a typical reason why my project list only keeps expanding…

Posted at 7:41 pm on Nov 22nd, 2008 by Farles

looks like the best way to lose a hand at a party if i have ever seen one…

Posted at 7:44 pm on Nov 22nd, 2008 by deoryp

Nice HV lab at the end.

Posted at 8:22 pm on Nov 22nd, 2008 by Adam Ziegler

If it were me, I wouldn’t have used two metersticks…

Posted at 8:37 pm on Nov 22nd, 2008 by Will

another awesomely useless example of what you can do with LEDs. seriously, why are geeks (myself included) so obsessed with these things? Aside from low power lighting, indicating the state of things and well, toys, what practical use to LEDs really have?

Posted at 9:22 pm on Nov 22nd, 2008 by amk

This kind of makes me want to see pilots mount pov displays on the propellers of their planes

Posted at 10:58 pm on Nov 22nd, 2008 by J

Reminds me of my dad’s plans to do 12″ version but with a spiral of led’s then just define a window in the top or side quarter and to Mechanical TV with it. like was done with a nipkow disk. in the first tv’s before CRT

Posted at 12:07 am on Nov 23rd, 2008 by Killbox

That’s scarry dangerous :D but you can have big Vent in your room :D and display stupid forms :D

Posted at 12:38 am on Nov 23rd, 2008 by HeXeN

Apparently the bandwidth limit of the site was exceeded. Guess why…

Looking at the site he apparently got some other interesting projects as well.

Posted at 1:41 am on Nov 23rd, 2008 by Lupin

@amk: Because playing with light brings joy to some people.
just like shitting on people’s fun brings joy to…others, I suppose.

Posted at 6:14 am on Nov 23rd, 2008 by strider_mt2k

hope they’ll have loud music to drown out the noise from that contraption

Posted at 7:56 am on Nov 23rd, 2008 by AbuMaia

@amk: Ruggedness and long life.

I guarantee we will never see a return to incandescent lamps in commercial signage.

Even neon and CCFL are being replaced with LEDs in some cases.

Posted at 10:26 am on Nov 23rd, 2008 by Derek

awesomeness!

Posted at 11:01 am on Nov 23rd, 2008 by walt

Looks like they put lexan shields beside it at the installation. At the end of the video they have some rather huge tesla coils in proximity of each other. Is that safe to run, or would the TC’s interact dangerously with each other?

Posted at 12:22 pm on Nov 23rd, 2008 by travis

looks like you are reinventing the pulsed reactor core and neutron chopping.

Posted at 12:24 pm on Nov 23rd, 2008 by ler73cj

It`s not a lexan shield, it was wire mesh. It was operated in an closed area in order to prevent any dead people.. The Rotor stores about 800-900J…

The HV-Stuff in the lab has been re-arranged in order to create room for the party, during “normal” operation of the lab, the coils, generators and all the toys are a bit better placed… :)
The HV-Lab belongs to the swiss federal institute of technology (ETH) in Zurich, Switzerland and the party was organised by AMIV, the student association for mechanical and electrical engineering.

Greets
Mario

Posted at 12:32 pm on Nov 23rd, 2008 by Mario

That is totally safe.

Posted at 1:56 pm on Nov 23rd, 2008 by Thom

Really enjoyed his video. Totally awesome project!

Posted at 11:43 pm on Nov 23rd, 2008 by bre

“this kind of makes me want to see pilots mount pov displays on the propellers of their planes” — LOL!!!!

Posted at 5:59 am on Nov 24th, 2008 by sahar009

Did they consider using industrial grade single phase AC motor for their project ??

Looks like they had some trouble with the motor and its power supply…

There is definitely some room for improvements !! :-)

Posted at 10:49 am on Nov 24th, 2008 by Askarel

No, we use 2 DC Motors, ca. 12cm long, 5cm diameter, 200W peak. They go up to 80°C while running… We need to change that… :)

Posted at 12:34 pm on Nov 24th, 2008 by Mario

I’ve been thinking more about uses of LEDs.

Remote controls are another.
Opto-isolators, too.

And last, but most important:

Semiconductor lasers are a form of LED.

Think about it.

Posted at 1:16 pm on Nov 24th, 2008 by Derek

Is it just me, or did that blade look like it was just a yardstick?

Posted at 6:16 pm on Dec 1st, 2008 by web

Nope, the blade is a solid aluminium flat bar, 5mm thick, 2m long and sharpened on the edges for less air friction… :)

Posted at 9:58 am on Dec 10th, 2008 by Mario

“sharpened on the edges for less air friction…”
I don’t want to put my hand near that! (Or any other part of my body!)

Posted at 9:32 am on Apr 29th, 2009 by phil

@amk:
That’s like saying “other than a fast and efficient mode of transportation, of what practical use are automobiles?”

Posted at 8:15 am on May 28th, 2009 by Tex

Making a 2 kilometer POV. Who’s with me…
…
…

…

Posted at 12:18 am on May 29th, 2009 by Gert