Carl Sagan - Cosmos - Traveling - Speed of Light

Поділитися
Вставка
  • Опубліковано 1 кві 2009
  • Carl Sagan - Cosmos - Traveling - Speed of Light
    Copyright © 1980 Druyan-Sagan Associates, Inc.
    Copyright © 2000 Druyan-Sagan Associates, Inc.
  • Наука та технологія

КОМЕНТАРІ • 392

  • @WrestlingHeretic
    @WrestlingHeretic 13 років тому +87

    I used to watch this happily with my parents when I was a child. I remember this scene very vividly. I'm amazed to see it again on youtube after all these years.

    • @freshtoast3879
      @freshtoast3879 Рік тому +3

      How's life been these last 11 years?

    • @dragospahontu
      @dragospahontu Рік тому +1

      @@freshtoast3879 it's getting worse

    • @freshtoast3879
      @freshtoast3879 Рік тому

      @@dragospahontu no doubt

    • @nielspemberton59
      @nielspemberton59 5 місяців тому

      Hans Zimmers "Leave No Man Behind" from Black Hawk Down would be perfect music for this sequence. For people to benefit from relativistic space flight @ near light speeds they must go on the trip

  • @CaptFoster5
    @CaptFoster5 Рік тому +10

    I started reading Sagan's The Cosmos to my now 1 1/2 year old granddaughter a couple months ago. I shall begin to have her watch the series this Summer in between our time in the backyard garden.

  • @cliffhughes6010
    @cliffhughes6010 Рік тому +15

    Carl Sagan was a genius at communication.

    • @michaelschramm1064
      @michaelschramm1064 Рік тому +2

      Perhaps the greatest science popularizer of all, even possibly a level up from Isaac Asimov.

  • @Novastar.SaberCombat
    @Novastar.SaberCombat Рік тому +42

    The world REQUIRES more people like Carl Sagan. Let us all find more ways to cultivate and to nourish people like him. 🙂

  • @stu3131
    @stu3131 10 років тому +159

    Paulo got places to BE

  • @Corn-Pop.
    @Corn-Pop. Рік тому +17

    This is my favorite part of the entire series. As a kid in the early 80s when I was 6-8 years old I watched this and left it with a far greater understanding of science than of people I knew in my daily life. We didn't have the word Autistic then so I didn't know I was that but I had no idea why people did what they did but I understood this stuff.

  • @liarliar1408
    @liarliar1408 Рік тому +5

    I saw it when I was younger n today 2022, I'm now a data scientist for NASA. Carl influenced.

    • @michaelschramm1064
      @michaelschramm1064 Рік тому +1

      That’s awesome! I was also duly inspired by Dr. Sagan-went on to read 9 or 10 of his books, then read Asimov, Wheeler, Kaufmann, Gribbin, Hawking, Calder and many more-and became a soil scientist in the employ of the USDA/NRCS for 32 years.

  • @noelxcore1337
    @noelxcore1337 13 років тому +27

    If hell is where Cal Sagan is, that's where I want go

  • @The_Bad_Guy.
    @The_Bad_Guy. Рік тому +5

    "Pauulo says good bye to his little brother Vinchennnzo" I don't know why but I love listening to him say it like that haha. He almost had somewhat of a regal way of speaking

    • @michaelschramm1064
      @michaelschramm1064 Рік тому +1

      I still recall getting a chuckle out of that when me and my mom watched the original airing of Cosmos. Always had to be SO precise. The best occurs when he enunciates the !Kung tribe of the Kalahari-he must have practiced in front of mirror for hours, because the proper naming requires a special “clucking” sound with the tongue and the roof of the mouth. What a hoot Carl Sagan was!

    • @edntz
      @edntz 9 місяців тому

      His voice was incredible. When he started pronouncing ancient egyptian words, i knew he had to be someone special.

  • @QuicknStraight
    @QuicknStraight Рік тому +7

    So brilliantly explained in simple terms. Cosmos is still, today, one of the greatest popular science shows ever made.

