How does Britain know what time it is?

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  • Опубліковано 24 гру 2024

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  • @TomScottGo
    @TomScottGo  2 роки тому +12337

    And if you're wondering why "coordinated universal time" abbreviates to "UTC": that's because it officially stands for "temps universel coordonné", and this way neither English or French speakers are happy. Compromise!

    • @330
      @330 2 роки тому +35

      Hi

    • @lazaraleksandrov2808
      @lazaraleksandrov2808 2 роки тому +1563

      hate to break it to you, but:
      *clears throat*
      neither English **nor** French speakers

    • @DawidKov
      @DawidKov 2 роки тому +377

      I'm surprised the British even allowed French near their time.

    • @definitelyarealperson248
      @definitelyarealperson248 2 роки тому +409

      CUT or TUC. No. We go with. UTC. why. Who knows?

    • @watchm4ker
      @watchm4ker 2 роки тому +141

      Politics in a nutshell

  • @ln5321
    @ln5321 2 роки тому +1355

    "How does Britain know what time it is?"
    Not by looking at where the sun is. I can tell you that much.

    • @deelkar
      @deelkar 2 роки тому +8

      actually they do. Just not by eye ;)

    • @matt_w
      @matt_w 2 роки тому +42

      Funny :) Interesting tidbit: turns out the 13th century Vikings had a system for telling the direction of the sun even through cloud cover by using a polarizing crystal.

    • @arturobrito2795
      @arturobrito2795 2 роки тому +11

      I like this joke

    • @grantgrove6800
      @grantgrove6800 Рік тому +1

      🤣

    • @flyerphil7708
      @flyerphil7708 19 днів тому

      ⁠@@matt_wtitbit

  • @georgeh-w5041
    @georgeh-w5041 2 роки тому +5153

    Tom Scott: consistently answering questions I never thought I had

    • @christhildpaschelke4502
      @christhildpaschelke4502 2 роки тому +46

      He's just that guy

    • @nriab23
      @nriab23 2 роки тому +24

      Best description

    • @lordgarion514
      @lordgarion514 2 роки тому +31

      Just wait till you find out what questions you didn't know about next week.

    • @Spyr0999
      @Spyr0999 2 роки тому +5

      That is so true

    • @Fizzyguy201Sonicguy6
      @Fizzyguy201Sonicguy6 2 роки тому +7

      @@christhildpaschelke4502 that guy who'll make interesting videos.

  • @EngineeringMindset
    @EngineeringMindset 2 роки тому +1807

    A cargo ship used to sail past my workshop, we knew it had passed because it changed the time on all our clocks and watches with whatever signal it was broadcasting. Had to switch to manual change devices.

    • @leocurious9919
      @leocurious9919 2 роки тому +83

      How and/or why would it do that? I doubt that it would be legal to transmit such a signal at your location.

    • @uberfuzzy
      @uberfuzzy 2 роки тому +212

      @@leocurious9919 likely to keep all the clocks/devices onboard in the timezone of the departure port.

    • @agustinvenegas5238
      @agustinvenegas5238 2 роки тому +130

      @@uberfuzzy time on board ships and the like drifts gradually through the voyage afaik, so when you get to London from shanghai you aren't like 10 hours jetlagged

    • @joetoaster447
      @joetoaster447 2 роки тому +72

      How are you getting jetlagged on a 40 day journey? There's no jet involved to introduce any lag.

    • @WyvernYT
      @WyvernYT 2 роки тому +100

      @@joetoaster447 If everyone aboard kept living by the time of their port of departure they might be many hours out of step with their destination's clocks. As Agustin Venegas pointed out, it's easy to slowly adjust the shipboard clocks during the voyage so that everyone arrives operating on the destination's schedule.

  • @zmanicminer
    @zmanicminer 2 роки тому +509

    For perspective on how little power you need to consume this signal: I once had a digital clock with a capacitor that could keep it running, accurately, for weeks after removing the single AA battery

    • @izzard
      @izzard 2 роки тому +10

      Nice avatar.

    • @ts4gv
      @ts4gv 2 роки тому +6

      Woah.

    • @AnoNymInvestor
      @AnoNymInvestor 2 роки тому +9

      It uses only nanoamperes.

  • @hadinossanosam4459
    @hadinossanosam4459 2 роки тому +2818

    4:45 "Standing by the ocean with a domestic appliance" is just normal Tom Scott behaviour at this point xD

    • @banderi002
      @banderi002 2 роки тому +193

      Honestly that old Teasmade video is one of my favorite.

    • @KHoos
      @KHoos 2 роки тому +104

      Previous time I can recall was also about time synchronization. It's a pattern.

    • @dsutt777
      @dsutt777 2 роки тому +37

      And it's definitely not going to be the last time either 🙃

    • @yuvalne
      @yuvalne 2 роки тому +10

      I understood that reference

    • @simonnaughton2272
      @simonnaughton2272 2 роки тому +3

      @@KHoos I could not find the Easter egg in this episode yet, but I think this is related.

  • @benz.
    @benz. 2 роки тому +2772

    I always find it amazing when I hear about these lesser known organisations which perform such vital work for the UK and the world. Great video, Tom!

    • @ErikUden
      @ErikUden 2 роки тому +96

      The British parliament could stop existing and nothing bad would happen for months, the NPL stops existing and the concept of time ceases to exist.

    • @FJB2020
      @FJB2020 2 роки тому +9

      This was invented in the US in 1948 and has been used here for decades...

    • @mojoich2736
      @mojoich2736 2 роки тому +7

      @@ErikUden OMG then how would we know the length of a piece of string As NPL was the master reference model.

    • @g76agi
      @g76agi 2 роки тому +21

      @@FJB2020 ok?

    • @Soken50
      @Soken50 2 роки тому +21

      @@mojoich2736 You'd have to
      *Shudders*
      Ask the French.
      *Dramatic brass ensemble*
      They're the keepers of metric units.

  • @iissacc
    @iissacc 2 роки тому +1345

    I appreciate that this video was done in "real-time" with the physical clock still ticking during the interview

    • @vigilantcosmicpenguin8721
      @vigilantcosmicpenguin8721 2 роки тому +48

      If you think about it, everything is done in real time.

