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DARPA technology allows people like geckos climb walls
Researchers at Darpa have to climb. Using technology to their Z-Man project, a man of less than 100 pounds a glass wall of 7.5 meters The man made during the climb only use panels that are inspired by the legs of geckos.
From previous studies it is known that the legs of geckos have a rigid, yet flexible, hairlike structure called seta. The hairs on the feet of geckos were about 0.1 mm long and 0.002 mm thick, and the animals provide the ability to cling to surfaces that normally do not stick. Use is made of van der Waals forces . In areas with high humidity is the hair-like structure softer, resulting in a larger adhesive surface.
The researchers at Darpa managed to replicate this structure with existing resources and have incorporated it into what they call “geckskin. To do this they have used materials such as rigid carbon fiber and Kevlar in combination with flexible materials such as polyurethane , and polydimethylsiloxane . The combination of these materials gives rise, according to the researchers that the geckskin be optimally able to spread, resulting in a larger adhesive surface. Across a surface A piece geckskin with an area of 16 square inches, converted about 103cm ², proved more capable of all to be able to wear. nearly 300kg
The researchers have confirmed this technology on special panels, which a man weighing less than a hundred pounds a vertical glass wall of 7.5 meters climbed. One of the challenges for the team of researchers at these panels that had to stick to the wall, but not so much that it would be. Then difficult to pry the whole enough In the test with static weights this problem was not addressed. It would be overcome with the panels, suggesting that the composition of geckskin not adapted for climbing.
The researchers have the technology designed for soldiers who use to date of ladders and ropes if they want to climb. Whether a high object Drawbacks include that soldiers only for one may venture to climb and the first climber usually take the greatest risk.
The project should lead to these disadvantages are overcome and is therefore aimed at maximum security and flexibility for soldiers working in a cramped urban environment. The ultimate goal of the project is to allow for vertical walls that are made to climb. Standard materials soldiers with full kitViewing:-125
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