Much yes. Tetris man.

Dang, seems like he's doing so well. And happy. It's really hard to ignore his eagerness.

Wow this guy's passion is infectious!

@VanderNugget

4 жыл бұрын

Nonofya Bidnez Yes, if anyone wants to see what it looks like when a human has figured out something fantastic, it’s just after 8:00.

@appleslover

4 жыл бұрын

@@VanderNuggetyeah, more infectious than the coronavirus ..

Who else wants to hear more about the AI James used?

@Ceelvain

4 жыл бұрын

I want to hear more James. He's so passionate. That's what make things interesting.

@slpk

4 жыл бұрын

I hear a computerphile video coming...

@zanshin720

4 жыл бұрын

Yes sir! I can't wait to see what the A.I and James has created!!! So exciting!

@AdrianPardini

4 жыл бұрын

Count me in.

@nbme-answers

4 жыл бұрын

design is likely owned by the corp but would love to hear him talk about it generally

Wow its been a while since James has been in a 'Brady' video! Overdue indeed.

James' story is one of the most inspirational I have ever heard of or watched. The videos on him years ago are in part, what got me to go back to school (part time) in 2016. I am starting Calc 3 on August 20th, Tuesdays and Thursdays from 4-630pm. Yes, his story had something to do with that. :-) I think we all would love to have more videos with (now) Dr. Clewett!!!

@lemonflavouredtnt6969

2 жыл бұрын

How did it go?

@StreuB1

2 жыл бұрын

@@lemonflavouredtnt6969 I passed with a B. It was the most difficult class I have taken, but it was a class where I learned the most and had the most fun. 🙂

@lemonflavouredtnt6969

2 жыл бұрын

@@StreuB1 well done, glad it turned out well for you

@StreuB1

2 жыл бұрын

@@lemonflavouredtnt6969 Thank you!!

@shantanubharvirkar7759

2 жыл бұрын

@@StreuB1 LESS GOOO!

Pffft. 10'000 volts? What's so impressive abou- Wait, did he say AMPS?

"Large banks of capacitors which is..... storing huge amounts of energy. There's 9 kilojoules of energy in this machine." Sticks hand in machine seconds later

I'm so glad James is back, and of course he is doing something that makes him so happy and excited. More please

I love how excited he is about his career.

It's great to see James again! Would love more videos from him...

this guy's excitement is contagious and makes learning a pleasure.

I want to see that crazy coil design, or how can something seemingly so simple as a coil have a complex design.

@crashfactory

4 жыл бұрын

Agreed!

So wonderful to see more work by James. would love to see more about this project.

More James!? Its been so long, so happy to see him again

One of my favorites, awesome to see James back !!

Great to hear about James!

Any time I hear someone use the unit kA in a video, I know it's going to be interesting.

Pure passion, even after years. Most impressive results. Awesome.

congrats to this dude that he achived all he wanted later in life, remember his first vid

damn i missed this guy so much, he's awesome

More James, please.

Yay, James!

A new video with James Clewett?!?!? SWOON! ❤️❤️❤️

Now that is really useful application of a PhD...and the owner of it is quite a genuine character no misapplied attitude or altitude just nice communicating skills. Well done for the whole interesting package. This is what “communication exchange” is all about.....And exactly what I look for Auto-didacticly when Applying My Perception Awareness expansion acquirement skills. RDR

Yay! James!

Wow I am so glad to have stumbled across this, so very interesting, I want more like this!

very clever and interesting bloke

what's up bro, welcome back. happy to have you. :) I forgot I subscribed to this channel! I even hit the bell at some point lol

@nottinghamscience

4 жыл бұрын

:)

He's back!!

Blimey those capacitor banks are somewhat frightening to think about.

@ElectricityTaster

4 жыл бұрын

Don't worry, it's running Windows XP.

My man Clewett, Brilliant! Always interesting....

Boy I've missed this guy!

He has such a magnetic personality!

@Shadow81989

4 жыл бұрын

I find him rather polarising...

Outstanding

His job is awesome.

I've been asking myself where is this guy after the PhD video, finally he is back.