    • @jsworpin
      @jsworpin 2 роки тому +195

      @@vigilantcosmicpenguin8721 they mean that at the begging the clock shows 10:40, by the end of the 5 min video it shows 10:45. Tom has done his segments with specific gaps for the interviews so the clock keeps time with the video

    • @steveywood100
      @steveywood100 2 роки тому +20

      @@jsworpin If you look carefully, its not in synch with the time on the video. It jumps forwards and backwards

    • @jasonrubik
      @jasonrubik 2 роки тому +29

      @@jsworpin It seems to be off by 2 seconds. At the beginning, the clock was behind by 5 seconds ( video timestamp was 0:09 and clock said 10:40:04 ) At the end of the video, the timestamp was 4:49 and the clock said 10:44:46 , approximately.

    • @eekee6034
      @eekee6034 2 роки тому +17

      @@jasonrubik 2 seconds isn't bad at all. :)

  • @charliedobbie8916
    @charliedobbie8916 2 роки тому +563

    I bought some radio-controlled clocks at auction. They were quite cheap, which more than made up for the fact they're fixed to the DCF77 signal out of Germany not the MSF signal out of the UK so they're technically an hour out. I took them apart and adjusted the hour hand so when it thinks it's 12 o'clock the hand points at 11 o'clock - and nobody is any the wiser. Apart from daylight savings transitions when the clock adjusts itself an hour before you'd expect.

    • @albertbatfinder5240
      @albertbatfinder5240 2 роки тому +14

      I’m sorry mate but your clocks have one purpose, and that’s to tell you the time!

    • @EcceJack
      @EcceJack 2 роки тому +47

      I brought a couple of digital clocks that can be radio-controlled if desired from Europe to the UK. I was quite happy to discover that, as I've been moving around the country, they still always pick up the German signal - even in Northern Ireland (though sometimes it takes a couple of attempts). Thankfully they also have a "correct by X hours" function, so I can see GMT/BST without opening them up and doing weird things to electronics :D

    • @SteelSkin667
      @SteelSkin667 2 роки тому +2

      I was wondering if there was some way to adjust or switch which signal they were picking up. Although I guess it has to be hardcoded based on the fact that each transmitter sends data in a completely different format.

    • @w75525
      @w75525 2 роки тому +4

      I had to do the same with my German clock.

    • @Berkeloid0
      @Berkeloid0 2 роки тому +8

      I bought one of these from the UK as well. However Australia is just a bit too far to pick up the signal!

  • @ddturnerphd
    @ddturnerphd 2 роки тому +44

    I've had the privilege of being involved in conducting peer review of Australia's equivalent of NPL and visited the clocks held by the National Measurement Institute of Australia, which maintain that country's connection to UTC. Fascinating stuff!

    • @jnthepassenger347
      @jnthepassenger347 16 днів тому

      Wait, this is a thing here too? I’ve never been able to buy an atomic clock here, never seen one.

  • @WhyNotAParadox
    @WhyNotAParadox 2 роки тому +946

    I used to work tech support for a radio controlled clock company. The amount of people that called in worried about the device being labeled with "atomic time" and having concerns about being irradiated was slightly concerning.

    • @gdclemo
      @gdclemo 2 роки тому +176

      Best not to tell them that the clocks are set by electromagnetic radiation...

    • @XiangYann
      @XiangYann 2 роки тому +116

      @@gdclemo AAAHH! Radiation! Think of the children!

    • @sirBrouwer
      @sirBrouwer 2 роки тому +34

      Well with clocks that is not that odd to think. If you think about it. not that long ago watches with uranium was a thing. (glows)

    • @adarshmohapatra5058
      @adarshmohapatra5058 2 роки тому +71

      @@gdclemo no one tell them that we have a run-off fusion reactor 150 million km away showering all of us with electromagnetic radiations for half the day...

    • @Anankin12
      @Anankin12 2 роки тому +42

      @@adarshmohapatra5058 and not just EM radiation, also α and β, too! Not to mention the whole lot of space that's trying to cook us and ruin our radio and analog tv signal with _microwaves_ , just like the ones in the oven!

  • @dzarko55
    @dzarko55 2 роки тому +1239

    My workplace got one of those! Too bad they forgot the control room is 20 meters from a 20MW induction furnace. It constantly tried setting itself to random times of day.

    • @minigolfkid
      @minigolfkid 2 роки тому +55

      they need a lead shield hehehe

    • @loc4725
      @loc4725 2 роки тому

      It's actually a conspiracy to get you to work for free.

    • @jwider96
      @jwider96 2 роки тому +111

      My school once got one of them for every classroom but somehow they showed the wrong hour, minutes and seconds were always correct but the hours were always wrong like the were in the wrong timezone or something like that. If you tried to change it to the right time the clock changed it self back to whatever wrong hour it used to be. In our complete school were just wrong clocks.

    • @adamsteelproducer
      @adamsteelproducer 2 роки тому +77

      @@jwider96 we’re you on the south coast? Might have been getting French time more clearly than uk signals…

    • @type17
      @type17 2 роки тому +82

      @@jwider96 Most Radio-Controlled clocks have a switch to set for the time-service of the (nearest) country you're in - UK, Germany (Central European Time), USA or Japan - maybe the school's clocks were set for Germany/CET? (You'd probably get the German time signal in most of the UK).

  • @ThePixel1983
    @ThePixel1983 2 роки тому +692

    The German version of this (DCF77) used to have a few bits just for the engineers to receive a few error codes. Today those bits transmit encrypted weather data and there's just one error bit. I built a receiver that shows those 60 bits on LEDs, and you could listen to the bips (100 or 200 ms each second) and decipher them on a piece of paper if you needed to.

    • @640kareenough6
      @640kareenough6 2 роки тому +17

      Why is the weather data encrypted?

    • @moatl6945
      @moatl6945 2 роки тому +111

      @@640kareenough6 Short answer: Because of the money.
      The weather data transmission isn't operated by the PTB but by a private company that sells licences for the decrypting data technology.

    • @RN1441
      @RN1441 2 роки тому +31

      France overlayers their signal on an AM radio broadcast at 162 kHz, the Russians use 66.6 kHz, and the Japanese 40 and 80 kHz. I forget which the Chinese use, but if you have a GPS disciplined oscillator you can coherently integrate their carriers and pull them all out of the noise floor from Europe, though bit decoding can only be done with the local ones.

    • @rayoflight62
      @rayoflight62 2 роки тому +7

      They use a speed of 1 bit/sec !

    • @nowster
      @nowster 2 роки тому +13

      @@RN1441 The radio station on 162kHz went silent some years ago but the frequency is still active just to carry the phase modulated time/data signal.

