How many explosive devices found in boston

Massachusetts 60 mins ago. New Hampshire 1 hour ago. This article tagged under: bomb squad Massachusetts New Bedford improvised explosive device U. Back to Article. Close Menu. Search for:. Follow Us Facebook Twitter Instagram. The mechanism of blast injuries and the imaging experience of the victims of the Boston Marathon bombing are detailed, as well as musculoskeletal, neurologic, gastrointestinal, and pulmonary injury patterns from blast injuries.

Abstract Although most trauma centers have experience with the imaging and management of gunshot wounds, in most regions blast wounds such as the ones encountered in terrorist attacks with the use of improvised explosive devices IEDs are infrequently encountered outside the battlefield. Publication types Review. Generally speaking someone is in a crowd when they use these. Cell phones are also more reliable than other methods of detonating explosives.

What can an examination of the detonated device tell investigators? We can look and see the method of operations or the signature that the bomb maker had in terms of how they set up the fuse and what type of material they used.

You might even find a scrap like a red piece of tape that looks the kind of tape used at another bomb site. Some bomb makers will also use other pieces of technology, like using a thyristor instead of connecting directly to the battery.

A thyristor acts as a switch when an electrical signal is sent to it. Early reports out of Boston were that law enforcement had the cell network in the area around the finish line shut down although the mobile service providers disputed that they had shut down their networks. Regardless, why would law enforcement want to cut off cell service? In shutting down cell service, you block the ability to create that circuit and ignite that fuse.

In the military we would use jamming devices on our trucks, sometimes seven or eight of them on a single vehicle. If law enforcement in Boston did shut down the service it could have been because they found other, undetonated IEDs that were equipped with cell phones. Larry Greenemeier is the associate editor of technology for Scientific American , covering a variety of tech-related topics, including biotech, computers, military tech, nanotech and robots.

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