2009-04-06 16:31:26.051941+02 by Dan Lyke 3 comments
YouTube video: How to make a solar cell with powdered sugar donuts and tea. Turns out powdered sugar donuts use a lot of titanium dioxide to get that whiteness, and with that and a little bit of ingenuity you can make thin film solar cells. Via MarkV's 3,000th post over at Brainwagon.
[ related topics: Movies Robotics Embedded Devices Video Photovoltaics ]
comments in descending chronological order (reverse):
#Comment Re: made: 2009-04-07 23:44:50.655361+02 by: ebwolf
Reminds me of Larry's recipe for explosives - scraping the white powder off old dog turds...
#Comment Re: is made: 2009-04-07 20:19:58.167424+02 by: Dan Lyke
Looks like ScienceLab.com has it for seventy eight bucks for half a kilo. In digging through for that, it looks like your local high school may have some as well.
The other sad part about the search results as I was digging for this is that this looks to be yet another of those situations where, because we've shipped all of our actually productive work elsewhere, it's quite a bit cheaper to extract it from a manufactured product than it is to get the raw materials.
#Comment Re: made: 2009-04-07 19:43:01.038533+02 by: andylyke [edit history]
hmmmmm.... I like it. I wonder whether the powdered sugar on donuts is different from the powdered sugar in a box. More to the point, I wonder where one can get nanocrystalline TiO2
We will not edit your comments. However, we may delete your comments, or cause them to be hidden behind another link, if we feel they detract from the conversation. Commercial plugs are fine, if they are relevant to the conversation, and if you don't try to pretend to be a consumer. Annoying endorsements will be deleted if you're lucky, if you're not a whole bunch of people smarter and more articulate than you will ridicule you, and we will leave such ridicule in place.
Flutterby™ is a trademark claimed by
Dan Lyke for the web publications at www.flutterby.com and www.flutterby.net.