EEVblog 1577 - History of Television & Cathode Ray Tubes with Kathy Loves Physics

[@TimSavage-drummer]

Love Kathy's channel. Her excitement of the topic and story telling is infectious.

[@hendryborn135]

Wonderful, I enjoyed every second of it, The energy of the whole video with Kathy is so lovely. Thank you so much Dave and Kathy.

[@ts3787]

Just subscribed to Kathy's channel. Kathy has no filters, you gotta love people like her.

[@BrandonPoulton]

So incredibly inspiring!!! Thanks Kathy for sharing your passion with us!!!

[@InssiAjaton]

In my youth, I got a number of times an X-ray check for my chest. Once, or maybe twice, I was part of a general population check with film that went somewhere to be reviewed by real experts, and then archived somewhere. Then once I got new shoes, and how they were fitting, was checked with an X-ray viewer right at the shoe shop. The next time I needed new shoes, the word about X-ray harms had spread even to the most remote ends of the "civilized world". The machine at the shoe shop was locked up as dangerous.

[@VintageElectronicsGeek]

Enjoyed this immensely. Philo T. Farnsworth is a cousin....there is a PTF museum in Utah. ~Jack, VEG

[@rickarmstrong4704]

Thanks Dave & Kathy Quite Enjoyable this was! Cheers!!! from Canada

[@EEVblog]

Thanks!, much appreciated. Glad you enjoyed it.

[@flymypg]

What a storyteller! Favorite Amp Hour so far.

[@davidcole6236]

Dave: Around 1:08, you say Bob Pease worked at Philco. Close, but no cigar. RAP worked for Philbrick Labs, the place that made operational amplifier modules, originally using vacuum tubes, and later solid state, and other parts for Analog computers. Phico made semiconductors, radios, televisions, and other equipment, and was part ofFord Motor Co.. Sorry for the correction... Cheers, Dave

[@calholli]

I listened to this whole thing at 2x speed. It makes her sound even more enthusiastic and urgently getting the story out. It's the perfect speed to watch this. :)

[@Kathy_Loves_Physics]

OMG I cannot imagine it. That is hilarious!!!!

[@joekenorer]

She knows so many names, an real oracle of electrical engineering history. People that can carry information like that are important to society, she's a gem.

[@edmaster3147]

I have so much enjoyed this vid. I hardly realise that inventions often are the result of stumbeling forward and that it ain't stupid just trying and trying over again and failing every time again yet learning stupid things by just looking what happens. Keep 'm coming Dave :)

[@lmiddleman]

Glad Kathy is self-aware of her frequently dodgy details, but her popular success just goes to show that enthusiasm goes a long way.

[@CarlVanWormerAE7GD]

Didn't Pease work for Philbrick (not Philco)? The Pease book is "How to not drive into accidents - and how not to".

[@EEVblog]

Oops, you are right!

[@InssiAjaton]

Yes, Philbrick. And then at National Semiconductor. The other guru, whose funeral Bob Peace was returning from, was Jim Williams of Linear Technology. Jim had an MIT lab background - no official credentials...

[@SkyhawkSteve]

It was good to hear Bob Pease mentioned. Like Dave and Kathy, he was a great communicator and very entertaining! Bob's death was a great loss to the electrical engineering community. One detail of his death... that he died when his VW Beetle crashed into a tree, IIRC, was tragic. He loved the Beetle, if memory serves, and I assume it was because it was a nice piece of engineering. It was as simple as possible, fairly easy to repair, and presumably has some sentimental attachments. Unfortunately, it lacked nearly all safety features found in a new car of era when he died. I still treasure Bob's guide to troubleshooting, his app notes, magazine columns, etc.

[@InssiAjaton]

@@SkyhawkSteve I have probably all of his books and a great number oh his magazine articles that I regularly peeled off and saved. I also remember the circumstances of his VW crash - almost certainly have a clip of that also saved. I don't know of the present KZbin availability, but Bob used to appear there as well, in some sessions with his magazine articles editor. Oh, I also have a photo of him and myself in a lecture he gave once in NC.

[@SkyhawkSteve]

@@InssiAjaton That would have been fun to see him in person! Such an interesting guy.

[@minusvanbaalen]

More of this please! Take all the time you need.