I used to work for a calibration lab, and we'd often get Hirst gaussmeters to certify! Super cool knowing James was there all along :D Relative to other gaussmeters, Hirst seemed to be the most accurate although the user-friendliness could be improved. And if anybody reading this ever buys one...take the CD out of the case! I had to explain to like, three clients that I smashed their CD's because they'd get pressed against the zero block when you closed the lid :(

JAMES! I remember when you got your PhD I was so happy!

Dayymm there's some huge Capacitors in this video. You could do some seriously dangerous fun things with those!

He is bacc.

10-20 kA... eh... just keep the side panel off so we can get in there to fiddle... my kind of shop! :)

That intro was savage!

James!

Lovely

10:10 Neodymium? Not a ferrite loudspeaker magnet? I may be nitpicking here but come on. It's a silly blunder to make. Meanwhile, I'd love to hear him speak about programmable magnets / polymagnets.

@selfhealing1047

4 жыл бұрын

Yep you got it right Simple ferrite speaker magnet

thanks guys, i missed James dearly (still waiting on another prof. Roger Bowley video if possible, please sir)

I've waited years for this video

@nottinghamscience

4 жыл бұрын

Hope it was worth the wait! :)

I understood maybe 20% of this video but I enjoyed it immensely.

@551moley

4 жыл бұрын

Not sure I got into double figures!

The thing on the cupboard at 10:10 is not a neodymium magnet! You would not even get it off the metal by hand probably. The black is a ferrite magnet, and it seems to bee a loudspeaker magnet with a strong field across a small gap for the moving coil of the speaker, on the other side.

@CrepitusRex

4 жыл бұрын

What he 👆 said!

Oooh it's been so long!

Physics daddy is back!

James reviving the channel?

just some small scale testing here.. James and the teams next magnet is the earth.

How do you release all the energy from the capacitors? Do you use a high voltage high power thyristor?

guess he was attracted to magnets.... hehehhe

@2nd3rd1st

4 жыл бұрын

Booo!

@LateNightHacks

4 жыл бұрын

didn't you mean "gauss he was attracted to magnets"?

Reminds me of "Technical Error", a short story by Arthur C. Clarke...

Great video, this is the stuff I wish I had since playing with coilguns in high school, the first time I accidentally "broke", ie demagnetised, a 1 inch neodymium magnet was a revelation and here's the explanation. Wish he'd given stats for voltage, resistance, impedance, etc, to calculate what it could do, and he skipped over the reason for the importance of placing the magnet in the "exact centre." There were no visible security measures like brightly coloured straps across the power rails or metal mesh covers, hopefully they don't actually have it "open all the time" because that stuff'd literally blow your arm off before you could even touch it.

Nice video, will you ever get Markus back on the channel?

That is all nice and all, but has he beaten his Tetris record again? jk, awesome video as always.

"The Chemistry of a Candle" seemed a bit ordinary until Faraday's explanation. Now it's Magnets.

Sir plz explain how to find out pole strength of magnet without machines by think of classic

neat switch: from shaking sand to electroshocking magnets. \o/

Can you use all that big charge to make a permanent magnet and then demagnetise it again?

So I've seen 1F electrolytic capacitors that were scary to be near to and those were only rated for 12V. That capacitor bank is crazy.

Love James and James content... but that 'great hulking lump of Neodymium' was just a ferro-ceramic speaker magnet.

F---ing magnets, how do they work!?

@LateNightHacks

4 жыл бұрын

like a F---ing boss

@theblackbaron4119

4 жыл бұрын

Yeah he needs to have a sit-down and talk to the insane clown posse. Since they missed basic school education.

One question i never found the answer in books or the internet: What is the theorical maximum field for a permanent magnet? (regardless of its composition) And how close state of the art permanent magnets are from this maximum?

@subh1

4 жыл бұрын

Theoretically, I guess, if all the constituent atoms/molecules are oriented such that the unpaired electrons in them point in the same direction, that will give the strongest magnet possible for the material (see en.wikipedia.org/wiki/Electron_magnetic_moment ). May not be too difficult to calculate if you know the moment of individual atoms/molecules, the density of the material, the molecular weight, and use Avogadro's number. Now if you are asking this irrespective of material/composition, I am pretty sure that the answer is that there is technically no limit -- you just pack spin-1/2 particles (which are the elemental units of magnetic moment) more densely in a region of space to get higher and higher magnetic field density. This literally what happens in a neutron stars, although in a neutron star the neutron spins are not all co-aligned, and the insanely high net magnetic fields are probably purely due to the high density (you cannot achieve such high densities with only electrons since there will be nothing to hold the electrons together, nor with protons since the electromagnetic repulsion will be far greater than the weak force interactions). But then of course if you keep packing things more densely, it will collapse into a black hole!

