alternative current solar cell
71Carbon footprint — A carbon footprint is a measure of the impact human activities have on the environment in terms of the amount of greenhouse gases produced, measured in units of carbon dioxide . [ http://www.carbonfootprint.com Carbon Footprint LTD accessed Nov… …
72Glaucoma — Classification and external resources Acute angle closure glaucoma of the right eye. Note the mid sized pupil, which was nonreactive to light, and injection of the conjunctiva. ICD 10 …
73Hydraulic analogy — The electronic–hydraulic analogy (derisively referred to as the drain pipe theory by Oliver Heaviside) is the most widely used analogy for electron fluid in a metal conductor. Since electric current is invisible and the processes at play in… …
74Shunt (electrical) — In electronics, a shunt is a device which allows electric current to pass around another point in the circuit. The term is also widely used in photovoltaics to describe an unwanted short circuit between the front and back surface contacts of a… …
75Presidential transition of Barack Obama — Obama–Biden Transition Project President …
76Inertial navigation system — An Inertial Navigation System (INS) is a navigation aid that uses a computer and motion sensors to continuously track the position, orientation, and velocity (direction and speed of movement) of a vehicle without the need for external references …
77Control of the National Grid — The National Grid is the high voltage electric power transmission network in Great Britain, connecting power stations and major substations, and has a synchronized organization such that electricity generated anywhere in Great Britain can be used …
78Eugene, Oregon — City of Eugene   City   The Wayne L. Morse Federal Courthouse …
79Energy-Quest — (formerly The Hydrogen Expedition ) is an organization that seeks to educate the public about the risks of an impending energy crisis due to the current worldwide dependence on fossil fuels and the benefits of energy conservation and the use of… …
80Asian American — Asian American …