  • @Kaiser95Rom
    @Kaiser95Rom 2 роки тому +3

    I met Leon Lobo 4 years ago as my company used to sell UTC synchronisation and traceability to big financial institutions.
    I didn’t manage to get a single contract signed but it was fun going to Teddington and meeting the team there! Leon is a top bloke.

  • @izirins
    @izirins 2 роки тому +8

    I recall the time signal originally being transmitted from Rugby, Warwickshire, indeed i have a radio time controlled wrist watch i bought after 2007 (when they switched to Anthorn) which still referred to "Rugby Time"

  • @JustWasted3HoursHere
    @JustWasted3HoursHere 2 роки тому +573

    I remember seeing a demonstration of Einstein's Theory of Relativity where they had two synchronized Cesium clocks and they took one of them on an airplane and flew for an hour at about 600mph and, sure enough, when those clocks were re-compared the one that flew in the airplane was a few billions of a second behind the one that stayed on the ground, proving that time actually does slow down as you move faster.

    • @jacksonlarson6099
      @jacksonlarson6099 2 роки тому +96

      The time dilation effects of gravity also have to be taken in to account when designing satellites. The on-board clocks of GPS satellites, for example, are designed to tick at a slightly slower rate than ground-level clocks, because the passage of time for an object appears to speed up as it moves farther away from a massive object.

    • @gegessen159
      @gegessen159 2 роки тому +33

      @@jacksonlarson6099 as far as I know they even coded a switch, so they can take Einstein in account or not. The reason was, that his theory wasn't really proven when GPS was designed

    • @C.I...
      @C.I... 2 роки тому +6

      Does that mean we can find out what speed is absolute 0mph in deep/inter-galactic space by comparing the speed of time at various vectors?

    • @kaitlyn__L
      @kaitlyn__L 2 роки тому +25

      @@C.I... assuming you mean completely flat spacetime with no gravitational time dilation, even intergalactic space has some of it going on due to the gravitationally-bound “local group”. As far as we know, there’s no place in the universe with a total absence of gravitational waves

    • @paulhaynes8045
      @paulhaynes8045 2 роки тому +8

      I think they did something similar with the Apollo flights - onboard clocks were behind the earthbound ones when they got home.

  • @zforczek8653
    @zforczek8653 2 роки тому +8

    Hats off to Mr. Leon Lobo for the very eloquent explanations. Thx.

  • @kerpinos8341
    @kerpinos8341 2 роки тому +245

    Tom is really good about finding stuff that interests me but that I would otherwise have no clue existed.

  • @claudiajade624
    @claudiajade624 2 роки тому +149

    This was...bonkers. Had no idea could have clocks that 'set themselves' via radio control.

    • @prayagsuthar9856
      @prayagsuthar9856 2 роки тому +4

      Honestly! It's kinda cool to think about clocks setting themselves, that too by radio; I wish we had these in the U.S. tbh 😞

    • @CatCube2
      @CatCube2 2 роки тому +6

      @@prayagsuthar9856 We do. The transmitter is in Colorado, with call sign "WWVB", and it's run by the National Institute of Science and Technology (NIST). Every Wal-Mart I've ever been in has had clocks that will sync to this signal.

    • @sydhenderson6753
      @sydhenderson6753 7 місяців тому +1

      Got a clock at home that did that for many years until the battery stopped recharging.

  • @TheNextOuting
    @TheNextOuting 2 роки тому +4

    Tom Scott is 100% one of our favourite UA-cam. The quality of his videos with the level of research etc…
    Answering questions no one thought they needed to know!

  • @tcode3564
    @tcode3564 2 роки тому +241

    Here in Germany we actually have a similar institute in Frankfurt. It is called DCF77 and broadcasts at 77khz. Apparently the signal of DCF77 can still be received in Spain and Britain. I know that because I am currently doing my final exam as an it clerk here in Germany. My topic is actually about NTP, Wich is a protocol used to distribute time across a network. So this is a somewhat scary coincidence.

    • @charliedobbie8916
      @charliedobbie8916 2 роки тому +13

      Can confirm. Am near London and have two clocks synced from DCF77 at home.

    • @HuTnikCZ
      @HuTnikCZ 2 роки тому +4

      Yep, in Slovakia with 3 clocks. Altough In some corners or rooms, the clocks gets properly synced only in night. Otherwise they just stay at 00:00. I guess there is less interference at night.

    • @superfluidity
      @superfluidity 2 роки тому +2

      I think I saw clocks that receive DCF77 for sale in one of the German based discount supermarkets here in London last week. But I didn't buy it because I couldn't work out how it dealt with timezones and daylight save time. There didn't seem to be anywhere on it to tell it what timezone you wanted.

    • @davewalker7126
      @davewalker7126 2 роки тому +4

      @@charliedobbie8916 When they made the bright idea to move the transmitter from Rugby to Anthorn a lot of the South UK had (still has?) to use DCF as the signal did not reach.

    • @tcode3564
      @tcode3564 2 роки тому +2

      Has the British equivalent a lower range than DCF77? That is quite surprising to me since it is using a somewhat similar frequency.

  • @whisk3675
    @whisk3675 2 роки тому +51

    I always love it when you show us the amount of work that goes behind providing us with luxuries we take for granted.

    • @jovetj
      @jovetj 2 роки тому +1

      Not enough work tidying up all those cables, though. Yikes...

  • @MeFreeBee
    @MeFreeBee 2 роки тому +206

    The best thing about those radio controlled clocks is my 88 year old mum doesn't have to get a neighbour in to reset the one high up on her kitchen wall when the clocks go forward/backward.

    • @MonkeyJedi99
      @MonkeyJedi99 2 роки тому +11

      That is a GREAT feature! A fall for an older person can be very dangerous.

    • @TheQuark6789
      @TheQuark6789 2 роки тому +6

      Do you still have to change the battery, or is it wired or solar?

    • @MeFreeBee
      @MeFreeBee 2 роки тому +27

      @@TheQuark6789 I have changed it when visiting, just to be on the safe side.

    • @gwesco
      @gwesco 19 днів тому

      Where I live, we don't do "Daylight Savings." I've built several nixie clocks that either derive time from GPS satellites or the Network Time Protocol. It's cool to see them resynchronize after a power bump. Close enough for domestic use.