@richardevans3596

4 жыл бұрын

Easy enough for terrestrial magnets. An alloy of FeCo has the highest magnetic moment density, around 2.5 Bohr magnetrons per atom. This works out to a maximum induction of around 2.5 tesla. Electromagnetic fields can now go up to 45 tesla, so much more powerful - but expensive to run!

pretty cool. What magnetics fields does he work with? i dont think he ever mentions the value. Just wondering cuz you can achieve pretty large fields in a superconducting magnet, but im guessing he needs more?

I have never seen a Capacitor of that order, holy Farad

@zh84

4 жыл бұрын

The farad is the largest unit in use, in terms of how large quantities measured in it are that we encounter in everyday applications.

@heyandy889

4 жыл бұрын

Jiminy crickets those are big caps

How do they work though?

Technology cannot evolve ... until we first evolve ourselves

5:48 so if it's not shielded properly it would just send a massive emp out that would probably disable a lot of your equipment.

At last!!! The real life Tony Stark ⚡❤🙌

I think the efficiency gain he was talking about should be in motor/generator magnet usage. The efficiency input to output may not be significantly increased, but the size of that machine, or the number of permenant magnets needed could be reduced.

More like Dr James Clewett

Can we get more about those "beefy switches" for >10kA? IGBTs maybe?

Been a while since the last post on this channel

Wait, did he say that backing on the speaker magnet there was neodymium?

Wow 11 months later

Why is there a loop at the bottom of the graph?

"Yeah so this small futuristic machine kicks out about 8 Tesla" meanwhile Windows XP running on monitor in background.........

He is back 🤓

Exeter... Cornwall?! Heresy!

Excuse my ignorance ,I wonder if anybody can help me out here.I am making magnetic e-bike battery mount and wonder ,if thickness of metal mounting plate would affect the magnetic strength.Steel mounting plate+ build in magnets in the battery.Thanks

Fun "We keep the system open so we can get access to it all all the time, oh and here we have capacitors (that will fry you if you are not careful) ha ha "

@RobinHagg

4 жыл бұрын

Love the video

Watched the applied science video Just a few days ago.

At 10:10 he says it's neodymium. Why does it look so much like an ordinary ferrite loudspeaker magnet? It certainly came of the metal door with the ease of a ferrite magnet. Can someone at Nottingham please check the facts?

i guess you can have computers in a magnet factory so long as you move them around verrry slowwwwly?

With a wooden/ fabric tape measure!

How long do these guys live?

I wonder what Mike from Mike's electric stuff would do with such a large capacitor. He'd probably upgrade his destruct-o-tron I guess? Not that it really needs it if you'd ask me but to some people there's no such thing as overkill.

Hey look, it's James!!! I was always hoping he would show up again just to see how he's doing. P.S. Still looks as sleep depraved as he looked back then. James, get some more sleep mate. Most recent studies show that sleep deprivation can be very damaging in the long run.

With a ruler.

re title: With a ruler?

No one tell him about Jevon's Paradox. :(

i always assumed that magnets are made by cooling them below the curie point whist in a magnetic field. didnt know they pulsed them cold.

@Markle2k

4 жыл бұрын

That's how duplicator machines for magnetic tape storage media work. You have a metal master tape that runs continuously in a loop and then in a short section you bring your target tape close to it and zap the tape with a laser to bring the magnetic particles of the target tape up past their curie point. The target cools below the curie point and retains the magnetic field from the master. And then the target leaves and gets wound onto a spool to later be cut into sections to be loaded onto cassette reels.

Glad to hear him talk and be stoked about reducing CO2 emissions

Ten minutes ago I thought: I wonder how that tetris-guy is doing. James something. I think I'll give him a search. And what do you know. New video a few months ago.

Magnets: Better than trees.