How Was Video Invented?
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- Опубліковано 28 бер 2019
- I always wanted to know why film looked better than video. Moving electronic images have as long a history but were invented for a different purpose. This video was sponsored by B&H Photo: www.bhphotovideo.com
Huge thanks to:
Richard Diehl, Video Labguy / videolabguy
www.labguysworld.com
Branch Education for awesome animations
ve42.co/BranchEd
Minutephysics for mechanical TV animations
/ minutephysics
Mark Schubin
Engineer and explainer, SMPTE Life Fellow
www.smpte.org
This is a video I've long wanted to make, about what makes video look like video and, up until 10 years ago or so, not as appealing as film. I grew up with the two technologies (film and video) in parallel and to me they always seemed like two ways of achieving the same ends: recording and replaying moving images. But their histories are quite distinct. Film was always a way to capture moving images for later replaying. Video started out as a way to transfer images from one place to another instantaneously. This dates back to the first fax machine, mechanical TV, live broadcast tv and ultimately videotapes. This history focuses on the early decades of video and not the more recent switches to chip cameras and solid state storage. Maybe that's a story for another day.
Additional resources and references:
The Dawn of Tape: Transmission Device as Preservation Medium
ve42.co/dawnoftape
What Sparked Video Research in 1877? The Overlooked Role of the Siemens Artificial Eye
ve42.co/sparkvideo
Video Preservation Website:
videopreservation.conservation...
Image Orthicon Tube:
interiorcommunicationselectric...
Film vs Digital
stephenfollows.com/film-vs-di...
Eyes of a Generation:
eyesofageneration.com
Television in the US:
www3.northern.edu/wild/th100/t...
www.classictvinfo.com
Music from www.epidemicsound.com "Seaweed" "Capture a Picture 1" "Colorful Animation 4"
![How Does Film ACTUALLY Work? (It's MAGIC) [Photos and Development] - Smarter Every Day 258](/img/n.gif)
If you're watching this right now, it's probably because I posted a gif in the community tab. I'm curious if you:
a. have seen the video already
b. didn't know it existed and the community post is the first you heard if it
c. saw the title and thumbnail before but didn't click it
d. other?
b
B
B or C, if i did see it i dont remember
B
B
Dude, maybe I'm biased because we're friends.... But your latest content had been consistently phenomenal. This is excellent.
Thanks man! Maybe it’s because we’re friends but that means a lot to me. And thanks for taking the time to help me with the v2512! I was messing around like a noob before our call.
Now that i realized it, Derek actually uses the "signature" camera of Destin.
Fake friendship is fake
SmarterEveryDay do you guys ever argue about who has the most subcribers ?
@@IBAction thats a childish dumb thing to argue about
History of veritasium
2013:- Uploads once six months or so
2019:- Uploads every alternate week
AND WE LOVE IT
In ancient Veritasium times it was supposed to be 2 videos a week, I think
I'm waiting for him to upload weekly!
Almost makes up for Vsauce
nobody noticing his name tho
@@DNAinstinct if that limits quality not
Alexander Bain's electromechanical fax at 1:18 is so smart. One person in 1843 could understand electric transmission, clock mechanisms, paper chemistry, and lithography to assemble the whole system!
@Samuel Cruz and also because at that time there was so much to be discovered and ponder over....
Unlike now...where all the low hanging fruits are plucked and huge funds, technology, management is needed for any R&D.
@Samuel Cruz but that "still so much to be discovered" can't be discovered the way things used to be discovered decades back....
Now you need a team of specialists, director, huge funds, technology, patent uses to just scratch the surface.....
Take black hole image for example.....
Stacks of hard drives of code and years of research to get just a blur image !!
@Samuel Cruz true, and also is that there was so much to discover! at one point one person could know all of human knowledge, that is no longer the case. and he wasnt alone, the 100% had help. he built on those before him
@Samuel Cruz You really don't need many cool things to wase your time. You just waste it less cool and that's all. (but yes, you partially right, just partially)
@@SonGoku-zd6eo but one can only say that after looking at the past. Maybe 50-60 yrs later from now, people will say that research in 2020s was so easy as there were so many things to explore.