  • @alexanderevans_
    @alexanderevans_ 2 роки тому +2

    I work at the NPL! The atomic clocks are there I believe but you can't go see it without clearance, although there is a monitor on the outside which you did show in the video. If you work there you can go calibrate your watch against that monitor!
    If you ever come back please let me know, I'd love to show you around! Great vid!

  • @BradGryphonn
    @BradGryphonn 2 роки тому +9

    I've been a mild timezone/time-keeping geek since childhood when I learned about Greenwich Mean Time and Time Zones as a five-year-old. These very British timekeeping quirks bring me much joy.

  • @ronkemperful
    @ronkemperful 2 роки тому +123

    I live 6 miles from the national atomic clock transmitter in the USA that does the same thing. However, the timezone and daylight savings settings must also be selected on the clock for it to be accurate for the region. The UK has a great advantage with just one time zone. Great video.

    • @TJ-up8vj
      @TJ-up8vj 2 роки тому +12

      The UK has daylight saving time too. There's GMT (Greenwich Mean Time, which is also UTC) and BST (British Summer Time which is UTC+1)

    • @christiankolinski1563
      @christiankolinski1563 2 роки тому +12

      DCF77 (the german time transmitter) has two bits to encode if it is DST or not (so no need to set it) and a third bit that will announce the switchover from DST to normal time or vice versa, so the clock can switch even if it isn't receiving at the second the switch is made. Most consumer clocks don't sync constantly, but use a regular quartz clock for the time in between, which is "good enough" for a normal clock showing only whole seconds. There's even a leap second announcement bit... From what I can see, the MFS format used in Britain has about the same features.

    • @johno4521
      @johno4521 2 роки тому +1

      Trump wanted to get rid of the American transmitter to save money.
      I guess it's safe now....

    • @Jules-wn7hl
      @Jules-wn7hl 2 роки тому +11

      @@TJ-up8vj America's problem is that different states have different timezones and rules for DST. For example some states have daylight saving time, but some do not. Britain has DST, but it has only one timezone and one rule for DST. Not so for the US, so the equipment must be much more complex.

    • @VTX-Live
      @VTX-Live 2 роки тому +1

      At the tone, 12 hours, one minute, coordinated universal time.

  • @Sam-pm9vy
    @Sam-pm9vy 2 роки тому +213

    It’s never really occurred to me how radio controlled clocks work beyond “probably some kind of radio signal somehow” but they’re fun to watch when the hour changes

    • @dogwalker666
      @dogwalker666 2 роки тому +8

      The signal is also encoded into BBC Radio 4 LW Transmission.

    • @emmanotsostrong
      @emmanotsostrong 2 роки тому +6

      As a dumbass American, could you please elaborate on why it's fun to watch when the hour changes? Is that when it syncs up or something?

    • @Sam-pm9vy
      @Sam-pm9vy 2 роки тому +30

      @@emmanotsostrong At least the ones I’ve seen and from what I remember (it’s been a while) the hands whizz round and round for a bit until they settle on the new time

    • @charliedobbie8916
      @charliedobbie8916 2 роки тому +22

      @@emmanotsostrong They're not usually digital clocks - they're analogue. So they tick away as normal but then daylight savings changes and the hands spring into action and whirl around until they settle on the new correct time. It's something quite unexpected to see from something that's usually just a crystal oscillator and and bunch of plastic cogs.

    • @vigilantcosmicpenguin8721
      @vigilantcosmicpenguin8721 2 роки тому +2

      The only good thing about daylight savings is the way the clock goes 'round.

  • @odditoriumleviathan8725
    @odditoriumleviathan8725 2 роки тому +1370

    If I had a nickel for ever time I stood with a domestic appliance by an ocean, I would have two nickels. It’s not a lot, but it’s weird that it happened twice.

    • @dogwalker666
      @dogwalker666 2 роки тому +34

      I guess you have never been camping that the sea side.

    • @ironicjason257
      @ironicjason257 2 роки тому +31

      can you produce more nickel please? the world is having a shortage of nickel currently

    • @vlycop7404
      @vlycop7404 2 роки тому +1

      we all have the same reflex, which is amazing

    • @nathanberrigan9839
      @nathanberrigan9839 2 роки тому +5

      @@ironicjason257 Unfortunately, melting a coin for its metal carries a 5-year prison sentence. Though you can probably avoid that by melting outside the US.

    • @tamaslapsanszki8744
      @tamaslapsanszki8744 2 роки тому +13

      Is that a Doofenschmirtz reference? If it is, I'm so proud of you

  • @thomasvlaskampiii6850
    @thomasvlaskampiii6850 2 роки тому +36

    The US has a similar system. NIST has the radio station in Colorado, WWV, transmitting at 2.5, 5, 10, 15, and 20 MHz. It's designed to cover most of the US. The site is shared by its longwave cousin, WWVB, transmitting at 60kHz. And in Hawaii, theres WWVH transmitting at 5, 10, and 15 MHz. All 3 stations use UTC for their time codes

    • @greg2092
      @greg2092 2 роки тому +2

      Love that system, I can pick up Hawaii and Colorado on 10mhz on my hf rig

    • @thomasvlaskampiii6850
      @thomasvlaskampiii6850 2 роки тому +3

      @@greg2092 I really like that they have a phone number you can call and listen in. Shame it autodisconnects after 5 or 10 minutes

    • @tvdan1043
      @tvdan1043 2 роки тому +10

      The instructions for my clock have a suggestion for when it has trouble receiving the signal inside a building: "Take the clock outside and point the back of the clock in the general direction of Fort Collins, Colorado."

    • @thomasvlaskampiii6850
      @thomasvlaskampiii6850 2 роки тому +2

      @@tvdan1043 Seems reasonable. As long as you know which way Colorado is from you

    • @autarchex
      @autarchex 2 роки тому +4

      @@thomasvlaskampiii6850 If you don't, knowing the current time might not be the highest priority.

  • @Backroad_Junkie
    @Backroad_Junkie 2 роки тому +18

    40 years ago when I used to TSD Rally (Time-Speed-Distance, you can calculate any one of them if you know the other two), we used to synchronize all out clocks/watches to WWV.
    WWV (the shortwave station that broadcasts time in the US) has been in operation since 1919, 103 years...

  • @artheus5069
    @artheus5069 2 роки тому +35

    this is one of those extremely cool things which hide behind very mundane objects or occurrences. Great video as always!