  • @dansharkhunter
    @dansharkhunter 13 років тому +27

    What a legend Carl Sagan is... World needs more like him!

    • @That_Freedom_Guy
      @That_Freedom_Guy Рік тому +1

      Carl Sagan agrees with you! That's why he wrote books and starred in television shows, he wanted everyone to think critically as he did. It's up to us to embody the Sagan wisdom in ourselves as well as waiting for another Sagan type scientist to take Carl's old position.

  • @leokimvideo
    @leokimvideo Рік тому +12

    I understand how Rick Springfield seems to never age a day from this Cosmos episode. Rick must be always travelling near the speed of light. Rick is in his mid 70's yet he looks 20 something.

  • @Nerdfighter21
    @Nerdfighter21 13 років тому +14

    My father introduced me to this video when I was about 12 or 13 years old. I was old enough to understand what they were suggesting, but not quite old enough to stick around long enough to realize that we can't really travel at the speed of light yet.
    So, naturally, I went and got my scooter--motor powered. I considered replicating what I'd seen here (or attemtping to) but then decided not to, because I didn't want to age so slowly while everyone I loved aged and withered away.

  • @philipstevenson5166
    @philipstevenson5166 Рік тому +1

    italian restaurant service slows down at noon. great presentation to make it memorable. and also a bit of cultural exchange.

  • @RevStaplehurst
    @RevStaplehurst 13 років тому +7

    Can still remember watching this as a kid and being blown away

  • @foxyshabazz
    @foxyshabazz 11 років тому +12

    I was a little kid when this was on telly. I loved it, and I'm not sure why, because I hadn't really any clue what that Carl Sagan fella was going on about. But I remember I found his voice comforting, maybe because I thought he sounded a bit like Kermit the Frog at the time (though he doesn't really, but then again I am foreign). And also I liked Paolo and his magic red/blue scooter.
    A slice of my happy childhood suddenly in my mind again. Thank you for posting this video and giving me that.

  • @Runner2001
    @Runner2001 Рік тому +3

    This episode got me hook on Cosmos and the speed of light.

  • @JimTLonW6
    @JimTLonW6 10 років тому +24

    Totally fascinating; everyone should watch these vids!

  • @rocktoasted
    @rocktoasted 10 років тому +22

    Love Carl Sagan...RIP...

  • @atomixfang
    @atomixfang 9 років тому +22

    Only after I saw interstellar I realised how hard it would really be to experience something like that.

    • @shaquadradeloiserussell8659
      @shaquadradeloiserussell8659 9 місяців тому

      that is science fiction.
      travelling far into space will not change how fast you age.
      if you are 40 and it takes you 60 earth years to fly somewhere, you will still be 100 by the time you get there, and will look like it too, if you're not already dead from old age before then.
      If you could fly to that place in 1 minute, and be back in 1 minute,
      you and everyone else on earth, would still be 2 minutes older than you all were before you left.

    • @SiphiliSx
      @SiphiliSx 9 місяців тому +1

      ​@@shaquadradeloiserussell8659if you traveled away from Earth at light speed for 1 minute, then return to Earth at light speed for the same amount of time almost 100 days would have passed on Earth in those two minutes.

    • @SiphiliSx
      @SiphiliSx 9 місяців тому

      Theoretically

    • @shaquadradeloiserussell8659
      @shaquadradeloiserussell8659 9 місяців тому

      @@SiphiliSx
      No it would not have.
      One Earth minute is still one Earth minute, regardless where ever you are in the universe.

  • @talastrifekalayaan
    @talastrifekalayaan 11 років тому +3

    Traveling at the speed of light. Awesome. :D

  • @ivanbattaglinobattaglino8063
    @ivanbattaglinobattaglino8063 5 років тому +3

    Carl Sagan es un científico fascinante, por su trabajo (incansable) en la investigación y la divulgación científica en los campos de la astronomía, exobiologia, radioastronomia, la investigación de las ondas del sonido (el efecto dopler), el viaje en el tiempo a la velocidad de la Luz, (como en este caso del vídeo), la vida extraterrestre inteligente más allá de nuestro planeta tierra, y tantísimos otros temas muy interesantes, les envío muchos saludos desde la provincia de Buenos Aires República Argentina 🇦🇷

  • @rudybaldovino9528
    @rudybaldovino9528 5 років тому +3

    Very fascinating, thanks!