It's mind boggling to think how the pioneers of this technology came up with their ideas, let alone figured out how to build them
Yes, even if we as individuals each have general intelligence our discoveries and actions build up like sediment and create a super intelligence not one lifetime could achieve
I'm so glad to see you posting more. Thank you for continuing to educate us.
No.
@@a51mj12 No u
Also big thank you to B&H
I'm a pretty active commenter on several of my favorite UA-camrs videos. It would be cool to get paid to comment, but I just generally like Veritasium and also taking money to comment would go against my morals. He's pretty entertaining. Is there something about him I missed? Did he become controversial? I'm going to ignore any other Jewish comments because I'm from Tennessee. I've never met a Jewish person. And I have no reason to dislike them.
no such thing as glad or more or not, doesn't matter, say infinx any no matter what
It’s truly amazing that people were able to think of stuff like that from scratch
Especially back then with limited information and materials. Pioneers.
I got butterflies in my stomach while watching this video, realising how genious minds were/are out there.
Very few things in this world are done without the wind and losses of those before
+Kalvin Halvorson
No, they didn't figure this out from scratch, they built on previous knowledge, it took more than century worth of Engineering and creativity to get to where we are today. Cathode Ray Tubes were not originally invented for displaying videos, but, some Engineer or Physicist figured out that you can use it to display images on a screen.
So, you take an invention already made by another scientist, and you add on top of it, you don't make it from scratch.
And you work with a team, not by yourself, because it would be near impossible for one person to figure all this out on his own. And i know this because i'm an Engineer, and it's all about team work, and building on previous knowledge.
Even today, most technology you use may seem futuristic, and advanced, but it's no different than the technology from the 80's and 90's, we have just gotten more creative in how to better design and manufacture it.
White people*!
these people were genius for sure 👏🏽
And sometime in that history, a bunch of people with slide rulers put men on the moon. Calculators didn’t exist yet. What percent of the human population is just being carried around by geniuses like these?
90% ?
@@shukrantpatil more like 99.99%
Agreed
We should respect those who started this video production cameras and TVs
Excellent presentation !!! I grew up in the 50’s and 60’s. By age 13 I was riding my bicycle, with western flyer wagon behind, going around the neighborhoods collecting discarded TV sets. I would take them home, remove the tubes take them to the store and test them, and use the good ones to replace bad ones in other sets. Then sold working TV’s in garage sales. I can remember when fast moving TV images became less smeared when the vidicon camera tubes were replaced with the new plumbicon tubes that had a faster response.
My father, Sam Holtz, was a legend in broadcast television engineering, telecine, and video post production. He filled my head with all this engineering science and history over the course of most of my life, along with all these technical inner workings you described... just about all of it now a lost art. I watched this video with a deep appreciation for you. Thank you for bringing this knowledge to a new generation and doing it so accurately. I just wish my dad was still around to have watched your video. I know it would’ve put a smile on his face. Peace.
Wow! I'll sure like to know about you and your late father. :)
Big salute to your dad and his peers
I highly recommend a channel called "Technology Connections" they did a full multipart series on TV and recorded media, everything from video to laser disks, and whole 20 minute videos about elements in this video, like color wheels and other novel ways of broadcasting color. Its a highly interesting series!
@@volrath__ Thanks! I know the channel well. Been a subscriber for years. Highly interesting indeed. Cheers!
