SAM OGDEN / SCIENCE PHOTO LIBRARY SAM OGDEN / SCIENCE PHOTO LIBRARY
Micro-rocket engine. Fingers holding a micro- rocket engine prototype. This engine has been developed by Adam London, a researcher at the Massachusetts Institute of Technology (MIT), USA. The engine, which is etched from a silicon wafer, is 3 mm thick and 1. By burning gaseous methane fuel and oxygen, it is hoped that one of these engines could produce 15 newtons of thrust. This would mean that the micro- rocket would have about 20 times the thrust per unit weight as the space shuttles' main engine. It is estimated that 800 micro-rockets could carry a 1000 kilogram vehicle into space.
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