  • @QALibrary
    @QALibrary 2 роки тому +25

    Tom the reason why they did not let you near the clocks in London... they saw your Tower Bridge video and the same day it broke!

  • @jamesengland7461
    @jamesengland7461 2 роки тому +183

    Ah, yes. My kids' elementary school had these in every classroom. They were usually waaaay off, or exactly right, or forever spinning to recalibrate, or whatever whimsical thing they wished to be doing. Mostly being wrong.

    • @particularry9885
      @particularry9885 2 роки тому +19

      Hehe we have saying in Germany: Only a broken clock is right twice a day.

    • @DoctorWhom
      @DoctorWhom 2 роки тому +25

      Schools full of clocks usually have a controller on location.

    • @AaronOfMpls
      @AaronOfMpls 2 роки тому +26

      @@DoctorWhom Yup, there's a central clock somewhere (usually a panel in the school office), wired to remote clock faces in every room. The remote faces are electric clocks running off synchronous motors, that turn with the power line frequency -- evidenced by the second hand turning constantly rather than ticking along.
      It was kinda cool to see those clock faces re-synchronize, too. They would all stop for about a minute, then suddenly advance one minute and start turning normally again.
      Though my high school temporarily replaced most of the remote faces with regular battery-powered quartz clocks. The central clock had no battery backup for power cuts -- and the power was being shut off multiple times (outside of school hours) while the school was being added onto and remodeled. ...Which led to the system being hours off from the actual time until construction was complete. It was a couple years _after_ construction had finished before they finally got around to putting all the old clocks back, though.

    • @jamesengland7461
      @jamesengland7461 2 роки тому +2

      @@AaronOfMpls in our school, they were just like Tom's.

    • @jmckendry84
      @jmckendry84 2 роки тому +7

      We've got a bunch of these radio synced clocks at work. Shame no-one checked to see if they'd be able to pick up any reception where they were placed...!

  • @johnbeauvais3159
    @johnbeauvais3159 2 роки тому +2

    My favorite wristwatch has this feature, the Citizen Radio Controlled series update every night and have a little dial to show whether or not it got reception last night. It’s really cool during spring forward when it stops, twitches, then the hour hand springs forward on its own.

  • @elton1981
    @elton1981 2 роки тому +1

    We have three of these in my church. One in each of the vestries and one in the tower. Yes the one in the tower is used to set the time on the Victorian tower clock. I’m very impressed at the single take and that Tom must have waited for exactly the right amount of time for each segment from NPL to be edited in. The elapsed time in the video and the clock match to the second, very impressed indeed.

  • @martinsykes5722
    @martinsykes5722 2 роки тому +12

    Nice to hear how much work goes into the network, I work for a school and they swopped the classic clocks for over 100 of these unfortunately they struggled with signal and would randomly set themselves to other times and to get the time back we had to rest them in a window for 20 minutes.. We replaced the clocks again a few years later.

  • @BarryHWhite
    @BarryHWhite 2 роки тому +8

    The timing of this vid was great. I'm watching it for the second time

  • @jamesbenz3228
    @jamesbenz3228 2 роки тому +4

    The video title really did a disservice to how interesting this video turned out to be! I only decided to watch because you can't go wrong with a Tom Scott video!

  • @simoneavery4417
    @simoneavery4417 2 роки тому +61

    I remember hearing one of the NTL time group members complain about their shiny new building. It was made of metal and was expanding and contracting by mm with the ambient temperature changes. Antennas on the building associated with time transfer were now seen to be moving in time during the day. Their previous brick building was less prone to this effect.

  • @IsabelleJRogers
    @IsabelleJRogers 2 роки тому +5

    I’ve asked myself this question many times before, but never thought to seek out the answer. Thanks for giving it to us!

  • @ghammer9773
    @ghammer9773 2 роки тому +52

    "standing, by the ocean, with a domestic appliance"
    Funny enough, also talking about time and synchronization of devices.

  • @TheMan83554
    @TheMan83554 2 роки тому +5

    "Do not touch the maser" taped to the box.
    Perfection.

  • @ZeeBri
    @ZeeBri 2 роки тому +120

    The same thing is inside a lot of G Shock watches. One of the things that makes the M5610-1ER the best watch ever made. Keeps perfect time with radio and don't need to change the battery with solar

    • @moosemaimer
      @moosemaimer 2 роки тому +8

      Mine is over 15 years old and is still going strong on its original battery, because it's solar powered.

    • @Jabber-ig3iw
      @Jabber-ig3iw 2 роки тому +8

      Not even close to the best watch ever made, but very accurate.

    • @harrier331
      @harrier331 2 роки тому +1

      @@Jabber-ig3iw A watches purpose is to tell the time and do so accurately, if it can fulfil those functions reliably for vast periods of time then it works, there is no "best" about anything here if the watch fulfils its main purpose. That is of course unless you are getting into the inane world of watch snobbery that cares more about brands and percieved value than anything tangible.

  • @Matthew-jf1hr
    @Matthew-jf1hr 15 днів тому +1

    As a local living in nearby town, I can also tell UA-cam that the beeps, that you hear every hour on the radio (pips) also come from Anthorn

  • @MrMockingbird1313
    @MrMockingbird1313 2 роки тому +25

    Hey Tom, Years back I had a similar discussion with an USAF expert. The USA national standard is a clock in Denver Colorado. It is critical to know how far the sender radio is to the receiver clock. Then a range adjustment is made, so that satellites line up, bombs hit on target, and official top secret communication is made in real time. BTW, the adjustment from Denver to Scott AFB, just outside St. Louis where I live is a +4000/second.

    • @valkyrie_pilot
      @valkyrie_pilot 2 роки тому +3

      isn't it in Boulder, at NIST?

    • @MrMockingbird1313
      @MrMockingbird1313 2 роки тому +1

      @@valkyrie_pilot Perhaps it is now. I believe I was told it was in Denver, years ago. But what you say makes sense because USAF has a large presence in Boulder. For instance, the Air Force Academy is in Boulder. Anyway your presentation was excellent. And my second point is that the EXACT time adjusted around the globe is critical for TOP SECRET communications. So, today, exact time is more critical than it was 20-30 years back when this plan was hatched.

    • @quillmaurer6563
      @quillmaurer6563 2 роки тому

      @@MrMockingbird1313 The Air Force Academy is in Colorado Springs, about an hour south of Denver (Boulder is a half hour northwest). The time standard, at least currently, is in Boulder, I had an internship there a few years ago (the time-standard atomic clock itself is sort of anti-climactic, looks like a server farm). That time-standard sends a signal to an antenna array similar to the one in this video located north of Fort Collins.

