a moving person or object. MP3: - A popular audio compression format. MPEG: - A popular video compression format. See Motion Pictures Experts Group. MSO: - See Multiple System Operator. Multiple System Operator (MSO): - A cable TV company or other organiza- tion that has franchises in various locations. Nanotechnology: - The creation of materials and devices at atomic and molecular levels. Nanotube: - A carbon molecule, resembling a chicken wire cylinder, that's approximately a millimeter long and about one to two nanometers in diameter. Featuring a tensile strength 10 times greater than steel at about one-quarter the weight, nanotubes are considered the strongest known material for their weight. NASA: - See National Aeronautics and Space Administration. National Aeronautics and Space Administration (NASA): - The U.S. govern- ment agency that operates the nation's space program. National Institute of Standards and Technology (NIST): - A U.S. government agency that develops and promotes measurements, standards, and tech- nologies to enhance productivity, facilitate trade and improve the quality of life. National Science Foundation (NSF): - An independent US government agency responsible for promoting science and engineering. NIST: - See National Institute of Standards and Technology. Node: - In a network, a computer, printer, hub, router or other connection or interconnection point. GLOSSARY NSF: - See National Science Foundation. OLED: - See Organic light-emitting diode. Omnidirectional: - Describes a device, such as a microphone or antenna, that emits or receives signals from all directions. Optical Fiber: - A thin glass strand designed to carry voice or data signals. Organic light-emitting diode (OLED): - A technology that provides ultra-thin, bright, and colorful displays without the need for space-hogging and power- consuming backlighting. Oxygen: - See Project Oxygen. PAN: - See Personal area network. Passband: - A spectrum segment that is allowed to pass between two limiting frequencies. Personal area netwo