Transverse Waves (1969)

[@davepost7675]

Seeing a Fran video show up on my KZbin page reminds me of being in school and walking in to see a projector set up. Thanks!

[@WDCallahan]

EXACTLY!

[@mrbigfellanz]

My dad was a civil engineer. I used to play with wave tanks and other cool stuff in his Uni based Lab. Thanks for the memory.

[@alpcns]

You're a treasure trove of wisdom, Fran! Love this old but excellent material.

[@hochhaul]

Fran these old videos are great. Thank you for sharing them.

[@Tamhvm]

Wait, wait... I'm LOOOVING the sticker (or card) in the film box: "Inspected by the latest electronic equipment but I still make all necessary decisions. If either I or the machine goofed, and this film wasn't satisfactory, please yell." Kinda signed by "D." Wow, that is incredible. "Please yell"? Amazing.

[@xjet]

Funny you should ask but I built and used a wave-tank about 15 years ago when refining some of my pulsejet engine designs. Very handy things indeed when you're studying wave propagation.

[@KeritechElectronics]

Nicely demonstrated physics :) And shows the basics of optics pretty well, too!

[@chrisa2735-h3z]

I love the imperfections like the crackles, pops and the scratches on the film! It’s so nostalgic and beautiful!

[@ScottfromBaltimore]

Garden of learning, this channel.

[@whuzzzup]

Damn that water demonstration with the lense is genius.

[@krapart]

This is freaking rad. I love everything about this. Thank you so much for posting. I know its quite the process.

[@mrfranksan]

Very colorful. The narrator is a real charmer.

[@RichardRitenour0522]

Lovin' the science Fran and the nostalgia is heartfelt :) I remember those days back when it was more fun to go outside than to sit inside because the world was at your fingertips and as real as it gets. It makes me sad that the majority of youth today have not experienced this and the mind opening freedom it brings with it.

[@TheOpticalFreak]

I love These old demonstrations! 🙏😃☺️♥️

[@chrispeoples4606]

My physics classes used to do ripple tank experiments until all the equipment bit thge dust due to old age. I think it was purchased when the school opened in 1959, I arrived in 1996. In lieu of experimental time, this video will help, thanks Fran!

[@Dingomush]

I’m loving the old film festival.

[@rondennis5120]

I'm so happy you found another lab.

[@Wolfie_Rankin]

Fran, you probably know this, but I once asked why old films have that circle we often see in the top corner. And was told that was a deliberate mark that the projectionist watched for. When he saw it he'd start the second film on the second projector so it would appear to the audience that there was no break in the program.

[@glennstasse5698]

I couldn’t help wondering if the sub-surface shapes could be used to lessen coastal erosion.

[@tinyderppotato5410]

ooo, I love these trips to the archive!

[@filmrullen]

I feel like there is a formula missing on screen at 8:03 and 9:02. Could it be that this film was displayed in a classroom setting back in the day and the teacher was expected to have a second projector ready, like a transparent foil overhead projector, to display the formulas while the film was running?

[@tommo4k]

I wonder if there was supposed to be equations on screen during those sections where half the screen is black.

[@_N0_0ne]

Thank you kindly ✍️

[@reynaldolunajr.6909]

Great film. Are there and films that delve into transverse waves in audio?

[@MrChief101]

Looks like me doing the dishes. Mighty nice one, Fran. Is it just me, or does it look like that at about 7-ish and 9-ish, where they ran a half-screen shot of the phenomenon, that they should have had the formula displayed? And with the measurements inserted into the formula. Maybe ran out of funding... ? Didn't have access to animation... ?

[@MAGnetICus_Attractus]

Love it since I have been playing with waves and water.

[@yardleybottles6025]

Great video! Thanks, Fran!

[@Hilde_von_Derp]

Love this, just a hop, skip and an impedance matcher to RF waveguide engineering from here!

[@juststeve5542]

These are great fun! I was wondering why an Aussie was doing the voice over for a US university film.

[@agt_1]

In the end credits you can see that this was actually produced in Australia.

[@juststeve5542]

@@agt_1 yeah, I saw that. It was just a bit of a surprise to hear an Aussie accent right after a US university

[@agt_1]

@@juststeve5542 Oh right yes. As an Aussie myself it was a (nice) surprise to me to hear an Aussie voice pop out in the context of a Fran film.

[@noahderrington5156]

Love these films

[@CARLiCON]

sound, light, energy, it's all waves...everything is waves!

[@lidarman2]

This is awesome. Be cool if one could somehow incorporate a pendulum or something to demonstrate nonlinear up/down conversion.

