Roller Babies

4 million views in 12 days – not surprising. having just read an article on memristors, i strongly suggest to leave instructions in your synapses that there’s no need to buy evian ;). sound: “rapper’s delight” by dan the automator.

UFO sightings?

I have to admit, I would never put much effort into finding out a reasonable amount on UFOs, but others do of course. I found this clip on PakAlert, who has another 11 or 12 links to other so-called UFO sightings. While I certainly wouldn’t dispute the high probability of the existence of plenty of ‘intelligent’ life forms in our universe and beyond, including the possibility of some visiting this planet, I’ve got little to get excited about by simply seeing glowing lights either on film or moving about in the sky. Even if these things are extraterrestrial spaceships – unless one lands beside me and some entity invites me in, i’m afraid their presence means little to me ;).

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The shrinking coin – geeks’ way to symbolise the economy

Well, I guess that’s not the intention, but it’s certainly not a bad interpretation 😉 . Hackerbot Labs built a coin shrinker based on an actual industrial process called electromagnetic forming. They charge up a capacitor to 10kV and then release the stored energy very quickly into a copper coil wrapped around a coin. The sudden current change creates huge magnetic fields first within the coil and then in the coin which make the coin contract and the coil explode. Because of the forces unleashed, the whole process is quite dangerous; the videos shows the need for a specifically thick-walled chamber to contain the explosion of the coil and a string being used to trigger the split second process remotely. The coins’ weight and volume apparently are retained during the shrinking procedure and even its features remarkably survive; they just look a bit warped.

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If you wanna know more, check out Hackerbot Labs’ blog which explains the whole process in more details and in addition provides detailed images of the process steps. It also has another video whose quality better but doesn’t show the spectacular explosion in the same great fashion 😉 .