Showing posts with label Kevlar. Show all posts
Showing posts with label Kevlar. Show all posts

January 14, 2012

Underwear, It Can Go Either Way


While the title of this blog may be humorous, the subject matter is not.
Not since Superman has humankind been so intent on creating the perfect shielded clothing.
In superman's case, his bold blue and red outfit was lined with lead to protect him from the deadly radioactive Kryptonite, which came to earth in a meteorite from his exploded planet Krypton.
Today, the U.S. armed forces are creating their own ever superior protective suits for its warfighters.
In recent times, with the threats of improvised explosive devices in the wars overseas, the U.S. is seeking to enhance the protective armor of its underwear.
In fact, according to Bloomberg Businessweek, "In 2010, 259 service members in war zones were injured in the genital area."
The military's answer is a new protective bomb-resistant brief for men and women--sometimes called ballistic briefs or shrapnel shorts.
The bomb-resistant briefs being tested traditionally were made from materials such as Dupont's Kevlar, however, the Department of Defense is finding that tightly-woven silk is much more comfortable.
Due to the Berry Amendment of 1941 that requires the military to purchase food and uniforms from domestically produced material, the military is looking for a waiver in order to get the needed silk from Asia.
Interestingly enough, unlike the Underwear Bomber who tried to use his underpants as a hiding place for explosives in 2009 to blow up a Northwest Airlines flight, the ballistic briefs are intended to protect people from explosive devices.
The ballistic briefs are serious business--according to Bloomberg, the Army intends to buy 750,000 pairs and 250,000 cup protectors over the next 5 years.
The stopping power of the new protective underpants would even make Superman jealous, although the DoD version doesn't come in bright colored red.
(Source Photo: here)

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December 26, 2010

Hollywood Sees The Future and It Is Shapeshifting

Ever since watching Star Trek, I’ve been fascinated by shapeshifting’s potential uses for military and law enforcement.

Now, The Economist (11 December 2010) reports that shapeshifting material, or “liquid armor,” is being tested by BAE for high-tech body armor.

Traditional body armor contains about 30 layers of protective Kevlar; however, by using the new material between the protective fibers, BAE is able to reduce the layers of Kevlar to just 10, making for lighter and more comfortable protection.

The secret to the liquid armor is that it is made of “shear-thickening fluids” from nano-engineering particles of silica, which provide the shapeshifting properties: “The molecules in such liquids are closely packed, but loosely arranged. The material behaves like a liquid in normal conditions…[but] if subjected to pressure though [like from a projectile], the molecules lock together and behave like a solid.”

In the body armor, when the fluid sandwiched Kevlar is struck by a bullet, the molecules in fluid lock together and spread the impact, thereby absorbing it more effectively.

This seems like an exciting development applying chemical engineering to protecting the warfighter and law enforcement officers.

What is also so cool is that the concept of shapeshifting being a potent force showed up almost two decades ago in movies and television—and once again we have life imitating art (so to speak)!

Hollywood captured the shapeshifters in both the movie Terminator 2: Judgment Day (1991) and Star Trek: Deep Space Nine series (1993-1999). In Terminator II, a shapeshifting cyborg is sent back in time to try and kill John Connor, the leader of the resistance against the cyborgs. The shapeshifter takes on the form of the various people and things to try and get Connor, but ultimately in thwarted by the original Terminator (played by Arnold Schwarzenegger). Similarly, in Star Trek: Deep Space Nine, Otto is a shapeshifting constable on the space station that protects the station and the Star Fleet command making frequent use of his abilities to shift forms, but always returning at rest to his liquid state to rejuvenate.

I’ve got to say that I applaud Hollywood and continue to see it as not only a creative core for our entertainment, but also a prescient forbear to technology and events to come.

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