  • @nathancoleman8413
    @nathancoleman8413 Рік тому

    I really enjoy the beautiful Italian sights

  • @Zeno20
    @Zeno20 14 років тому

    I remember watching this while in my 8th grade science class. This explained things so much.

  • @sonicmarauder5044
    @sonicmarauder5044 5 років тому

    Sagans best ever series!

  • @wa27
    @wa27 10 років тому +12

    How did his brother survive all that time on the bench? What did he eat? Where did he poop? I hope the new version of Cosmos answers these loose threads.

    • @flashlk
      @flashlk 7 років тому +7

      Obviously, younger brother Vincenzo did not stay on the bench for fifty years. While Paulo took his relativistic ride, Vincenzo went on with his life, but returned to the bench at the same time every day, waiting for Paulo to return. The time dilation effects of special relativity led to a poignant reunion.

  • @Planetkid32
    @Planetkid32 9 місяців тому

    This has honestly got to be one of the most trippiest scenes from this series. Change my mind.

  • @baxill23
    @baxill23 13 років тому +2

    @theseaotter He was a master at explaining brilliant and complicated thoughts and ideas ina way that common folks like us could understand and that's a rare gift.. hopefully there will be another like him..

  • @bo0tsy1
    @bo0tsy1 9 років тому +3

    We hear an audible red and blue shift everyday as a sound wave. Listen to a car traveling on a road. You hear a high pitched noise as it approached, you hear an almost "exhale" lowered pitch as it passes. You have witnessed the effect Sagan is talking about. If we are in that car, our field of vision narrows due to speed relative to a "static" earth. Such a great video, thanks.

    • @ThyNazgul
      @ThyNazgul 9 років тому +1

      Yep the Doppler effect affects light waves and sound waves :D

    • @ReductioAdAbsurdum
      @ReductioAdAbsurdum 8 років тому +2

      > If we are in that car, our field of vision narrows due to speed relative to a "static" earth.
      No it doesn't. The effect Carl is talking about, where things that are behind you appear in front of you, only happens at very near the speed of light. It doesn't occur at the incredibly sluggish speed of cars.

  • @marsmusic2475
    @marsmusic2475 8 місяців тому

    Nice

  • @sonicmarauder5044
    @sonicmarauder5044 5 років тому

    Awesome! Quantum light tradectory!

  • @DJKiDTWiST2010
    @DJKiDTWiST2010 11 років тому

    Your second sentence is masterfully written; do not discount your own ability to spread knowledge.

  • @petegarcia5324
    @petegarcia5324 Рік тому +1

    Fantastic video....Watch it!!

  • @Moredread25
    @Moredread25 14 років тому

    That bit about light receeding is very interesting - I kind of knew about the other parts, but not about that.

  • @freesaxon6835
    @freesaxon6835 Рік тому +1

    I wish I could travel back to those times, god I hate 2022

    • @starstheory
      @starstheory 11 місяців тому +1

      Not unless we can travel at the speed of light

  • @krstanost
    @krstanost Рік тому

    Go fast, stay young.

  • @dave929
    @dave929 4 місяці тому

    Watched this as a senior in high school when it came out. Of course, my dad couldn’t understand it and hated watching it. My mother watched only because of Carl’s voice. Science was my thing, not theirs.

  • @AnFmusic010
    @AnFmusic010 12 років тому +2

    this just blew my mind lol

  • @blagger42
    @blagger42 Рік тому

    Wow

  • @Cerulean0987
    @Cerulean0987 12 років тому +3

    I suspect Sagan would have loved the news that neutrinos may go faster than the speed of light. He would not have focused on what was wrong with his earlier point of view, but what the implications of this new discovery was. He would have considered this information the best information available at that time, and that's ok.