[@longjohn526]

My Mom motivated me when I was a boy ...... "You better get that put back together before your Dad gets home from work" ..... There was no better motivator in my family than fearing the wrath of the old man .....

[@jeremiahbullfrog9288]

OMG i love her history lessons, great collab thanks

[@Farm_fab]

I live not too far from the former RCA plant where they manufactured CRT tubes, and I actually did security for them at one point, back in the day. The company was bought out from RCA, by Burle industries, where they made motion sensor lighting and surveillance camera systems, which were previously designed by RCA. This plant was established by the US Navy for communications equipment for the war effort such as vacuum tubes and whatnot, but is now just a shadow of itself as they are now just a business park. Some of the cameras they developed were used in satellite technology.

[@quantumleap359]

The love story of the Curies could be titled "50 Shades Of Green"! Great radium tie-in ha ha

[@ghlscitel6714]

In Germany, we call the cathode ray tube "Braun'sche Röhre" (Braun tube) named after it's inventor Dr. Ferdinand Braun, Noble laureate in Physics. He made his first function prototype in 1897.

[@mred3867]

This woman is fantastic, thanks dave for the great work.

[@morksbeanbag]

Never heard about Kathy before, her enthusiasm is wonderful!

[@Distinctly.Average]

Really enjoyed this one. What amazing energy and enthusiasm for the subject she has. Hopefully it will not be another year before you get together for a chat.

[@thomasunsworth425]

This chat was just so good. Kathy was brilliant and funny.

[@pa4tim]

Farming also worked for Newton :-) Pease drove back from the funeral of Jim Williams

[@jassenjj]

I really love it when 2 of my favorite youtubers unite to surprise me like this. Kathy's enthusiasm is so contagious. Love you guys!

[@jkobain]

You're so cool, and this hour with you I spent in a blink of an eye. Thanks a lot!

[@jmcarp0]

Really great! fantastic, thank you!

[@azza-in_this_day_and_age]

what a plsasurable watch this was, thanks all

[@unrelatedactivities]

That was really nice, thank you.

[@martin.pokorny]

Brilliant! Thank you!

[@kissingfrogs]

Love the conversations with Kathy. Nicely done Dave.

[@SurpriseFox]

The title was cut off perfectly by KZbin, I was hoping it was Kathy Ray

[@Pippo.Langstrumpf]

Mr. Ray Tubes was one of my favourite professors at university.

[@SoundsLegit71]

I have a couple early Farmsworth night vision photo multiplier tubes and the box I forgot the correct name for them. i think there ww2 era. I was able to power them with one of those ebay shock taser things. The phosphorus screen is about one inch in diameter I used a kodak lens in the front and back, welded up a stainless 2inch exhaust pipe with a handle for them, a lipo in the handle. I used about 25 5 meg ohm resistors in series to drop the voltage for the different grids. The one is quite clear. There are similar tubes on ebay from time to time.

[@redsquirrelftw]

That was great, she sounds like someone that would be fun to hang out with for hours at a coffee shop and get into the most random topics and tangents.

[@erikburman530]

I wish I could give this One Bajillion-million-zillion thumbs up!

[@mrdsn189]

That was wonderful!

[@danielaustin7643]

I grew up right next to Alexandra palace in north London where the BBC made the first regular "high definition" television broadcast was made in 1936. a piece of history indeed

[@milantrcka121]

Great Bob Pease died in a crash of his VW driving back from the funeral of the legendary Jim Williams.

[@harriehausenman8623]

Brilliant collab! so fun to watch 🤗

[@jasonbrindamour903]

Fantastic episode Dave!

[@oglordbrandon]

Love to see Kathy getting more play.

[@Wtfinc]

What an inspiring Amp hour.

[@hughgilbert390]

One of the things Zworykin contributed to television was the iconoscope tube that was much more light sensitive and detailed than the Farnsworth image dissector.

[@adamstarr9369]

I believe it was my great great grandfather, John 'Logie' Baird who invented the first analog television in Edinburgh.

[@EEVblog]

That's what Big TV wants you to believe.

[@TheManLab7]

1:58 Well John did built the first TV and the first electronic TV was a Japanese bloke who the farmer stole the idea from as SanFan is on the same coast as Japan. You've said it yourself Dave. All the best stuff is made in Japan.

