May 22, 2009 | 5
PORTLAND, OREGON (May 20, 2009) -- It is easy to understand how explosions involving shrapnel – such as those caused by improvised explosive devices in Iraq – could cause brain damage. But what about such injuries that seem to be caused by blasts themselves, rather than from being thrown or hit by shrapnel?
Researchers have a few ideas, but one scientist has used some of the world’s most powerful computers at the Lawrence Livermore National Laboratory in California to get a better answer. Willy Moss and colleague Michael King used available data on blast waves from explosions and the physical properties of the human skull, brain and cerebrospinal fluid to craft a three-dimensional simulation of a soldier standing less than 15 feet from an explosion of 5 lbs. of C4. (See image to the right.)
Dec 17, 2008 | 7
Because it's the first thing you consider when you go to a heavy-metal concert, we just thought you should know: Head-banging can be hazardous to your health.
That's right — depending on the tempo of the music and the range of motion of your noggin, you could be looking at a head or neck injury, Australian researchers report in today's British Medical Journal.
Andrew McIntosh, an associate professor of biomechanics at the School of Risk and Safety Sciences as the University of New South Wales, and his research assistant, Declan Patton, attended several hard rock and heavy-metal concerts, taking careful note of the most popular head-banging techniques in the audience.
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