[@pdalko]

Good one 👍

[@realcygnus]

Old school 👍

[@demurets]

I'm an 'Ossie' and I love this stuff!!!

[@asn413]

say fran? do you know of any resources for school filmstrips? I have a major bucket list item to finish one i was never able to finish (not enough time in weekly school library visit.)

[@matthew.datcher]

The waves in this film have a definite early 60s Dr. Who vibe.

[@FoamFlyinFool]

OMG KEEP THEM COMING

[@ziggyinc]

Have you ever looked into Amateur Radio?

[@patricklozito7042]

The way I learned it in high school, 1962-1966

[@johnhaller7017]

Bewdiful!

[@Decco6306]

I always thought the red and 'green/blue' effect of the old videos was kinda cool. its almost kinda like i can tell what color things are with out really seeing it.

[@melody3741]

Aso how do you get the sound???

[@MD4564]

An Australian Film ! :)

[@KeesHessels]

super idea to post these vids...

[@SlyPearTree]

Reminds me of high school physics when we studied light using similar setups. In College we used lasers instead of water.

[@Pants4096]

I really miss film strips in school.

[@ProperLogicalDebate]

Think of a HF RF transmitter or receiving antenna like a Refractor Telescope.

[@flymypg]

The voice sounds a bit more like Mr. Howell from Gilligan's Island, better known as the "Boston Brahmin" accent. Not terribly far from Syracuse University's location in the middle of New York State.

[@fredknox2781]

Perhaps, but at 10:15, the film specifically says Australia.

[@bobpockney]

Takes me back to my physics lessons at school. Great fun messing with a ripple tank.

[@OzGecko]

To my Australian ears it sounds like the Cultivated Australian accent, owing something to Received Pronunciation but definitely Australian. The General accent (Hugh Jackman for example) is broader than this and the Broad accent (think Steve Irwin) is way past that :)

[@x64600]

Could be John Blackman, An Australian radio personality voice artist who started his career in 1969. Likely just thinking about a known voice of that year though.

[@stanleydenning]

It's all just basic physics. Interesting though. Do you know the publication date? I'm guessing the late 50s.

[@spagamoto]

copyright at the end says 1969

[@ianforfun1]

Exactly the same principles apply to air which is invisible unless you add say smoke but in acoustic settings, we hear it! Don't you just love science? Nice video. next!

[@hadireg]

👍👍♥

[@madscientist5969]

Upon refraction, we all change direction...

[@_BangDroid_]

Reminds me of bath time as a kid lol

[@panther105]

Used the exact same apparatus in Grade 11 Physics ...

[@bradleywardiv7657]

How awesome would it be if we could collaborate on a guitar pedal.

[@goodcitizen]

\lambda = wavelength {v} = velocity {f} = frequency

[@WatchingDude]

The announcer sounds very Australian to me.

[@frankowalker4662]

I didn't understand any of the maths involed. But very pretty patterns. LOL.

[@markissboi3583]

waves no waves 🙋‍♂

[@deandee8082]

welp wait a minute, it doesn't just come from the wind, it comes from tidal lock and temperatures, jet streams or shipping lanes if you will there are constant currents in the oceans, there are 2 slack tides daily, that's when the oceans are at their calmest near land, and out in the middle of the oceans.. think of it this way, take a 5ft x 5ft square pool 4" deep then lift the pool at one corner a few inches, then go to the opposite corner, then stop for a few hours, that's what the oceans are doing, why tides go in and out, the ocean water is being pushed from one hemisphere to the other constantly back and forth.. of course depths account as well.. add fierce winds, changing temps it compounds this action, but its mainly tides that do most of it in the middle of the oceans and crashing onto the beaches, top your square pool at one corner then a second later the next corner, note how the middle of the pool the waves collide and get larger.. that's whats happening in our oceans.. this is extremely old knowledge apparently..

[@davegtar]

SCIENCE!

[@Wolfie_Rankin]

I know that voice, sounds like an Aussie newsreader.

[@Lethgar_Smith]

" Look at these waves and think of their pow -eh " "Notice the disturbance moves across the surface of the wat -eh"

[@Liofa73]

He's Australian, what do you expect? You want everyone to pronounce words in 'Merican?

[@_BangDroid_]

@@Liofa73 I think he was just playfully commenting..

[@arthurgarthur]

The viewer needs to read too much into what is happening. A nice vintage video. Good use of simple tech. But, needs to walk the viewer through the action more.

[@d00dEEE]

Fine, fine, v=nλ... Tell us something we don't already know.

[@kc956y]

SU MY HOME TOWN

[@demurets]

What is 'Lambda'?????????????????????

[@martindejong3974]

wavelength (lambda is a letter in the greek alphabet)