The protective suits worn by bomb diffusers in "The Hurt Locker" are real, right down to those fabulously popped collars, and they really do save lives. The secret is all in the materials, which provide a barrier against both shockwaves and shrapnel.
The overpressure wave is actually the more dangerous of the two. A microsecond after a bomb goes off, the explosion compresses the surrounding air and blows it outward in a lightning-fast shockwave that ripples through clothing and literally flattens internal organs.
The suit's rigid outer armor layer, the first and most important defense against this threat, is composed mainly of aramids: high-tech synthetic materials that are "strain-rate sensitive." In other words, "the faster something hits them, the harder they become," says Borkar. (Kevlar is simply the brand name of an aramid manufactured by DuPont.) The entire front-facing portion of the suit is reinforced from head to toe with hardened composites of two or more aramids, optimized for strength and lightness. This rigid layer can literally reflect or bounce some of the overpressure energy away from the technician, while also repelling flying fragmentation.
And that's only the first layer of defense. The suits have three total. The downside to all that protection: Weight. Each suit adds an extra 60 or 70 pounds, thus making it even more impressive that Staff Sgt. Jeremy Herbert, the explosive ordnance technician team leader for Marine Wing Support Squadron 271, has run a mile, wearing his suit, in nine minutes and 58 seconds.
Dvice: How Bomb-Proof Suits Work
I learned that there are two forms of mimicry in nature — honest mimicry (e.g., bees and wasps look similar and advertise that they can sting) and dishonest mimicry (e.g., some flies look like bees and wasps to trick predators into thinking they can sting). Inés Dawson, a graduate and PhD student at the University […]
In 1960, parapsychologist Anthony Donald Cornell donned a bed sheet and attempted to scare an audience watching an X-rated film in a movie theater. Why? Cornell, a believer in ghosts himself, wanted to understand how people reacted during “apparitional experiences.” Today at the BBC, University of Oxford experimental psychologist Matthew Tompkins explores Cornell’s strange experiments […]
With so many costumes adorning this election season, you might think the Halloween get-ups are overkill. Think again, because David Ng and B.R. Cohen are here to present the official universal survey about your candy favorites for the 2016 hierarchical delineation of candy virtue.
TV antennas are making a comeback, and the Ghost Indoor HDTV antenna is a great example of why. Unlike the old bunny ear-style antennas, this compact antenna is barely noticeable and picks up channels easily. Plus with the addition of streaming services like Netflix, we find ourselves with plenty to watch without a pricey monthly cable bill. The Ghost […]
I’ve never really felt the need to purchase a smartwatch because a lot of them aren’t very functional, but at just shy of $30, the Martian Notifier Smartwatch was worth checking out. For that low of a price, it actually does feature an impressive amount of functionality, and comes in handy when you don’t want to be carrying around your […]
Geek Fuel is a subscription delivery service that caters to those of us that love comics, gaming, and general geek culture. Every month, Geek Fuel will assemble a box of goodies with a value of $50 or over. The specific items are a mystery, but you’ll always get an exclusive t-shirt not found anywhere else, a full […]