For example, in a computer, address information is transmitted synchronouslyâthe address bits over the address bus, and the read or write 'strobe's of the control bus. Single-wire synchronous signalling. A logical one is indicated when there are two transitions in the same time frame as a zero.
A typical laser maze is a rectangular room filled with a web of laser beams which players attempt to negotiate without âtrippingâ one of the beams. The idea behind the game comes from movies like the 1999 blockbuster film Entrapment, starring Catherine Zeta Jones and Sean Connery, Mission Impossible, and Oceanâs 12.
Laser light is different from normal light in other ways as well. First, its light contains only one wavelength (one specific color). The particular wavelength of light is determined by the amount of energy released when the excited electron drops to a lower orbit. Second, laser light is directional. Whereas a laser generates a very tight beam, a flashlight produces light that is diffuse. Because laser light is coherent, it stays focused for vast distances, even to the moon and back.