[@adamstarr9369]

@@TheManLab7 yes, it was Kenjirō Takayanagi who based his television off Logies model, but instead used a CRT to display the signal. That being the first electronic television. Allegedly several months before Philo T. Farnsworth in San Francisco

[@T2D.SteveArcs]

Baird invented the first mechanical TV...

[@adamstarr9369]

@@T2D.SteveArcs mechanical/analogue, same same. Like an analogue clock as to a digital.

[@lesh4357]

JJ Thompson at Manchester Uni appears as an "also ran" character in this (not even appearing in the written list of names). Odd, since he was awarded the Noble prize for his work - working out what was going on with cathode rays - discovering the electron in the process.

[@slartibartfas0428]

WOW, Kathy's style of telling the whole story of history is *amazing* ! I've never heard any story of history in such an interesting, such a thrilling but still totally truethful way, especially respecting that whole talk was "out of the back of my mind".... So cool. THANK YOU for that AmpHour talk! ❤👌👍And - PLEASE, don't make it on yearly base. You can make it MONTHLY! 😉

[@joehopfield]

She's delightful, fun topic.

[@WereCatf]

This is the first Amp Hour that I've watched, because the ones I've tried before turned out rather boring, but this Kathy person, oh, she's wonderful to listen to!

[@Kathy_Loves_Physics]

Thank you!

[@tgirard123]

That was a nice chill hour. Especially after Dave's rant on BS solar electricity crap, which I also love...

[@Taran72]

Loved the podcast! I learned so much from both of you.

[@HectorLopez-jw2ke]

She is amazing.

[@petersage5157]

Alec of Technology Connections did a great series on the history of television, including its invention and precursors like the Nipkow Disk. Presumably, the fields (or were they waves?) of grain that led to Philo's idea for a scanning electron gun is why interlaced video is still said to have fields. Good call regarding Halloween guising. It seems the liberal media has recently picked up on the old saw about an old Germanic and/or Celtic tradition, but there's no credible evidence of it outside of America before the post-war era. Maybe you could tackle Christmas next? The whole excessive gift-giving thing actually started as a means of kick-starting the economy after the Depression.

[@oraz.]

Yoooo Kathy is the shiz-nit. She is awesome. Her videos on math history top stuff.

[@Stefan_Payne]

PRO TIP, if you don't have Ä, Ö, Ü, you can also do AE, OE, UE. Nice video!

[@ERKNEES2]

Awesome!! Great info

[@reedreamer9518]

I'm listening to the Amp Hour on my home-built audio amplifier!

[@oOMonkeyMagicOo]

Surprised at Aussies not doing Halloween considering its Irish roots. Guess the problem is confusion between Halloween and Trick or Treat!

[@DishNetworkDealerNEO]

Before the X Ray Films, they had the Floroscope.

[@amrishhirani6096]

Happy Christmas days

[@daveturner5305]

Back in the 50s & early 60s I remember foot X-rays in Timpsons. A well known shoe company in the UK. I was upset when they were banned. Nowadays, of course I understand why.

[@KeritechElectronics]

Physicists used to have guts... Sabine Hossenfelder, be like Gordon Freeman! Fascinating talk, Kathy definitely gets knowledge across :). Physics romance books, eh? I'd try some.

[@TheManLab7]

They definitely need to make a blockbuster film about Marie Curie. Just like they did with Bob Oppenheimer.

[@petegaslondon]

Yeah - he's the BOMB And SHE has this certain GLOW about her ;)

[@samuell.foxton4177]

they did in 2019, she was played by Rosamund Pike

[@joehopfield]

Human vision can detect single photons!. 2016. This conversation is a blast!

[@W4BIN]

Excellent show. Ron W4BIN

[@magicphred]

Does anyone else remember that the TV Engineer who ended up being an alien in the move "OHF" was named "Philo Farnsworth" ?

[@electrotsmishar]

"....Can you please make sure everything works????" 😂😂🤣🤣🤣

[@ElectricEvan]

My mother remembered x-raying her feet.

[@redsnappa7837]

it's almost as if she doesn't know the BBC started broadcast television experiments in 1927🧐

[@ThatGuy-ht9sp]

And THAT is how you make an intro :D :D

[@porterwake3898]

Any mention of JJ Thomsen?

