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- Alternative technology (2518 bytes)
3: The term also includes products or production processes that promote or...
5: ...l research should be done and how it should be funded; and which of a field of competing alternative t...
7: ...adopted, after which they might no longer be considered "alternative." For example, a class of chemic...
11: * Liquid fuels for automobiles (besides [[gasoline]] and [[diesel]])
19: ...osynthetic]] "[[Gratzel cell]]s" ([[Titanium dioxide]]) - Solar cell (27643 bytes)
1: ... consisting of a large-area [[p-n junction]] [[diode]], which, in the presence of [[sunlight]] is capa...
5: ...r_cell.png|thumb|250x|right|A '''solar cell''', made from a poly-crystalline silicon wafer]]
15: ...2662&RS=PN/2402662 US2402662], "''Light sensitive device''"). Sven Ason Berglund had a prior patent co...
19: ... electric power output to the light power input. Ideally, near the equator at noon on a clear day, the...
21: ...rial for solar cells (and all other semiconductor devices) is crystalline [[silicon]]. Crystalline sil... - Mobile phone (30513 bytes)
2: A '''mobile phone''' is a device which behaves as a normal
3: [[telephone]] whilst being able to move over a wide area (compare [[cordless phone]] which acts as a ...
4: phones allow connections to be made to the
10: ...anufacturers include [[Alcatel]], [[Audiovox]], [[Kyocera]] (formerly the handset division of [[Qualcomm]])...
14: == Worldwide deployment ==
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