Charles Q. Choi
Special to LiveScience
LiveScience.com
2 hours, 49 minutes ago
New explosives could be more powerful and safer to handle than TNT and other conventional explosives and would also be more environmentally friendly.
TNT, RDX and other explosives commonly used in military and industrial applications often generate toxic gases upon detonation that pollute the environment. Moreover, the explosives themselves are toxic and can find their way into the environment due to incomplete detonation and as unexploded ordnance. They are also extremely dangerous to handle, as they are highly sensitive to physical shock, such as hard impacts and electric sparks.
To make safer, more environmentally friendly explosives, scientists in Germany turned to a recently explored class of materials called tetrazoles. These derive most of their explosive energy from nitrogen instead of carbon as TNT and others do.
Tiny bombs were made from two promising tetrazoles with the alphabet-soup names of HBT and G2ZT. These materials proved less apt to explode accidentally than conventional explosives.
After the bombs were detonated in the laboratory, G2ZT also proved as powerful than TNT, and HBT more powerful than TNT and comparable to RDX, said researcher Thomas Klapötke, a chemist at the University of Munich in Germany.
In initial experiments, G2ZT and HBT produced fewer toxic byproducts than common explosives. Still, they did generate some dangerous hydrogen cyanide gas. But mixing these compounds with oxidizers not only avoids making hydrogen cyanide, but also improved performance, Klapötke said.
These compounds have great potential, "especially for large caliber naval and tank guns," Klapötke added.
Klapötke and his colleague Carles Miró Sabate are scheduled to detail their findings in the June 24 issue of the journal Chemistry of Materials.
The research was financially supported by the Ludwig-Maximilian University of Munich, the Fonds der Chemischen Industrie, the European Research Office of the U.S. Army Research Laboratory, the U.S. Army's Armament Research, Development and Engineering Center, and the Bundeswehr Research Institute for Materials, Explosives, Fuels and Lubricants.
Tuesday, May 27, 2008
From the sublime to the ridiculous: bombs that kill YOU but not nature.
Posted by Erik and Angela Green at 11:31 AM 3 comments
Friday, May 16, 2008
Latest comings and goings
The blog-well has been a bit dry as of late. Busy. Uninspired. Lazy. So today I thought I would write about what's been going on with us.
The most important thing right now is our new house! Angie and I are lease purchasing a house in Murray County very close to where we work. This has been our goal for some time and finally we are making it happen. It's a three bedroom, two bath deal. It is in a subdivision we had been hoping to move in to so we're excited. We move in in late June.
Here it is:
Other than that I don't know if I mentioned that Angie was beginning her masters in June. Go Angie! If we can get through a few more days of school we should have a nice summer ahead of us. I will get back into school (UTC) in late June. We plan on heading to Jekyll Island with some friends in mid-June after my family gets together for a weekend of aquarium, Braves, etc. in Atlanta.
For our church friends, we have not stopped coming. We've missed four out of five Sundays due to one thing or another. We will be back Sunday. And no, the move to Murray County does not mean we will stop going to church at EMC.
Have a great weekend yall!
Posted by Erik and Angela Green at 9:23 AM 6 comments
Sunday, May 11, 2008
Un-Reconstructed
Hey some friends of mine play in a band called Unreconstructed, a Civil War period band that is up for an Emmy!!! Yes, an Academy Award! Chris and Heather Dempsey are my friends in the band. Check them out:
http://www.pointsouth.com/unreconstructed/
Posted by Erik and Angela Green at 5:34 PM 0 comments