In designing its new high-sensitivity infrared camera, NASA engineers looked to nature for inspiration. After disappointing tests with carbon nano tubes, they built a silicon-based sensor that mimics the structure of a moth’s eye.
Science has wrought artificial muscles that can contract in just 25 milliseconds. For comparison an average length of a human blink of an eye 100 to 400 milliseconds. Not only are these artificial muscles faster, they are also stronger- 85 times the force of human muscles. These artificial muscles use paraffin wax filled carbon nanotubes. when the wax melts at somewhere between 46 and 68 °C (115 and 154 °F) the nanotubes contract. This makes the muscle easily controlled with electricity. Applications of this can include robotics, smart fabrics, as well as human implants.