I think it's imperative that 20th century ingenuity doesn't get lost to history. The 20th century was special, in the sense that it was a time of transition. Before the 20th century, the things we invented lasted for centuries, so we have a lot of time and examples of each tech we used before that time. We won't forget about horse shoeing, or water mills, or traditional swordmaking, because they were done for millenia. The things we do now in the 21st century, each lasts even less, but there is better tech to document each (the internet doesn't forget), and they are built in more straightforward ways. We don't do 4k video in a different way than we do 1080p, or 720p, and we won't do video in a fundamentally different way centuries from now, it'll still be pixels stored and transmitted digitally using a certain format. But in the 20th century, we had just enough tech to do crazy thing, but not enough to do it in a straightforward way, so we had to get creative. And each of those techs was unique, different from the previous one, and lasted for a short enough time that we might just forget about them. In the past 20 years we went from 240p digital video to 360, 480, 720, 1080, 4k, 8k ... basically the same tech, just different quality, codecs, etc. The same for audio. Meanwhile, in the 20th century, we jumped from cylinders to vinyl, to 8-tracks, to cassettes to CDs. From 16mm to VHS to vCDs. From the telegraph to the telephone, from rotary to push button, from analogue over copper to digital over copper, to VoIP. From massive bricks to flip phones to smart phones. All in such a short timeframe.
As you said, lost art.
IIRC, the fact that storing video was difficult meant that a lot of famous TV broadcasts have been lost, even after recorders were adopted.
The early episodes of Dr. Who were taped over for later programs, and now the only known recordings are audio tapes made by a viewer. The moon landing footage was also taped over by NASA, so the only existing footage is a video recording of a video broadcast of a video broadcast.
Key thing to remember is that it was a cultural decision as much as a technological one. The mindset was simply that TV was one and done, like a theatre show. The idea of keeping the early episodes of Doctor Who for posterity seemed inane to most people at the time.
That said, taping over the moon landings is pretty ridiculous!
There must be a conspiracy theory in there somewhere.
So then, when people watched the moon landings on TV back in the late 60s the video quality was actually better than what we see now?
@@travisscavoni369 well yeah
You can try to see the loss in quality by recording a UA-cam video in 480p with your phone's camera that's set to record in 480p, then record the recording again using the same method.
@@travisscavoni369 the famous video of Neil stepping off the leg onto the surface was from a broadcast camera recording a monitor in mission control. Kind of like how so much footage of the D-Day landings was either lost or destroyed. Very sad! But very odd looking back
It's interesting to know that high quality 35mm Film has about as much detail as a 4k Video. The reason most movie studios waited so long to switch to video is not because they waited for better editing techniques, but more because they waited for Video quality to catch up with film quality. That's also the reason why some older Music Videos can be remastered into good looking 4k, but some newer ones can't, the latter being shot in Video.
Even today, some movie directors opt to shoot on film, but 70mm IMAX often, rather then 35mm...
Wow, great insight!
Yup. Film reproduces color more accurately too. This is why older movies tend to look very vibrant and almost overexposed, and newer movies look cooler.
what is the difference between film and video?
Film means the old physical way of storing/making videos while video in this case means digital way of creating/making videos. So an analog camera uses film but your phone is a digital camera.
@@gertrude1585.
Derek, I enjoyed this show. Quite interesting to get a wrap up on film and video, as I lived through this period since 1953! Great to see how it was done after just being on the receiving end most of my life. Also I got involved in acquiring and editing video in the mid nineties. Oh, I also enjoyed your show on the wave pool, that is so amazing! Thanks for everything!
I forget that UA-cam is named after the thing it's gradually replacing
Gradually!
before you know it!
literally...
...spooky.
Completely!
Ummm... What is it replacing ?
@@brianpinto9243 TV
*My ears and eyes haven't experienced the ancient technology in so long*
Now we know how they built the pyramids with ancient tech
While it has been phenomenal, I think he's centering too much on himself. Too much of Veritasium logo's and Derek in the video. I come here to listen to scientists and ideas of science.
But this was a History video so I guess for this one, its fine. Hope you do rectify later though.
Was this comment generated by an ai?
4:50 The color wheel wasn't a dead-end. Single chip DLP projectors still use them to this day.
smart boi
Even though DLP is a sub quality image compared to current LCD projectors and even OLED flat panels.
Its a cool mechanism like the hole disk.
correct!!!!!!
Damn. Imagine you could tell those folks that you would be able to do all that with a handheld device. They'd be astounded!
