Cool Video of the Day

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I wasn't too sure about this video until the "holy crap that thing is alive" part at the :55 second mark. Could you imagine walking into a room and seeing that?
 
lol nice! Would love to see the look of my 2 yr old daughter when she sees that in her room hahaha!
 
I hope having that huge magnet doesn't cause all of their eletronics to start failing...
whoopsy...
 
From the comments it seems that you guys don't realize that the video was just a rendering graphics effect demo.

All the balls would have flown up to touch the "scrapyard electromagnet" instead of forming an undulating hovering stream.

TLDR:
"Magnets, how do they work?"
"Well, not like that."
 
Musulsa said:
All the balls would have flown up to touch the "scrapyard electromagnet" instead of forming an undulating hovering stream.
Click to expand...

If you just turned it right on, yeah, obviously.

You could pulse it, though, and MIGHT be able to get an effect like that.

But it does seem a lot easier to do in CGI....
 
Even "pulsing" it would not make the balls form a stream or a hovering glob like in the video. There is no way to achieve a cascading stationary hovering effect like that with a single source of magnetism.

Finally, the author of the video is this graphic design studio:
http://physaliastudio.com/
 
Musulsa said:
All the balls would have flown up to touch the "scrapyard electromagnet" instead of forming an undulating hovering stream.
Click to expand...

Unless they inserted electromagnets into the balls that could control how close they got to the larger magnet before switching off and falling down, or cycling to keep a position a certain distance from the overhead magnet.
 
Musulsa said:
Even "pulsing" it would not make the balls form a stream or a hovering glob like in the video. There is no way to achieve a cascading stationary hovering effect like that with a single source of magnetism.

Finally, the author of the video is this graphic design studio:
http://physaliastudio.com/
Click to expand...

His website sucks for a design studio.. in chrome at least.
 
If you look at the clip its clearly not just a piece of metal inserted into the ball (0.53), it looks like some kind of reverse polarity magnet allowing a controlled negation of the effect on the metal (screw) in the "gadget". You also see some kind of control interface in the video (1.08) now if that allows per ball control or per color I dont know.

Also it seems like a lot of work to setup the miniboards for all of these balls.

Scratch that, although it might be doable I just realised there wasnt any shadow on the wall, definitely rendered.

/Q
 
There's shadows from the balls around 0:55, in the lower left, before it pans up.

Even "pulsing" it would not make the balls form a stream or a hovering glob like in the video. There is no way to achieve a cascading stationary hovering effect like that with a single source of magnetism.
Click to expand...
So don't use just a single source of magnetism. Thus why it shows them putting something that looks like a controllable electromagnet into the inside of a ball. :)
 
What is going on here. The video I watched has two kids accidentally typing in porn words. It ends with Ron Jeremy holding two goats. And is over by :55. WTF?
 
This is the video that is shown by default in my browser.
http://vimeo.com/23356460
I have since clicked on the "this video" in the description links and watched the intended video, but the one above is what is sitting there waiting for me to hit play. I have refreshed the page, and reloaded this site, and that is the video waiting for me. After watching both I have to say the default vid I see is much better. :D
 
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Just to make sure I got this right, the goal of this video is to prove that jelly fish are driven by electromagnets :D? I swear that bobbing ball bouncing up and down looked just like a jelly fish moving underwater.
 
It was interesting,but I got a headache thinking about the complexity of controlling all the electromagnetic fields insuch a way as to not touch the large magnet and to be in motion and grouped together as shown in the video.CGI would be a lot easier.
 
Also look at what is on the computer monitor at 0:23 when they dump the balls on the guy at the computer.

The guy at the computer is already editing the video of the levitating stream of balls.

They shot all the footage of the actual physical balls after they'd completed the CGI levitation portion.

As far as I know, no stable magnetic levitation at the distances or in the manner shown in the video has ever been accomplished or is even possible.
 
Also on the screen at 0:30 is another shot of a monitor with the stream of balls in a 3d editting program.
 
Looked pretty cool, but I was expecting a little more. Like the ability to automatically sort the balls based on color (all the green balls, fly up to the ceiling, then all the red balls, etc)

Still kind of cool I guess.
 
Yep, it's a CG demo, but they at least did their research. You COULD use a large standing magnetic field in combination with individual electromagnets (they'd have to be hollow coil though, not iron core as shown) along with hall effect sensors in order to maintain position in the field. This is commonly done with 'hovering' toys (globes, etc), except in those it's the lifted object that contains the permanent magnet, and the hall effect sensor and switched electromagnet is stationary and provides the lift field.
Note that this field is orientational, so if the object flips upside down the levitation effect does not work. You'd have to weight each ball to keep it the right way up, and weight it with something non-ferrous & not paramagnetic.
You could levitate one large object at a time by switching the main lift magnet, but the hardware to do that with such a large electromagnet is not cheap or easy to work with. Plus it looks like a 3-phase magnet, which makes things even more complicated.
eneq said:
it looks like some kind of reverse polarity magnet allowing a controlled negation of the effect on the metal (screw)
Click to expand...
:mad:
 
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