    • @MrMockingbird1313
      @MrMockingbird1313 2 роки тому

      @@quillmaurer6563 Your information is more current and accurate. But, my information goes back 20 years. I just remember vividly that secure transfer of information depends on an accurate time standard and the transmitter was 4000/second west of here. Funny stuff? Thanks for your correction.

  • @Teverell
    @Teverell 2 роки тому +20

    ...the last time Tom stood by the ocean with a domestic appliance was with a Teasmade on the Isle of Grain. Also an interesting video!

  • @intruder313
    @intruder313 2 роки тому +173

    I’ve had a small alarm clock linked to this for about 30 years - and people don’t believe me.
    Sadly it had never really kept itself set so whenever there’s a stupid time change like BST I have to manually prod the hour or take the batteries out.
    At least it’s survived 3 decades of me dropping it.

    • @HuatengChen
      @HuatengChen 2 роки тому +11

      Ha! That's funny! Cause my kitchen electronic clock did not survive dropping it. The antenna inside wasn't attached strongly enough and it snapped with a wire. Didn't know that until the clock started drifting by a minute or two. Then I opened it, soldered and secured the antenna back in place. Works like a charm ever since. And it just recently switched itself to summer time too.

    • @lifthras11r
      @lifthras11r 2 роки тому +15

      @@ragnkja The time signal (MSF) itself does have a summer time flag, but I guess the clock didn't honor that.

    • @aukondk
      @aukondk 2 роки тому +11

      My analogue one would adjust itself. Most fun when the clocks went back but it could only go forward so it spun around until it skipped 23 hours.

    • @mrxmry3264
      @mrxmry3264 2 роки тому +2

      @@ragnkja it'll stay accurate for as long as the battery can deliver enough power to move the mechanics fast enough.

    • @ximono
      @ximono 2 роки тому +6

      You’d be lucky if an alarm clock made today lasted 3 years. The times have changed.

  • @peterh9238
    @peterh9238 2 роки тому +4

    In a previous job, when the UK signal was moved from Rugby up to Anthorn i was task with moving our receive antenna slightly to compensate for the different location. The antenna was a ferrite rod in a white plastic box so it was directional. Being located on the south coast of the UK, we could pick up the DCF77 signal much stronger than Anthorn.

  • @markfinlay422
    @markfinlay422 2 роки тому +1

    I've seen these radio masts as I live fairly near and had no idea they were for radio clocks. Excellent Tom!

  • @joeholt9166
    @joeholt9166 2 роки тому +7

    I was at the NPL this week and based on what I was told the clocks are in the main building. The hydrogen mazers are in the same building as well. All very interesting.

  • @davidbrattain1446
    @davidbrattain1446 2 роки тому +48

    My "Citizen Eco-Drive" bought back in 2010 is set automatically by radio, changes to whatever local time I happen to be in and because of the solar panel in its face, never needs a battery or winding. The best watch I have ever owned (including Rolex).

    • @Motorman2112
      @Motorman2112 2 роки тому +1

      Does it have GPS to get the time zone?

    • @Joetechlincolns
      @Joetechlincolns 2 роки тому +2

      @@Motorman2112 Search for Atomic watch. I think watches capable of time syncing use 60KHz from WWV in US. Don't know what the standard is for other countries.

    • @johno4521
      @johno4521 2 роки тому +3

      Even some Casio's have this tech ..

    • @chaos.corner
      @chaos.corner 2 роки тому +1

      @@Joetechlincolns You still need the time zone. This requires your location to at least a reasonable level (or effectively so).

    • @dcarbs2979
      @dcarbs2979 2 роки тому

      To really put it to the test, cross the border to or from the west of China in a north or south direction.

  • @JomirBrands
    @JomirBrands 2 роки тому +7

    Tom Scott has all the answers!

  • @TofranBohk
    @TofranBohk 2 роки тому +40

    "Standing by the ocean with a domestic appliance..."
    The beginning to a long lost Robert Frost poem.

    • @vigilantcosmicpenguin8721
      @vigilantcosmicpenguin8721 2 роки тому

      I think it's actually the title of the original draft of Sittin' on the Dock of the Bay.

  • @MaxScheibenpflug
    @MaxScheibenpflug 2 роки тому

    What a well-spoken gentleman. Time seems safe in his hands.

  • @am2schmarvelous
    @am2schmarvelous 2 роки тому +3

    I used to run a call center that took financial trades over the phone. Trading in the US stops at 4pm EST. We read the time off our desktop but it turns out that each desktop was running it's own independent time and it became obvious that across the call center there was a variation in time of more than 60 seconds. So depending on who answered the call at near 4pm, a person's trade happened today or tomorrow. That's when I discovered the importance of time.

  • @janmelantu7490
    @janmelantu7490 2 роки тому +10

    “DO NOT TOUCH THE MASER” I wasn’t going to but now I want to

    • @dustinrichardson6533
      @dustinrichardson6533 2 роки тому +4

      All signs exist for a reason. You just know someone dropped a pen behind there and unplugged the entirety of Britain from time trying to reach back and pick it up

  • @DracoVictorious
    @DracoVictorious 2 роки тому +15

    I had a radio controlled watch once. That thing was great and was an unfortunate casualty to a car door, saved me from a broken wrist though.

  • @Gandalf_the_Black_
    @Gandalf_the_Black_ 2 роки тому +37

    I remember these from school. There was always at least one that was stuck ticking away the same second over and over.

    • @mpf1947
      @mpf1947 2 роки тому +11

      Needed a new battery.

    • @mjxw
      @mjxw 2 роки тому +1

      "and so we beat on, clocks against the current, borne back ceaselessly into the past..."

    • @ximono
      @ximono 2 роки тому

      *caesium-137ly

  • @metakarp_
    @metakarp_ 2 роки тому

    I thought this video was gonna be about how the whole of the UK knows to stay in the same timezone, despite the meridian line going right through it. But I suppose the answer to that is much simpler than the videos topic! Great video as always :)

  • @stellehonig1541
    @stellehonig1541 2 роки тому

    I go out drinking with my mates every Sunday, and the hungover new Tom Scott video watching experience has become a favorite part of my life

  • @jblyon2
    @jblyon2 2 роки тому +15

    We had a bunch of these clocks at my high school in the US. They were a massive improvement to the older hardwired clocks, which drifted by several minutes, and had to go through a reset cycle, every hour.
    The best part was when the receiver failed on this particular model clock the clock just went haywire. It would spin forwards or backwards at a seemingly random speed until the battery was depleted. This was 20 years ago though, so I would hope the reliability has improved since then.

