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It is no secret that spacesuits are heavy. The full spacesuit worn on the space shuttle, including life support system, clocked in at 310 pounds. At the same time, these suits are bulky, and hard to move around in. So researchers are looking for alternatives—skinnier suits that would weigh less, be more maneuverable, and maybe even have the bonus of helping to support the muscles and skeletal system, which can take a beating during prolonged periods of weightlessness.
Txchnologist has a story up right now about the quest for a better spacesuit. It includes a in-depth look at the BioSuit, which Pesco wrote about here back in 2007. But there are other approaches being explored, as well.
One concept I found particularly interesting might not do much to solve the bulk issue, but could make a big difference for astronaut muscle tone.
In this case, the engineers hope to retain astronauts’ muscle and bone strength by affixing cell phone-size gyroscopes to their arms and legs to imitate gravity. “The property of these control-moment gyroscopes is that they resist changes in angular momentum and thus could apply a couple of pounds of force (torque, in reality),” [researcher Kevin Duda] says.
With a pair of the rechargeable battery-powered units on each appendage—forearms, upper arms, calves and thighs—the astronauts would feel resistance to motion that would to some degree simulate that of normal gravitational force. When floating in deep space or near asteroids, the gyroscopic units, perhaps installed in backpacks, could help astronauts to stabilize their attitude so as to “maintain orientation toward the task at hand to boost operational efficiency.”
I'm really digging the look of Dr. Paul Koudounaris' new book, The Empire of Death: A Cultural History of Ossuaries and Charnel Houses.
Don't yet have a copy in my hands (it's not out 'til October), but I've pre-Amazonned one for myself. The book is packed with hundreds of gorgeous color photographs of these sites throughout the world, many of which are usually inaccessible to outsiders.
Advance order here for $31.50. View more photos and a sneak peek inside the book, below...