power personal systems
91Flywheel energy storage — NASA G2 flywheel Flywheel energy storage (FES) works by accelerating a rotor (flywheel) to a very high speed and maintaining the energy in the system as rotational energy. When energy is extracted from the system, the flywheel s rotational speed… …
92Superuser — For the enterprise system role, see Power user. On many computer operating systems, the superuser is a special user account used for system administration. Depending on the operating system, the actual name of this account might be: root,… …
93Howard T. Odum — Infobox Systems scientist region = Systems Ecology era = 20th century color = #B0C4DE image caption = name = Howard Thomas Odum birth = 1 September 1924 Chapel Hill, North Carolina, USA death = 11 September 2002 Gainesville, Florida, USA school… …
94Bicycle lighting — has two purposes: seeing and being seen. There are many types of bicycle lights available, each with its own advantages and disadvantages. There is no one best solution for any rider, and many riders mix and match different technologies to… …
95Sustainable energy — Renewable energy …
96Niklas Luhmann — Born December 8, 1927(1927 12 08) Lüneburg, Germany Died November 6, 1998(1998 11 06) …
97Hitachi — For other uses, see Hitachi (disambiguation). Hitachi, Ltd. 株式会社日立製作所 Type Public Kabushiki gaisha Traded as TYO …
98Wireless energy transfer — or wireless power is the transmission of electrical energy from a power source to an electrical load without artificial interconnecting conductors. Wireless transmission is useful in cases where interconnecting wires are inconvenient, hazardous,… …
99Jeet Kune Do — Infobox martial art logocaption = The Jeet Kune Do Emblem The Taijitu symbol represents the concepts of yin and yang. The Chinese characters indicate: Using no way as way Having no limitation as limitation . The arrows represent the endless… …
100David Bradley (engineer) — David Bradley was one of the twelve engineers who worked on the original IBM PC, developing the computer ROM BIOScode. He is credited by some[who?] for inventing the Control Alt Delete key combination that was used to reboot the computer.… …
