Professor Eric Laithwaite: The Circle of Magnetism - 1968

blogs.imperial.ac.uk/videoarc...
Professor Eric Laithwaite (1921-1997) of Imperial College London demonstrates some of the most difficult concepts in electricity &​ magnetism.
This is one of a series of 16mm colour films made for schools. They were all made in Eric Laithwaite's "Heavy Electrical Laboratory" in the Electrical Engineering Department at Imperial College London.

[@mavos1211]

Learning more in just under 20 minutes than I did in 2 years of GCSE science! Great visuals.

[@johnhammer8668]

60's was really a special time. Lots of interesting people and interesting ideas

[@EletrikRidesAgain]

This guy had a real talent for conveying information. Some really cool concepts explained, and I can see a lot of potential applications.

[@pebre79]

This video is a gem and Prof Laithewaite is a master educator

[@frazeralexander7420]

i wish this guy had taught me

[@steventhehistorian]

please tell me there are many more recorded lectures from this man. What a wonderful lesson! So insightful!

[@franktuckwell196]

If Eric Laithwaite had taught at my school, i would have listened to every word as opposed to my school report which states : "If he spent more time actually working, rather than looking out of the window, he might have something to show for his time at school".

[@gtrman9706]

The man was a genius !

[@terranceparsons5185]

Takes me back to the 1970s and the Royal Institution Christmas lectures.

[@redlunch]

his gear is so awesome. everything was cooler in the 60s

[@thrunsalmighty]

Professor Laithwaite spent a lot of his life advocating Linear Induction motors (like the travelling aluminium sheet) He spoke of the bed as carrying a magnetic river with (if I remember correctly) a tendency to keep the sheet on the bed as it travelled along. I am not sure how this is related to the idea of Maglev trains, which are with us. But in my books, prof Laithwaite is an unsung hero. And if we must have HS2, at least let it be a Maglev.

[@benjaminfowler3532]

Literally perfect analogies

[@CH-pt8fz]

This is how our lectures were, and the key was they had on the most part seen nation service and been in industry before going onto higher academic achievements. Good days and you had a quick pint at lunchtime before afternoon lectures. Lol

[@andrewmanrique5759]

Absolutely love Eric!!!! I absolutely wish I could have sat and picked his mind.

[@Planes9905]

I love he gets a big smile on his face when he says "Magneto Hydro Dynamics." The iron coil and magnetic flux bit must be the basic theory behind wireless battery chargers I assume?

[@Michael-tq6xm]

Rejected as a heretic, I hope they build a statue for Eric. The military and transport now use the technology he was tinkering with. Rail gun and high speed trains that levitate.

[@frazeralexander7420]

rolled up into a tube 15.21......the large hadron collider

[@crossbones911]

ha that's so cool. I love these videos they always leave me smiling like some kind of idiot

[@wesleymercer7496]

Thank you

[@BryanBarcelo]

Good stuff!

[@bad71hd]

We sure came full circle in the circle of magnetism!

[@tarzan1638]

Amazing!!!

[@Snailmailtrucker]

Great stuff...thanks !

[@daydreamer05]

He didn't get this knowledge from books, he got it from nature.

[@stevenhalliday7297]

i get the feeling John Hutchinson has watched this video.

[@1MCFOX1]

wow thanks

[@daniellybaert1958]

Very interesting stuff, it would be nice to teach again this way, bud probably to expensive !

[@ChristopherbergII]

o sorry i forgot to thank you for posting this thank you

[@x2malandy]

Man this guy is/was good.

[@SauceDaBoss1]

Wow!! wireless charging invented in that time..amazing

[@alejandrotrujillo8146]

no fear of mercury

[@jackdwayneharper]

Eric was a very smart and logical man. He was observing the effects of the ether circulating in both his electromagnets and his famous gyro demonstrations. The fact that all matter interacts in the high density energy field called ether was just outside of his understanding. I believe that if he had lived longer he would have made the connection. God Bless Eric Laithwaite!

[@carmageddon83]

They obviously didn't know too much about Mercury back then.

[@freekingawwsome]

Wow I've seen these magnetic guns or rail guns . And this technology has been around since I was three . I am also learning about electricity

[@rh5563]

👍👍👍

[@DuardoEh]

Correction? The little piece (shim) of steel at the 5 min mark was not a magnet, therefore its domains would align/adjust according to the local magnetic fields. Orientations of one shim to the single magnet were s-n:N-S but when the steel was placed between both magnets the orientation became S-N:s-n-s:N-S. The shim did not become a magnet, especially not a N mono-pole nor an extension of the first magnets' N pole as implied in the demo. Next, the two steel shims oriented S-N:s-n : n-s:N-S and therefore both magnet-shim combos repelled each other from the n to n shim interface.

[@dylanwaters4883]

He did say that when attached to the single shim that the two magnets were trying to pull the shim into two pieces. So he kinda explained what you are saying. But thank you for typing out how the poles were working it made it really easy to understand!

[@frazeralexander7420]

you can make electromagnetism do anything that anything else can do......the virtual universe 16.21

[@ericlee9146]

But aluminum is not magnetic So how can this be

[@georgeponiris9525]

Who in the hell dislikes this