    • @PjotrV1971
      @PjotrV1971 2 роки тому +1

      Ah, so that's what's happening to the clocks at our school!

    • @slome815
      @slome815 2 роки тому +3

      Main voltage clocks are more the accurate enough for a school. The grid frequency (at least in europe and the UK) is adjusted so these clocks keep accurate to within seconds. They need to be set once ofcourse, but after that they will keep their time forever, as long as the grid keeps it 50Hz fairly accurate.
      Now, my school just has quartz battery clocks, and for some reason they seem never to be right, and constantly need battery changes.

    • @igorrinkovec6405
      @igorrinkovec6405 2 роки тому

      @@slome815 Well, you would still need to account for DST right? And if you imagine a building with 100 clocks, that gets annoying...

    • @slome815
      @slome815 2 роки тому

      @@igorrinkovec6405 Yes, you still have to account for DST. It's not that much work if everyone just changes the time in their own desk / part of the building. At least you don't have to change batteries. Where I work it seems I'm the only one that changes batteries on dead clocks.

    • @eDoc2020
      @eDoc2020 2 роки тому

      @@slome815 The traditional system is to have "slave" clocks which accept advance and reset signals from the master clock. You only need to set the time on the master unit and then every other clock in the building will set itself from that.

  • @strategicgnomer1
    @strategicgnomer1 2 роки тому +7

    I tell you what I can't get over: that dude's cable management.

  • @countbenjamin1442
    @countbenjamin1442 2 роки тому +4

    Thanks for the info. I love your videos because they are direct and a little humorous here and there. When you show locations can you show a map for those of us who might not know geology well. I know UK but not all the little areas. Thank you for all your videos do love them

  • @timmmychanga
    @timmmychanga 2 роки тому +1

    Thank you very much
    I love the audio quality
    🔥❤️🙏

  • @autarchex
    @autarchex 2 роки тому +1

    I have a little alarm clock that listens to the US version of this time signal, broadcast from Fort Collins, Colorado. I live about 1200 miles away in west Oregon. Works great, runs for about 5 years on a AA battery - over that time scale I don't know if the battery goes flat more from usage or the slow self discharge that limits its shelf life!
    I have never seen a radio controlled wall clock with analog hands instead of a little LCD display; it never occurred to me that they exist. Now I want one.

  • @jaberwoky_
    @jaberwoky_ 2 роки тому +20

    Sixty years ago (when I was a kid), the local radio station transmitted a beep beep beeeeeep on the hour, every hour so you could adjust your clocks. I remember asking my dad why the clocks didn't adjust themselves automatically.

    • @JxH
      @JxH 2 роки тому +7

      I listen to BBC World Service via SiriusXM satellite radio. The top of the hour beeps are noticably late, due to network latency. As much as 18s late (!!), the one time that I actually checked it.

  • @flizzycat
    @flizzycat 2 роки тому +67

    I bought small weather station in Lidl that said it's "radio controlled". I thought that refers to the temperature sensor being radio connected. But then was surprised when clock got set up by itself

    • @DavidPaulMorgan
      @DavidPaulMorgan 2 роки тому +6

      I have a Lidl LCD lounge clock - time, date, moonphase, temp. one slide switch to change from UK to Germany timezone. ~£15 in the bargain bin and I've had it for years.

  • @andrewschroeder9502
    @andrewschroeder9502 2 роки тому +9

    Tom: "If you buy a clock that says radio controlled..."
    Europe, US, Japan: "Ah yes, quite normal"
    Rest of the world: "What sorcery is THIS!!!"

    • @lifthras11r
      @lifthras11r 2 роки тому +5

      A catch is that time signals go beyond the country borders, so there are a lot more countries where radio-controlled clocks are a thing. For example South Korea has its own time signal (HLA) but the Japanese time signal (JJY) is more frequently used because you can receive JJY from SK just fine.

    • @brunosco
      @brunosco Рік тому +1

      Also China

  • @alancliff9208
    @alancliff9208 2 роки тому +2

    I’ve still got my radio alarm clock that uses this transmitter must be over 20 years old! Always on time 👍🏼

  • @affalaffaa
    @affalaffaa 2 роки тому

    I've had the same radio controlled alarm clock for around 30 years. It's only ever right. Thanks Grandma.

  • @Alastair_Yates
    @Alastair_Yates 2 роки тому +5

    Thanks Tom. ❤️

  • @TastyBusiness
    @TastyBusiness 2 роки тому +25

    I'm betting we're being shown one of the engineering labs in the facility rather than a production time source, because that lack of cable management screams "test bench" and not "permanent infrastructure"

  • @Geeksmithing
    @Geeksmithing 2 роки тому +78

    The wire management for that hardware is horrendous. Didn't they even TRY to clean up before the Tom Scott inspection?!? 😆😜

    • @jjosua
      @jjosua 2 роки тому +8

      I paused 49 seconds into the video due to the, OMG CABLE MANGEMENT IS A THING!, issue. I think anyone who has worked in IT in almost any capacity would have a similar reaction.

    • @44Needles
      @44Needles 2 роки тому +9

      @@jjosua probably no one wants to arrange the down time in case it doesn't come back up again

    • @DaedalusYoung
      @DaedalusYoung 2 роки тому +15

      It's meticulously organised that way, because if they move the cables, it might change the official time by half a nanosecond.

    • @44Needles
      @44Needles 2 роки тому +9

      @@DaedalusYoung don't want to add extra length to the cables, it could set us back thousands of years

    • @PaulinaStopa
      @PaulinaStopa 2 роки тому +2

      After the scene with these messy wires I can't focus on the topic anymore. I just keep thinking how is it possible that such a big and important organisation can't make cables right!

  • @siblacklockhughes612
    @siblacklockhughes612 2 роки тому

    Thanks Tom, I see these regularly and always wondered what they were!

  • @JBDazen
    @JBDazen 2 роки тому

    What's so great is that the time change on the clock is just as long as the video itself, so you did that presentation without any (significant) breaks.