  • @monoelmono9476
    @monoelmono9476 Рік тому

    Don't buy oil of olay to prevent ageing. Just travel at the speed of light for half hour!!
    Seriously though, what a magnificent video. This boggles my mind and makes no sense but it's all true which is a mindfeck.

  • @joshgellis3292
    @joshgellis3292 2 роки тому +12

    I have a practically overwhelming amount of memories of this ORIGINAL version of COSMOS.
    Nothing but respect though for the Neil DeGrasse Tyson version.😎👍🏻

  • @PrestonGarveyofthesettlements
    @PrestonGarveyofthesettlements 13 років тому +1

    Mind=blown.

  • @hooper365
    @hooper365 Рік тому +1

    This is honestly too elite a mind

  • @starstheory
    @starstheory 11 місяців тому

    A mean to get to the stars 🤩

  • @sanjasavic4523SoundLove
    @sanjasavic4523SoundLove 8 місяців тому

  • @stoyanfurdzhev
    @stoyanfurdzhev 2 роки тому

    Does blue and red have the same wave frequency? Or a conceptual rapresentation
    Is capable to possess two overlapping quantitative meanings?

  • @pctopgs
    @pctopgs 15 років тому +1

    I dont want anybody to think that they would be in some kind of twilight zone when traveling close to c. To you, your watch is ticking normally, to an observer, your watch ticks very slow.

  • @BuddhaMUD
    @BuddhaMUD 13 років тому +2

    @manwithouthat44 man i love his voice

  • @Dendebend
    @Dendebend 12 років тому

    @ALackOfLife good point.

  • @btkw
    @btkw 12 років тому

    @BlockisticStudios It meant that you experience time at a slower rate than an observer as you travel closer to the speed of light.

  • @csb7376
    @csb7376 2 роки тому +1

    I remember watching this as a kid. Weirded out by the ending.

    • @shaquadradeloiserussell8659
      @shaquadradeloiserussell8659 9 місяців тому

      No it wouldn't. 'Time' does not have one definition.
      It is all relative to each individual object, and yet it is also relative to all objects at once.
      Its all down to perspective.

  • @Veldoril
    @Veldoril 11 років тому

    Dem retro effects. (-:

  • @lmpo99
    @lmpo99 14 років тому

    Carl Sagan explains such complicated theories in such simple ways that people with almost no knowledge of physics and cosmology can easily understand what he is trying to explain.

  • @KodierungHerz
    @KodierungHerz 15 років тому

    Carl sagan is my new god

  • @drfoxcourt
    @drfoxcourt 14 років тому

    @opticmovies There was a PBS program, I think it was called "Einstein's Miracle Year" that explains the phenomenon very nicely.

  • @tsal
    @tsal 14 років тому

    Thank you. I'm a Christian who agrees with you 100%.

  • @EvilHeadBoy
    @EvilHeadBoy 13 років тому

    In short, light is always traveling the same speed, then again we define space and time by light so light is always going straight too, it's the universe that curves and slows down.
    Sidenote for anyone interested
    With the LHC now its cool, H+ going ~the speed of light, get added energy, so they, instead of going faster, expand in size.

  • @likable72
    @likable72 11 місяців тому +1

    Where can I get hold of the complete series of the cosmos by Carl Sagan ?

  • @ALackOfLife
    @ALackOfLife 12 років тому

    @ALackOfLife
    Quantum Entanglement occurs when photons, electrons, or molecules, interact physically then seperated creating an odd connection. yes it DOES sound silly, but seems to work that way.
    When their linked, the resulting member of the pair is set by the same quantum mechanical properties (state), which is indefinite (Quantum Superposition) with such factors such as position, momentum (these two ring a bell?), spin, polarization, etc.
    The issue where information can't be sent... cont.

  • @randy95023
    @randy95023 10 років тому +2

    If Paolo's Scooter got 60 miles per gallon, and he traveled the Speed of Light for just 10 minutes he would need a fuel tank that held about 2 quadrillion gallons of gas!
    What a great video. Mind expanding to think that Time does pass at such different rates and some brilliant minds discovered this with just pencil and paper (or chalk and blackboard) to do the requisite mathematics...

