forms of energy by Siddhant SHANKAR https://padlet.com/shank320521/11ukb3oek2s7 solar en-us 2016-11-08 05:20:04 UTC 2016-11-14 12:48:45 UTC hello@padlet.com solar energy shank320521 https://padlet.com/shank320521/11ukb3oek2s7/wish/135997869 Every hour the sun beams onto Earth more than enough energy to satisfy global energy needs for an entire year.]]> 2016-11-08 05:24:54 UTC https://padlet.com/shank320521/11ukb3oek2s7/wish/135997869 Many people are familiar with so-called photovoltaic cells, or solar panels, found on things like spacecraft, rooftops, and handheld calculators.  shank320521 https://padlet.com/shank320521/11ukb3oek2s7/wish/135997956 2016-11-08 05:26:10 UTC https://padlet.com/shank320521/11ukb3oek2s7/wish/135997956 On a much larger scale, solar thermal power plants employ various techniques to concentrate the sun's energy as a heat source. shank320521 https://padlet.com/shank320521/11ukb3oek2s7/wish/135997980 2016-11-08 05:26:39 UTC https://padlet.com/shank320521/11ukb3oek2s7/wish/135997980 to drive a steam turbine that generates electricity in much the same fashion as coal and nuclear power plants, supplying electricity for thousands of people. shank320521 https://padlet.com/shank320521/11ukb3oek2s7/wish/135998011 2016-11-08 05:27:13 UTC https://padlet.com/shank320521/11ukb3oek2s7/wish/135998011 Other solar technologies are passive. shank320521 https://padlet.com/shank320521/11ukb3oek2s7/wish/135998050 2016-11-08 05:27:59 UTC https://padlet.com/shank320521/11ukb3oek2s7/wish/135998050 For example, big windows placed on the sunny side of a building allow sunlight to heat-absorbent materials on the floor and walls. shank320521 https://padlet.com/shank320521/11ukb3oek2s7/wish/135998081 2016-11-08 05:28:20 UTC https://padlet.com/shank320521/11ukb3oek2s7/wish/135998081 these surfaces then release the heat at night to keep the building warm.  shank320521 https://padlet.com/shank320521/11ukb3oek2s7/wish/135998102 2016-11-08 05:28:40 UTC https://padlet.com/shank320521/11ukb3oek2s7/wish/135998102 Similarly, absorbent plates on a roof can heat liquid in tubes that supply a house with hot water. shank320521 https://padlet.com/shank320521/11ukb3oek2s7/wish/135998122 2016-11-08 05:28:51 UTC https://padlet.com/shank320521/11ukb3oek2s7/wish/135998122 Solar energy is lauded as an inexhaustible fuel source that is pollution and often noise free. The technology is also versatile.  shank320521 https://padlet.com/shank320521/11ukb3oek2s7/wish/135998170 2016-11-08 05:29:33 UTC https://padlet.com/shank320521/11ukb3oek2s7/wish/135998170