November, 2009Archive for

Robot Limb

"Robot Suit HAL" is a cyborg-type robot that can expand and improve physical capability. When a person attempts to move, nerve signals are sent from the brain to the muscles via motoneuron, moving the musculoskeletal system as a consequence. At this moment, very weak biosignals can be detected on the surface of the skin. "HAL" catches these signals through a sensor attached on the skin of the wearer. Based on the signals obtained, the power unit is controlled to move the joint unitedly with the...

Future alternative energy

MICRO ALGAE Pond scum gets a bad rap. But microalgae — tiny, single-celled aquatic organisms — are rising stars in the renewable energy sector. They can provide oil that can be turned into liquid fuels such as biodiesel and jet fuel. Algae oil is mostly triacylglycerides — long fatty acid chains with glycerol backbones — that can be converted to diesel and other fuels in relatively few steps. Algae’s potential lies in their speedy growth rate, efficient photosynthesis and flexible habitat pr...