Doctor Emmett Brown was suitably impressed by Marty's camcorder in the first *Back to the Future.*
An honest wish 👍🏼
They would be crashed with inferiority complex and would never invent anything.
@@Roma-tz9vg A Grandfather-Like paradox.
@@pilosopher974 Yeah, and it's likely that in 50 years from now people will be smiling on our pathetic 4k oleds too.
Can you imagine..
"Gather round, family! Time to fire up the color-picture tube!"
*switch clicks, relays fire, belts and color wheel spin up*
*shouting* "SO WHAT DO WE WANT TO SEE TONIGHT?!"
More like wait 5-8 minutes before it warms up then reboot it and it will show picture.
They probably didn't have much to choose from
Don't forget the rabbit ears! Sometimes one of us had to stand just right next to the tube to pull in that one station.
That's funny, because DLP projectors have always used a fast-spinning color wheel (but with more colors and faster), and cheaper ones still do that, and this is the reason when you're seeing an image from one and move your head, you temporarily see a faint rainbow.
@@selforganisation Wow really? I've definitely noticed that weird rainbow when moving around, never knew what caused it.
Derek: *explains inner-working mechanics of video cameras*
Me: Magic. So, it's magic. Got it.
The power of the human brain to understand such things about the natural world... Is the magic.
@@kbbeats3099 It's a bit different if someone has the understanding of the world being flat.
OMG I was thinking the same thing! I even posted my own comment saying so before I found yours lol!
@@kbbeats3099 no weed is magic nothing else
This is how I always feel after learning how some kind of technology exists. Engineers are basically wizards
I don’t see how everyone just goes about their day to day life not wondering how electricity works. Let alone subjects like this. I’m so glad I chose to go to college and choose a career path to mess around with awesome things everyday. I remember my first couple of semesters of college I thought I was learning magic. I wish there were more people like this guy to show how amazing everything we use everyday really is.
It's Terrifying that so many people are so comfortable being ignorant!
What did you go to College for?
@@anthonyalvarado6465 first time I got two Associates of applied science in Instrumentstion and controls technology and another Industrial Systems Technology. I’m back in school to get my B.E.E. though. I probably have a year or so left.
@@ZackLeath good for you, hope this year is going well for you!! good luck with all your future endeavors!
@@anthonyalvarado6465 wait what? Ignorant? Because I didn't do STEM I somehow chose to be ignorant and found comfort in it? Why tf would I know how a TV -actually- works. Strange comment from you
@@anthonyalvarado6465 Many don't have the opportunity or choice to seek this kind of knowledge. With how society works currently, the ignorant will always be the majority unfortunately
Richard's obvious passion for video is endearing. I've watched Technology Connection's videos about this subject, and this is a very good compliment to it.
Amazing. If everyone was as smart as me we would still be using stone tools.
If everyone were as smart as me we would have been type 5 civilization by now
@@abcdefghijklmnopqrstuvwxyz1062 not a smart comment
@@dand1486 no it is a smart comment
@@abcdefghijklmnopqrstuvwxyz1062 type 5 would need way more time. No way humans would be there by now even if everyone has always been at maximum as dumb as you are
@@abcdefghijklmnopqrstuvwxyz1062 by saying that your comparing yourself to god, since type 5s hold complete mastery over every aspect of the universe
We are so lucky to be living in this day and age
i wonder why do i see you everywhere.
Well... it's 2020 now and over a million have already succumbed to it. Luck runs out...
WRONG!!!!!!!!!!!!!
everyone thought like that
Rat mak stop using this strategy to get subs id doesnt work anymore its just pathetic
It's really a very informative and thanks a lot for this effort!
you nail more than I will ever understand!!! Your camera angles are amazing! Thank you for your amazing videos!
It feels like Veritasium filled in for Vsauce after Michael lost his marbles.
Probably an improvement in the quality of content from an educational viewpoint, even if it is less entertaining.
Is that what happened?? Is that why his shows have been so weird? Did the psychedelics get him?
