That was brilliant Harry. (One of them looks like the actor from "Numbers").
http://en.wikipedia.org/wiki/Triboelectric_effect It seems counter-intuitive then one thinks of a Van de Graff machine and it seems obvious, then on thinking again it seems counter-intuitive again. ".100,000 x-ray photons in a billionth of a second what kind of collective process can do that?" Then the picture of the strands of adhesive (about 100um) pealing. I dunno, voltage of 50kV in a length of 100um field strength 5MV/m. Some sort of transducer effect (Tribo) turns the flexing into surface charge and it seems to cascade over at catastrophic breakdown. http://en.wikipedia.org/wiki/Insulator_(electrical) "Porcelain has a dielectric strength of about 4-10 kV/mm." http://en.wikipedia.org/wiki/Scotch_tape So some kind of cellulose or derivative. I guess perhaps it's like a high voltage ladder generator where at flash over everything is suddenly put in series to generate a large voltage. May be the twisting of the polymer molecules does the alignment and the field breaks down the dielectric along the backbone of the molecule. _____ From: Harry Veeder [mailto:[EMAIL PROTECTED] Sent: 26 October 2008 19:53 To: [email protected] Subject: Re: RE: [Vo]:Generating X-RAYS From Scotch Tape also, that page has a link to great video demo: http://www.nature.com/nature/videoarchive/x-rays/ harry ----- Original Message ----- From: Remi Cornwall <[EMAIL PROTECTED]> Date: Sunday, October 26, 2008 3:08 pm Subject: RE: [Vo]:Generating X-RAYS From Scotch Tape > Interesting. I imagine high voltages are generated too. > > > > I like the one when you open mail in a darkened room and get a > blue flash as > the adhesive is torn. I think it's called electro-trilubescence > <spelling>. > > > _____ > > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] > Sent: 26 October 2008 18:36 > To: [email protected] > Subject: [Vo]:Generating X-RAYS From Scotch Tape > > > > Hello all. I have been lurking here for eons, however, this report > is too > intriguing not to post. According to "Nature" It has been > discovered that > scotch tape when peeled in a vacuum gives off x-rays! Enough x- > rays to > photograph the bones in a finger! > > > > http://www.nature.com/news/2008/081022/full/news.2008.1185.html > > &g t; > It is speculated that the well known luminescense that crystals > radiate when > struck or compressed or when certain tapes are unwound is the > cause.Thecomments at the bottom of the page are as interesting as > the article. You > will see a couple from Bill B. > > There is also mine. Would astronauts have to be warned not to use > duct tape > in a vacuum? Trevor Lawrence > > > > > > _____ > > Play online games for FREE at Games.com! All of your favorites, no > registration required and great graphics - check > <http://pr.atwola.com/promoclk/100000075x1211202682x1200689022/aol?redir=%0d > %0ahttp://www.games.com?ncid=emlcntusgame00000001> it out! > >