    • @flashkellam7395
      @flashkellam7395 2 роки тому +2

      Just as Carl Sagan had a “magic camera”, Paulo had a “magic motorscooter”. All to perform the “thought experiment”.

  • @FlakMeister
    @FlakMeister 13 років тому

    The Italians sure make some sick mopeds

  • @Xeno426
    @Xeno426 14 років тому +1

    If you were to travel at exactly light speed, time actually *would* stop for you. Getting to the speed of light, however, would require more energy than exists in the universe.

  • @8bit_paul
    @8bit_paul 6 місяців тому

    Wonderful to see this again 43 years later, I think Mr. Sagan prefaced this by saying "imagine the speed of light was 60mph" or some such thing?

  • @norco806
    @norco806 12 років тому

    QUESTION! Therefore, if we do ever travel close to the speed of light and go to a plat, let's say 1000 light years away. Did we simply age of a few years in that case? which would make it possible for use to travel long distance in once lifetime? (without the help of worm holes)

  • @theamatimasblink6594
    @theamatimasblink6594 4 роки тому

    tired light..The AMATIMAS BLINK..

  • @Magmatwister
    @Magmatwister 12 років тому

    We need more people like Sagan and less dirtbag politicians and middle eastern dictators. In 1000 years we will either by far more advanced then we could ever dream, or we will be consigned to dwell on our weaknesses rather then our strengths.

  • @ALackOfLife
    @ALackOfLife 12 років тому

    @ALackOfLife
    Comes into the fact that observation causes the entanglement process to collapse or sever, which forces the particles to take on definite states.
    Ergo, you can't send information through quantum entanglement.
    As a side note on wormholes, you should try looking up negative mass or tachyonic fields.

  • @Dendebend
    @Dendebend 12 років тому

    @BranZyme there was a miscalculation in the test. also neutrinos are a subatomic particle of an atom.

  • @helloitsnicko
    @helloitsnicko 13 років тому

    @UltimaXG2 Oh yeah I realise that.. but it's still pretty amazing!

  • @eddypdeb
    @eddypdeb 14 років тому

    With our current understanding of the world, it seems humans wouldn't survive the journey, yet this is an imaginative journey.
    Still, it is assumed that we can suvive the journey and the person traveling wouldn't die of old age since time outside your scope would pass faster relative to you, but your experience within the fast speed would seem normal.

  • @sl3dge78
    @sl3dge78 12 років тому

    I want that bike

  • @NowhereMan8521
    @NowhereMan8521 13 років тому

    "Your NOSE is just a little closer to me than your ears."

  • @zakalwe30
    @zakalwe30 13 років тому

    @RotaryKnight Yes, but doesn't relativity posit that as your speed approaches the speed of light, your mass approaches infinity?

  • @SanthoshCHRiS
    @SanthoshCHRiS 14 років тому

    @Apophisguard lol I'll keep that in mind. Thanks for the info ;)

  • @shawnshawn2699
    @shawnshawn2699 Рік тому

    Easy there Gods-speed-y-Gonzales!

  • @trademarkpics
    @trademarkpics 14 років тому

    @funkydankspliff. True, but its a pretty good indication of absence.

  • @talking1717
    @talking1717 13 років тому +1

    Italians sure know how to make a bike

  • @Corcoancaoc
    @Corcoancaoc 14 років тому

    @justinjiang, no. according to Einsten's theories, time is stretched out for the fast-traveller. That would make his clock running late. Anything else unclear?
    I've heard that the clocks onboard human-built satellites in Earth's orbit need to be readjusted continually because their shift in space-time. I also heard about a cosmonaut being in Earth's orbit for such a long time that his time had shifted a few milliseconds (comparing to ours).