What are you talking about. Michael matured stylistically
Ahhgg, that Vsauce host is so irritating. Keeps jumping all over the frame. So distracting on topics. :3
Veritasium host is great! Simple and eye shooting and easy to be pace with him. :)
Yeah
I really appreciate when you sketch it up, I really feel like I'm going with the fow of the ideas, I juste gotta look the picture, it's fantastic!
Thank you for answering the question how the Cameras worked back in the days. Been wondering about this point for years.
Keep up the great work!
I really enjoy how in-depth you went with all the analog stuff. I love those sorts of electronics.
It's awesome how you describe the history so succinctly yet comprehensively, and at the end you challenge us with a relevant question about how all of this technology influences us today. Great content, please keep making more!
I’m seeing stuff way after the fact because I’m a fairly new subscriber ... seriously enjoying catching up with the awesome informative content. Mind blowing facts, history and other science/technology trivia.
I hope you make more follow ups on this topic. The younger generation does not know the gargantuan efforts of the engineers in developing the current technology for image processing.
Not to mention the strain it placed on the general populace.
1. The issues of keeping backward compatibility at each step (including black and white to color)
2. The format transitions (VHS vs Beta, CD, DVD, Blue Ray etc)
3. Aspect ratio change ( 3/4 to 9/16)
This video is a great start. A great fan of you.
Mechanical TV for the masses! All power to the vidicons, image orthicons and iconoscopes! From a Labguy and Veritasium fan: thoroughly well researched and executed. Thank you.
2 Seconds in and my ears are already feeling assaulted, truly the oldschool TV experience.
I will now count to 3 and then I am still the unprettiest UA-camr of all time. 1...2...3. Btw I have two very hot girlfriends. Thank you for your attention, dear managa
ゼストくん - let's draw manga! Spoken like someone who wasnt there
I'm guessing Derek didn't notice this - you do kind of lose the sensitivity of it as you age.
I know, everytime I watch an old film I think "everyone goes on about how visual quality has improved but damn the audio has too"
@@jessicaonymous4352 Not what he was refering to :)
Wow I feel so lucky to have this handheld device capable of recording and playing back a video. What a great sweep in technology ❤️
Its so nostalgic to know all this history . Thank you for showing us all this documentary in such amazing way 👏👏👏👏
kick ASS dude, ive been thinking about this specific topic lately and am excited to give this a watch! thanks Derek!
Who else saw this first on Technology Connections?!
Freaking awesome to see one topic done in two different ways!
I watched this tomorrow
*incredible* channel, that Technology Connections 💙
Yeah I saw this explained ages ago on Technology Connections, that guy has a really good way of explaining things
I "hear" technology connections words "CRT's don't have pixels!" at 4:35. It would be cool to see him comment on this video.
That's exactly what I thought! CRTs don't have pixels :/
Alec did a very good job of explaining this subject in-depth, but I'm sure Derek's take will be easier to process for those not technically-inclined.
Always nice to see you man!!
Great video. I never thought I would shout out a sponsor in the comments, but B&H is no joke. Actually, shopping there is kind of an experience. Cool place with the best service out there.
I remember those old AVR1 2” video recorders when I started in television. The heads were suspended on air bearings because mechanical bearings created bearings created too much time base errors. Also the capstan driving the tape had negative pressure to suck the tape onto the cylinder... then came the exciting time of rewinding the tape. Because the capstan was committed to driving the tape it would spin at many thousands of RPM, a break in the tape during rewind could be lethal so operators had to leave the room.
You could hear the machine rewind many buildings away.
They cost in the order of $250K back in the day.
Now it’s so easy and cheap with fast digital electronics.... luxury!
Well done! Well explained and highlighting the most important milestones and aspects while having to skip probably thousands of others. I think the essence was captured quite well, knowing that one could make hours of video about, er, the history of video.