  • @jennybrockartist
    @jennybrockartist 2 роки тому +4

    This is such a coincidence - only this week did I realise that the round battery-operated 12-hour clock in my classroom automatically stays at the correct time, and I have been wondering every day how/why (Didn't bother to Google it, though - so thanks Tom!) :D

  • @Blizzardmane
    @Blizzardmane 2 роки тому +12

    I was literally looking up how radio clocks work 3 days ago. This is the second time tom has done this. 🤣

  • @yuvalne
    @yuvalne 2 роки тому +700

    Never heard about radio controlled clocks. Are these even a thing outside the UK?
    Cool nonetheless.
    edit: outside Europe?

    • @RathOX
      @RathOX 2 роки тому +123

      My watch is radio controlled & yes Atomic timing is normal.

    • @ManuelKampmann
      @ManuelKampmann 2 роки тому +91

      Yes they are. Had a watch on my wrist for years that could do it. I've never visited the UK - only been around Europe a bit and it always worked :)

    • @srk5151
      @srk5151 2 роки тому +127

      There are transmitters in Germany, Japan, China and the US (and possibly elsewhere)

    • @seabears_hate_circles
      @seabears_hate_circles 2 роки тому +59

      Yes. In the US there is an atomic clock in Fort Collins, Colorado.

    • @dggxxfhhfxc2244
      @dggxxfhhfxc2244 2 роки тому +28

      We in Germany have that too

  • @limerence8365
    @limerence8365 2 роки тому

    This was all done on the same take. Good on you Tom. His rant about voting on Numberphile took ages because you could tell from Big Ben in the background.

  • @jimturpin
    @jimturpin 2 роки тому

    Cool beans! I used to work for the guy (Mark Witsaman) who invented and patented the method of deriving time from the radio signal to control a common clock.

  • @jeg1972
    @jeg1972 2 роки тому +6

    When this video popped up, I was actually retro-fitting radio controlled clock mechanisms into all of my wall clocks!

  • @POTThaesslich
    @POTThaesslich 2 роки тому +7

    Interestingly I have been to the German “official clock” in Braunschweig and when I came to the UK I had to solder a new bit to a homemade clock so that it could detect the UK signal rather than the continental DCF77

  • @acmefixer1
    @acmefixer1 2 роки тому +6

    Tom didn't mention that other countries - US, China, etc. - have essentially the same thing. They also compare their time to the one in Paris. Thanks, Tom for making the public aware of what makes our technologies work. ✔️✔️

  • @psprog
    @psprog 2 роки тому +2

    These transmitters always fascinated me when I was younger (having been born and raised in Carlisle, a few miles away). They only recently became the time signal source after Rugby shut down. Was originally a low frequency transmitter for submarines I believe.

  • @cukuwaekele
    @cukuwaekele 2 роки тому

    It wasn’t that long ago until I search difference between the Internet time and the atomic clock time differences. I’m so glad this video came up on my feed.

  • @-tsvk-
    @-tsvk- 2 роки тому +26

    I would have been interested in the radio protocol for transmitting the time data. What exactly gets sent over the air and how often does it update? Is it time only or date also? How much is there error correction for improving resilience? What kind of chips do the clocks contain to decode the data? Etc.

    • @cdl0
      @cdl0 2 роки тому +3

      Wikipedia has all the details. See also NPL's website.

  • @Opus313
    @Opus313 2 роки тому +26

    What time is it?
    Time for a new Tom Scott video!

  • @_julian
    @_julian 2 роки тому +27

    0:38 that's really bad cable management

  • @texaco2735
    @texaco2735 2 роки тому

    Love this - its like classic Tom Scott from the 2010s!

  • @MatthewBester
    @MatthewBester 2 роки тому +1

    We have those radio clocks at work. Always puzzled me how it works. Thanks Tom!

  • @wojtekpolska1013
    @wojtekpolska1013 2 роки тому +4

    4:46 I remember! the last time you were holding an electric kettle, which was also a clock!

  • @annando
    @annando 2 роки тому +5

    Tom should visit the DLR in Braunschweig in Germany. That's where the German time is measured. The room itself looks fantastic (I once visited it). It is a room with copper walls to avoid any electromagnetic influence from the outside. The time signal is then transferred to Frankfurt from where it is transmitted via longwave at 77.5 KHz.

    • @aliceif4597
      @aliceif4597 2 роки тому

      Funny enough the transmission towers are very close to the 50°N 9°E point - which is in a nearby forest, maybe about a kilometer away.

  • @a_rush
    @a_rush 2 роки тому +42

    Then there's my dad trying to get down the clock to the exact time by spending half an hour and still failing.

    • @timberwoof
      @timberwoof 2 роки тому +2

      I feel called out. ;-) :D

  • @BarnOwl61
    @BarnOwl61 2 роки тому +1

    Hallo Tom, great topic for a watch enthusiast like me. I receive my radio signal from the Mainflingen complex in Germany. Never had a problem receiving a good signal here in the Netherlands (for my Casio Waveceptor watches) . There are great videos about the way the signal itself works. Thanks!

  • @ke6gwf
    @ke6gwf 2 роки тому +1

    The US has a similar system in place.
    And I loved your practical demonstration of how to introduce time errors!

  • @rwall514
    @rwall514 2 роки тому +13

    The Canadian version of this, CHU, is even more interesting; in addition to putting out a time signal on a low frequency, its 3330 KHz signal carries Bell 330 modem tones as well as the speaking clock.

    • @JxH
      @JxH 2 роки тому

      Actually, the Canadian version of "this" is the USA's WWVB, which covers much of Canada. The shortwave signals (CHU, WWV) are sufficiently different purpose and usage that they should not be conflated with the VLF time signals topic here.
      Nitpick. :-)

    • @denelson83
      @denelson83 2 роки тому

      It's actually Bell 103-compatible time code.

  • @CricketEngland
    @CricketEngland 2 роки тому +5

    I have a watch that does this for over 20 years and have never had to set the time on it once, it even updated when the clock change from GMT to BST

  • @JohnBroedtl
    @JohnBroedtl 2 роки тому +82

    Because of Tom's clock it is again documented that Tom uses only one take for a video and rather tries to do it another time than to blend different takes together in one video ;)

  • @DelphineDofain
    @DelphineDofain 2 роки тому

    This video is so Timey Wimey, it's Fantastic!

  • @willkroon3372
    @willkroon3372 2 роки тому

    I just asked my dad this question like an hour ago. And now i find this vid you posted only 3 hours ago. Incredible