Engineering

SUPER EXPLOSIVE DETECTOR: Developed by staff of the University of Arizona, the device can test the air around a person while it passes through an arc similar to a metal detector.The system can detect not only explosives but also drugs. Its sponsors say it is much more sensitive than the nose of a trained dog, with the difference that does not suffer from overexposure or "cold dogs"

FIRST CAR MADE ​​FROM A SINGLE MOLECULE:

The nano car consists of a chassis and axles made ​​of well-defined clusters, suspended on pivot axes which rotate freely. The wheels are of the "buckyball", spheres of pure carbon containing 60 atoms each. Entire vehicle is 3 to 4 nanometers, and is slightly wider than a strand of DNA. A human hair, by comparison,has about 80,000 nanometers in diameter.