[@johnstewartrichards5922]

On the 7th day God rested and Christ you could see for miles! Big Bang said, No. I was first and the Universe is still expanding ; )

[@imranahmad2733]

I thought it was John Logie Baird that invented the television

[@petegaslondon]

Thats what THEY want you to think :) Well, his one wasn't 'all electric' for starters, it was the Spinning Disk type...

[@AlienRelics]

He invented a mechanical scanning television. Not very practical, sadly. Others also worked on mechanical designs. Farnsworth's design for an all electric television was the first practical broadcastible signal, as I understand it.

[@benespection]

No one person "invented television" - just as no one person really invents anything. People love this lone inventor myth, but it's simply not true. Logie-Baird (Scottish) is documented as showing the first demonstration of television, but it was mechanical. It was based on work from Nipkow (German) who came up with a method of sending images over wires using spinning discs. Zworykin (Russian, later Russian-American) worked on "electrical telescopy" in the early days, and made significant work on electronic television in the early days and came up with many fundamentals. Farnsworth (American) had a prototype of a working TV system by 1927. Add in hundreds of other clever engineers and you get television as we know it. Speculate as you will as to why the history books in the UK talk about Logie-Baird, the books in Russia talk about Zworykin, and the books in the USA talk about Farnsworth, but the reality is much more nuanced.

[@imranahmad2733]

I watched the secret life of machines (television episode) where Zworykin did get a mention about contributing towards the development of television but Farnsworth wasn't really mentioned.

[@mrw6156]

@@benespection Indeed - as a Briton I was annoyed that Logie-Baird wasn't mentioned - even in passing - we know that Farnsworth met him in the UK around 1932 - Logie-Baird was a prolific inventor until his early death in 1946. On the other hand the coverage of all the panoply of scientists and inventors who set the foundations for the emergence of broadcasting and especially broadcast TV was interesting - in the words of Einstein (I think) - they all (Zworykin, Logie-Baird, Farnsworth etc) "stood on the shoulders of giants". This is true of all science and human invention and we would do well to remember that before jumping in the air shouting for our favoured national champion.

[@kissingfrogs]

I was once apposed to Halloween, but then I realised we dont have much interesting of our own going on so may as well borrow from other customs and traditions, Its just a bit o fun for 1 night after all.

[@RichardFraser-y9t]

Don't sit to close to that Crookes tube or you will get round eyes.

[@jonnscott4858]

dare I say our tv is still one of those? scares the burglars off at least.

[@TheCommuted]

Were oscilloscopes a thing before TV

[@catalinalb1722]

I hope will see an episode with Eric Bogatin ! 😊

[@johnwilliamson467]

Halloween is from the pagan festival far from an American original event.

[@AlienRelics]

All Hallow's Eve, I believe.

[@bobweiss8682]

@@AlienRelics Samhain...en.wikipedia.org/wiki/Samhain

[@teenee4]

The end game of the photoelectric effect is photothearpy using bio active wavelengths. Guess who has a 1st Gen photothearpy unit.... me 🎉

[@HectorLopez-jw2ke]

Publish more amp hour

[@okaro6595]

Einstein got his prize ""for his services to theoretical physics, and especially for his discovery of the law of the photoelectric effect". There was someone in the committee who was dead set against relativity so they could not give it directly for it. The prize was given soon after te general relativity had been verified.

[@electronbolt6550]

She never said who and when they figured out they had to put a heater to boil off electrons in the tube

[@cambridgemart2075]

Except the scanning system was already in use by J Logie Baird, so Farnsworth didn't invent it.

[@elHippieSupremo]

So, the Halloween stream has 666 likes...

[@erikdenhouter]

Priceless, every minute of it. Maybe difficult to follow for real newbies, you need to know a bit what she is talking about. Saw a few video's on Kathy's channel, but got annoyed by the waving of her hands. Stopped watching for that, sorry, but in this video she is low in the picture frame, and it doesn't bother me that much. Really enjoyed the look into her soul !

[@erikburman530]

Scotoma.

[@brooklyndrive]

Yes, a scotoma.

[@mimetype]

God bless Stralia from the king of Pomgolia.

[@roberttalada5196]

Oh my god she is a HOOT! 😂

[@ernestbean2998]

Rubbish, John Logie baird come up wth the television Scottish