1) "An electromagnetic bomb or E-bomb is a weapon designed to disable electronics with an electromagnetic pulse (EMP) that can couple with electrical/electronic systems to produce damaging current and voltage surges by electromagnetic induction." "The electromagnetic pulse was first observed during high-altitude nuclear weapon detonations. Electromagnetic weapons are still mostly classified and research surrounding them is highly secret. Military speculators and experts generally think that E-bombs use explosively pumped flux compression generator technology as their power source, though a relatively small (10 kt) nuclear bomb, exploded between 30 and 300 miles in the atmosphere could send out enough power to damage electronics from coast to coast in the US. The US Army Corps of Engineers issued a publicly available pamphlet in the late 1990s that discusses in detail how to harden a facility against "HEMP" - high frequency electromagnetic pulse. It describes how water pipes, antennas, electrical lines, and windows allow EMP to enter a building. According to some reports, the U.S. Navy used experimental E-bombs during the 1991 Gulf War. These bombs utilized warheads that converted the energy of conventional explosives into a pulse of radio energy.[2] CBS News also reported that the U.S. dropped an E-bomb on Iraqi TV during the 2003 invasion of Iraq, but this has not been confirmed." "In 2009, Yael Shahar reported that home-build handheld e-bombs prove to be a significant threat to airliners." Source and further information: http://en.wikipedia.org/wiki/E-bomb 2) "ELECTROMAGNETIC pulse weapons capable of frying the electronics in civil airliners can be built using information and components available on the net, warn counterterrorism analysts. All it would take to bring a plane down would be a single but highly energetic microwave radio pulse blasted from a device inside a plane, or on the ground and trained at an aircraft coming in to land." Source and further information: http://www.newscientist.com/article/mg20227026.200-aircraft-could-be-brought-down-by-diy-ebombs.html 3) If you want to see some of the effects of a E-bomb, put your laptop in your microwave oven (at your own risks). Anyway, if you really want to build something of that kind, which would probably not be a good idea, I would suggest to google it: http://www.google.com/search?hl=en&q=HOW+TO+MAKE+AN+E-BOMB%3F&aq=f&oq=&aqi= 4) Another kind of E-bomb (you wont probably make many friends by making one of these either): "An E-Bomb is some kind of program that opens many windows, and crashes the target computer. This guide can be followed by any one, but the only problem is getting the victim to open the executable file." Source and further information: http://www.elakiri.com/forum/archive/index.php/t-154459.html Further information: http://www.xomba.com/learn_how_make_ebomb 5) The downrate on your question was not from me. I never downrate.