  • @crumplezone1
    @crumplezone1 Рік тому +1

    We all will eventually die and become space dust again, this is a certainty

  • @sootmancer9851
    @sootmancer9851 5 років тому +2

    the younger brother was basically Hachiko

  • @martins9888
    @martins9888 6 місяців тому

    Go into the light Carol Ann

  • @aarperry
    @aarperry 14 років тому

    most common example is astronauts and space satellites.
    Astronauts in their average career will have travelled fowards in time by 20 hours... also the time on satellites have to be constantly adjusted to match a master clock on the earth.
    The time onboard a satellite creeps ahead into the future because of the speed they travel at all the time.. this is everyday stuff

  • @CamiloCanonB
    @CamiloCanonB Рік тому

    This shit makes me cry every time

  • @LockemShoto
    @LockemShoto 12 років тому

    Crazy Italian scooters

  • @RotaryKnight
    @RotaryKnight 13 років тому

    @zakalwe30 I know what you mean though, Im am not experienced in these sort of things, I only have basic understanding of sorts.
    people say mass is increased as you reach closer to speed of light, but from what I understand, people confuse mass with momentum, or energy

  • @TheSilverGate
    @TheSilverGate 4 роки тому +1

    That's some special Vespa right there

  • @alejo132
    @alejo132 4 роки тому

    Filming location ????????

  • @gogogogoguck
    @gogogogoguck 12 років тому

    to a person who is observing a ship approaching the speed of light would the ship seem as though it is slowing down as it is getting closer to light speed because time is slowing down to the ship so the observer would see this as well? Another way to put it is there is a track the ship and the people on it are travelling around this track at light speed to them the journey only takes 4 mins from point A to B but to the oberservers it takes hours so to the observers would the ships slower than..

  • @microflex22
    @microflex22 14 років тому

    @Corcoancaoc
    Exactly. If the Sun were to disappear instantaneously, we wouldn't feel it's shock wave for 8 minutes. Which is the time it takes light to travel from the Sun to the Earth.

  • @Roflcopter4b
    @Roflcopter4b 13 років тому

    @ubercoolist I love it when people literally can think of no way to defend themselves and resort to cheap insults. Keep it up. You only bury yourself further.

  • @btkw
    @btkw 12 років тому

    @BlockisticStudios I'm no expert but i do know that light particles are massless, maybe that has something to do with it.

  • @zcxvasdfqwer1234
    @zcxvasdfqwer1234 13 років тому

    @Galentw that's what I still cannot understand. Traveling at the speed of light to an observer would actually be considered a very slow way to travel if time for them goes by faster than for those traveling at near light speed.

  • @Corcoancaoc
    @Corcoancaoc 14 років тому

    @justinjiang, the watch doesn't slow down. An outside observer who looked at the traveller's watch would see that the watch was ticking slower than usual, while the traveller wouldn't see this slow-down. He would actually see the surrounding world a tad faster!

  • @DiazdelVivar
    @DiazdelVivar 14 років тому +1

    there's agood example about this. Imagine you watch a clock; what you see is the light that goes to the clock and then to your eyes, so you see it's moving; but if you go to the speed of light wlaking away from it and watching it, you'll see the same time always, until you stop, because you're going at the same speed of the image you received when you was in front of the clock (of course in real life you wouldn't be able to see the clock because of the distance, unless is a big star size clock)

  • @ray123ification
    @ray123ification 14 років тому

    we cannot observe reality directly, we are always slightly behind, waiting for the light to reach our eyes. maybe the 'answers ' mankind search for are in this delay. at the moment all we can do is look into the past.

  • @dmatthews7423
    @dmatthews7423 6 місяців тому

    Do you get tunnel vision because the light you would ordinarily see reflected off of the objects outside of the tunnel doesn't have time to reach you?

  • @btp5035
    @btp5035 10 років тому +12

    Paulo should wear a helmet if he's gonna go that fast...

  • @HansenSWE
    @HansenSWE 14 років тому

    You'd see either a black or white TV screen, since its a recording of light waves and refections, - Not real life.
    All colors would blend, to the human eye watching the TV.
    No light waves would accually be distorted.