So cell towers are being installed next to a school that's near mine. Parents there are concerned about this, and also about the presence of wifi networks in schools. They cite research promulgated by a Magda Havas. I know hers is a minority viewpoint- but is it fairly described as 'crackpot'? Do parents have legitimate concerns over these issues?
posted by carterk on Dec 17, 2009 - 18 answers

Why is an electromagnetic driveshaft retarder not the same as regenerative braking? [more inside]
posted by night kitchen on Apr 21, 2009 - 8 answers

How much do criss-crossing electromagnetic waves affect one another? [more inside]
posted by Eiwalker on Feb 21, 2009 - 8 answers

What happens at either extreme of the electromagnetic spectrum? [more inside]
posted by euphorb on Oct 19, 2007 - 17 answers

This morning we go to leave for work (I didn't ride because it was hailing snow, dig?) and the garage door remote didn't work. No worries, the power went off or something, so I go to put some stuff in the car but the car's key remote doesn't work either. Neither does Herself's key. Weirdness indeed... [more inside]
posted by eek on Nov 14, 2006 - 9 answers

EMFilter- I have my old classroom-style record player set up next to my computer monitor, which is causing mild screen jitters. Moving them farther apart is not an option, and I don't want to buy any prefab stuff. Are there any homebrew tinfoil-type solutions?
posted by The White Hat on Jan 17, 2005 - 4 answers

OK, so the guy who lives beneath me thinks he's a DJ, and he's driving me and my GF nuts. Any advice on how to set up an electromagnetic field that is a>powerful enough to fry his equipment, and b>directional? [more inside] Oh yeah, this is all hypothetical [more inside]
posted by Grod on Dec 13, 2003 - 59 answers