I've read into the history of television many times and watched many videos and this was the best explanation of how television works I've ever seen -subscribed , liked , and VERY appreciated 😊😊
Great video! When I was at College, one of my lecturers spend a lesson explaining how incredible the invention of videotape (and more importantly the spinning video head) was, and how we can thank this invention for so much of the technology and accomplishments we have made today. I remember so little but it may be worth a look at in a future episode.
Thank you Derek, as always your work is fantastic!
Having touched on the Nipkow disc, this would make a great segue into spinning-disc confocal microscopy. It's basically the same technique being used today to create some of the most advanced real-time 3D biological microscopy images out there.
great video and education. in my early years i learnt the older style of photo; plate glass negatives, ect.... and i recall the hard times in the new era. love the new tech, just wish more knew about the old ways.
Amazing video, it was really interesting. On a side note, I would have liked the inclusion of the engineer Guillermo González Camarena and his contribution to the color tv
You're UA-cam's best quality content maker.
And I was wondering about this topic a week before and just forgot about searching about it.
Thank you man.
Meanwhile a girl doing bikini try-on videos makes more views...
Great video. I am an electrician and during one of my classes, on data systems, I asked my instructor about the television, I don't remember his exact response, but I know it wasn't satisfactory. So went down the rabbit trail. Anyway, its fascinating what transitors have done for the world of electronics.
I would love to see you do a video on the history of video transmission. Especially because of the patent wars that ensued over it (the first actually was a man who had the idea as a boy).
Thanks a million for getting a gimbal! Your older videos caused motion-sickness. Great work on explaining things that are usually taken for granted.
Thoroughly unclickable, yet still enjoyable.
Is the algorithm wrong?
No. My enjoyment must be wrong.
Yes it is still wrong -2019
The Algorithm doesn't select for quality, informativity, etc., just click-through-rate.
It does what it does.
Is a plant wrong if it grows good looking but bad tasting fruits? What about the other way around?
How video was invented while watching it on video? Taken for granite.
@@delphini8055 granted
@@Flobbled that's actually not true. The algorithm accounts for a lot more than just click through rates, like watch time, likes vs dislikes and the amount, also whether those clicks come from a different website or not.
people are so damn smart and i'm so damn lucky to have been born in an era where we have all this stuff...because i'm sure as hell not smart enough to have come up with any of this crazy technology
Most people aren't. The crazy thing about humanity is that 95% of the population just makes sure that the species survives. The last 5% actually innovate new technology to share with their tribe. In our case, our tribe being the planet.
@@ReptillianStrike seriusly 5 percent care that is 350 million...rather 0.1 percent.at max 7 million
@@sarthakverma1860 I was pulling numbers out of my ass to prove a point. I wasn't considering the population of the planet when I said 5%
@@ReptillianStrike Well, the entire planet except North Korea #HermitKingdom ... (...and small uncontacted tribes people)
Just wait for what's coming! You're glad now but you would have never known if you were born earlier. Same will be said in 50 years. If we're still here of course!
Love you since your first TV series I saw. Greets from Germany. Keep Up the fantastic work. ❤️
I'm a little surprised as to why you didn't talk about how modern-day TVs work or touch base on how plasma TVs work. It would be very interesting to learn that from you. Almost every video that you make, I understand and love it. Keep it up man.
Fun and interesting video altogether. Also, I loved how the ending made me think of the time when Fred bought a new bowlingball for Wilma as a christmas gift ;)
Loving these regular uploads 🤘♥️
i've wondered this exact question too. Thanks for digging into it!
Video to video falling in love for your passion to learn in detail
Like how I was trying to trace back what's Microprocessor/microcontroller, what was before that before that before that..... and all things related to it
Watching the motion stabilizing stick on the camera in the mirror was pretty awesome
Edit: Cool you actually came back at the end and mentioned it
Please make a part 2! From that first video recorder to now. This was amazing!!!
why don't you check out ua-cam.com/channels/y0tKL1T7wFoYcxCe0xjN6Q.html who goes into more depth than yjis pop channel.
amazing video and information dude.....you rocked it
I don't know why it took until now for this to be recommended to me but I am so glad! Great video once again!
