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Marko

Sun Sept 16 2007, 12:54AM

Registered Member #89 Joined: Thu Feb 09 2006, 02:40PM
Location: Zadar, Croatia
Posts: 3145

Hi guys

I've been asked to collect some videos to show off to students in school.

Not to say how much things I have in mind, but I thought if it would be cool if all of you posted something you find impressive/beautiful/informative.

Now, I thought it would in general be nice to have such things in one place, like ''post your cool pic here'', but for videos, and not only yours but all you can find.

Anything even loosely revolving around realm of electromagnetic interaction is fine (As I think most of physics does) is fine. Analogies in other things are fine. We are going to sort that out, so you guys are pretty much unlimited about topics.

Point is, from lot of videos gathered in a same place by lots of people, it's much easier to pick quality ones.

First thing that shouldn't be posted (OK, or at least warned about) are videos taken from licensed TV programs or volumes. They need to be freeware without exceptions, because otherwise that's Sin of thievery.

Low-quality videos (like filmed 20sec with cell phone on 100*100 resolution) are out of order, as they would spam things up.

Links, uploads, youtube, it's all fine.
For youtube, make sure you post the exact title of the video in order to make it easily researchable, and some broad description is nice too if it's unclear.

As I think, no other rules, Just use common sense.

Better I start posting.. surely some 'classics, although I can google for ages and still not find best things.

- ''IFW-Dresden Superconducting Maglev Train Models'' -from where is this?

- shattering glass with sound, from penguin's lab. One of best I know, so congrats! Now it would be nice if somebody compared it to whisky glass, explain Q factor, etc.

- ''Tacoma Narrows Bridge Collapse'' - Just to show how brpad can you go.. But I can't find 2.nd part!

- ''building a tesla coil'', TC components, very informative, especially for noobs.

- ''Electromagnetic Disc Launcher - Featured on Hacked Gadgets''

- ''FastMHz.com - EM Rocketry 2''
- I hope to find something more descriptive, and maybe more powerful than this..

I badly need some better can crusher and ring launcher videos, I hope you guys could help.
I haven't found a single decent can crusher video yet!

- ''Coilgun - Featured on Hacked Gadgets''
Nice one... there are actually lots of good coilguns, don't know what to pick.

- ''Rail Gun Naval Test Shot'' - again not very informative, and firing at blocks of sand makes it appear weak. I would appreciate any good railgun videos!

- ''1,2 MV Hochspannung 1 Ampere LichtbÃ¶gen''

- ''Arc 500kV World's biggest Jacob's Ladder!''

- ''230 kV Vacrupter Switch Failure''

- ''My lifter 3'' - anyone find a lifter without antigravity BS?

-sonoluminescence - anyone found *anything* about?

For my part, I would most appreciate purposely educational videos. I'l try digging at college websites...

Not to say I need to dig 4hv archives! Videos are hard to find though, and some I tried didn't work.

I've just tipped the iceberg but I need sleep.. Videos are hard to filter, if everyone gave just few good ones it will be a lot! Oh, did I say, your own videos are welcome too!

Marko

Bjørn

Sun Sept 16 2007, 02:25AM

Registered Member #27 Joined: Fri Feb 03 2006, 02:20AM
Location: Hyperborea
Posts: 2058

shattering glass with sound, from penguin's lab. One of best I know, so congrats! Now it would be nice if somebody compared it to whisky glass, explain Q factor, etc.

It is not possible to break undamaged glass like that so it is not a very good demonstration. At least not without explaining how much power is needed to break a proper glass.

Dr. Dark Current

Sun Sept 16 2007, 06:46AM

Registered Member #152 Joined: Sun Feb 12 2006, 03:36PM
Location: Czech Rep.
Posts: 3384

"Resonantie" -resonating board and rice

Ragnarok

Sun Sept 16 2007, 01:37PM

Registered Member #659 Joined: Fri Apr 20 2007, 09:14AM
Location: SW Hertfordshire, UK
Posts: 75

^ Now that is very impressive.

stop4stuff

Sun Sept 16 2007, 04:32PM

Registered Member #64 Joined: Thu Feb 09 2006, 06:25AM
Location: Southampton, UK
Posts: 68

here's my Lego Weight Driven Generator

Tesladownunder

Sun Sept 16 2007, 06:24PM

Registered Member #10 Joined: Thu Feb 02 2006, 09:45AM
Location: Bunbury, Australia
Posts: 1424

I note you couldn't find can crushing videos. I checked my site and the videos were down, which I have fixed. They show an empty can and then a full can being torn apart. No simple can crushing. In fact videos are disappointing because all of the action takes place in 1/20,000th second.
Mikes Electric stuff has some high speed video of can crushing.

Cheers
TDU

Marko

Sun Sept 16 2007, 07:54PM

Registered Member #89 Joined: Thu Feb 09 2006, 02:40PM
Location: Zadar, Croatia
Posts: 3145

TDU, I hoped you have something higher quality and longer.. few tens of' Mb isn't a big problem for me today. I mean, you're a god of can crushing anyway :) Your first one also has some bug and part where can is crushed isn't played. But I took them, so thanks.

The links in archived can crusher thread don't work I don't know if it's the same video.

It seems that it's just hard to find ''ordinary'' videos launching rings and cans. Something like your discovery shot would be perfect (licenced?? How it got to be posted on forum so soon?).

I've found some videos on MIT website, but some looked boring even to me.

BTW, I liked Jmartis's post-- keep it going guys! No need to post a lot, just one is enough - quality over numbers!

Marko

...

Sun Sept 16 2007, 11:16PM

Registered Member #56 Joined: Thu Feb 09 2006, 05:02AM
Location: Southern Califorina, USA
Posts: 2445

If you need rocket videos, I have a few reasonably decent ones available in my model rockets and gps tracking thread (some of the entire flight, one of it exploding, one of the ground support equipment for a hybrid launch, etc). I had to run them through some pretty fierce compression to get them to fit on the forum, but I have full 480i resolutions ones if you want them.

Other than that I am more of a picture type of guy...

I might suggest using one of a Reubens Tube

uzzors2k

Mon Sept 17 2007, 02:56PM

Registered Member #95 Joined: Thu Feb 09 2006, 04:57PM
Location: Norway
Posts: 1308

This buoyancy demonstration pretty cool.

vasil

Mon Sept 17 2007, 03:40PM

Registered Member #229 Joined: Tue Feb 21 2006, 07:33PM
Location: Romania
Posts: 506

Forces equilibrium (it was posted on the old forum)

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