Please continue this! This would be awsome if you talked about electron scanning as well!
A technical correction for the graphic animation at 4:15: The coils are swapped. The coils driving the side to side sweep are actually the top and bottom coils, and the vertical sweep is from the side coils. The force imparted on the electrons is at a right angle to the magnetic field its travelling through. (Being also at a right angle to its velocity.)
4:28 best voicecrack so far! Keep up the hard work
Lol i replayed that moment 3 times
Wow, we are cruel and heinous beasts that can find pleasure in pointing out a such silly “imperfection” in such an impressive work of excellence. 😂
Really informative technical explained simply with great illustrations. Nice! Found your video on UA-cam under "cameras" heading. Good job.
Came here from the end screen of your How To Go Viral video! Love what you do man, and have for years! Keep up the good work
same
He's still going viral!!
ua-cam.com/video/sJ6Pj2IGCHQ/v-deo.html
By far one of the best videos on UA-cam. Good question
towards the end of the video :)
Your presentation and topics are awesome
PERFECT! excellent walk down memory lane..I knew tv broadcast came somewhat from radio tech, and I heard of Kapkow (so?) discs but you covered it so well. Thank so much.
Watching the electron gun scanning each line was mesmerizing. Never thought I'd get to see that. Thank you!
The phosphor colored dots are not pixels. Technology connections has a good explaination on why that is.
Awww yeahhhh, Technology Connections
@@SreenikethanI IEEE!
technology connections is what it's all about, though I like to watch him at 1.5x speed.
@@Jaqen-HGhar He sounds drunk at 0.75x, and really drunk at 0.5x!
@@buddyclem7328 true true lol
This was one of the most fascinating videos I’ve ever seen. I’ve loved to learn more about this topic.
so informative. love it man!
Great video!
Would have loved to see you do a collaboration with Technology Connections on this!
I really enjoy these videos. Thanks for making them.
Yeah, nicely explained, great presentation man!
Just discovered your channel, great informative video 👍👍
You just gave me a whole new appreciation for television.
"I always wanted to know why film looked better than video."
That's the first line of your description but the video doesn't explain that...
YipYapYoup yeah, it dances around the edges. If you look carefully when I insert the VHS tape into the VCR it says pt.1? So if there is a part 2 this will be a more central focus. The fundamental problem is data. But part of it is as addressed here, converting images into electrical signals is much more complicated than optically recording images on film.
What's a VCR and am I stupid
@@sumaiyashahid2266
Video Cassette Recorder
Stupid would have been not to ask the question and stay ignorant about this.
@@sumaiyashahid2266 VCR is a video cassette recorder, people used to (and some probably still do) use them to record television broadcasts onto a video cassette, which contains a spool of magnetic tape, for later playback. Initially they were expensive (like any new technology) but became very prevalent in homes during the 1980s and '90s.
Probably because digital video requires compression, while with film you can have the full picture with no loss for every frame.
I think I missed the most important part to me: capture. I understood how the image was drawn line by line into a screen. But how did they manage to capture from the real life objects into first in black and white and then in colors? What technology was used for that? I think that was explained in a few seconds while the drawing of the image was explained in detail, and there is a whole story behind how images were captured electronically.
Awesome videos by the way.
I was always super curious how videos and photos are made. Still quite difficult to understand but really cool video!
Even after hearing this (finally) explained, it is still so mindboggling. I can barely fathom that video transmission is possible.
Fun Fact: The ‘p’ in ‘1080p’ in UA-cam stands for Progressive Scanning and not Pixels
I guess I shouldn't be surprised that there are actually people who might not know this. I mean, to me, it's obvious because there is also 1080i, which stands for interlaced, so process of elimination and all that.
TheSefirosu200x None of my friends knew about it, until I told'em!
Because 1080i is interlaced
@@TheSefirosu200x Oh, you said that
480i = Standard Definition TV
480p = Extended Definition TV (DVD)
720p = High Definition TV
1080i = [not sure] HDTV
1080p = Full HDTV
1440p = Quad HDTV (4 x 720p)
2160p = 4K TV (4 x 1080p)
4320p = 8K TV (4 x 2160p)
This is the closest I've ever come to understanding how video works. Thanks so much for your explanation!
This was fascinating to watch 😊.
This is like 10 Technology Connections videos condensed into one. A great overview!
Technology connections will react at 4:35 since he already proved that CRT's don't have pixels! But great video anyway.
He proved?? I'm pretty sure that was never disputed.
I can already hear him screaming from across the world.
Color CRTs do have pixels in a certain sense. They have RGB phosphorus dots lined up in a grid of triads. But instead of a circuit that activates them it is a cathode ray.
It’s fascinating how the electron gun can be controlled so accurately
Thing is, the election gun is NOT so accurate, that's where the "shadow mask" comes into play to make color CRTs work. This also means that the colored phosphor dots are not pixels as mentioned in the video. Technology Connections has a great video on the topic, check it out if interested to learn more.
I may be hard on the Veritasium guy, but he named his channel "an element of truth", so glossing over the fact that the shadow mask is what makes color CRTs work is a pretty big omission IMO.
@@user-yg4kj2mf1p and you forgot to mention the deflection coil ,which Is what guides the electron beam to the proper position on the back of the phosphor coated screen.
Excellent video! My first job out of college was to design and manufacture video displays for Sony Electronics (mid-1990s). The technology for how video displays work is only surpassed by the electrical, mechanical, and chemical lithography technologies used to manufacture, in very high volumes and speeds, these devices. This may be a topic for one of your future videos. For now, thank you for highlighting a few of the pioneers that built the world as we know today.
Checkout technology connections he did a whole series on this its brilliant
He is absolutely amazing. I highly recommend anybody with even a slight fondness for CRTs, television, laserdisc or video tapes to check him out on youtube. He has really good videos on CDs as well, all with in-depth explanations. One of my favourite youtube channels.
They are to some extent complimentary to each other. This veritasium video shows more hardware.
Link to said playlist:
ua-cam.com/video/l4UgZBs7ZGo/v-deo.html
isn't one titled "these are not pixels"?
Great Channel, you took the words right out of my mouth!
You might have omitted the PAL part of the television because it would confuse people.
But for the completness:
PAL has a resolution of 625 lines and works at 50Hz (25 frames per second interlaced)
Matt Parker has a good video about why NTSC is 29.97fps ;)
This is the most amazing video i ever saw on UA-cam.Most knowledge i gained through out my education i can never understand concept of video.
What a great informative video, i really enjoy that, i give you 10/10 outstanding,
That is so cool :D
Just a quick note though, I think the animations showing magnetic fields deflecting the electron beams are inaccurate. The Lorentz force is perpendicular to the field itself, so a vertical field produces a deflection in the horizontal plane and vice versa.
Tim Hunkin did a series called The Secret Life of Machines way back in the 1980’s, he covered Fax machines, TV’s and videos in various episodes.
I’d recommend watching them, they’re all on You Tube.
OMG!
Where have you been all my life ?
Dude, I'm 30 and starstruck .
Back in the 90's we had a cathode tube one. This video is so meaningfull and relevating to me. Imagine our grandchildren accessing this clip in 2050's , using some Cerebro-ish implants to their cortex, having it projected to the retina.
Sheeeesh! See yall in the 50's, folks!
Stay safe! Thank you so much for the effort of putting this together!
My grandfather invented several electro-mechanical and electrical image transmission devices. These did not become the modern television, but looking at his patents makes for fascinating viewing. This is a neat video. Thank you.
When I grew up I begin to realize how small 100 years really is. I lived a third of it already. Just imagine 1919 year is a year:
• Albert Einstein was 40 years old and his theory of relativity was 4 years old;
• Orville Wright was 48 (unfortunately his brother died in 45) and theirs first flight was 16 years ago;
• Henry Ford was 56 and his Model T was 11 years old;