What is a good hypothesis for solar energy?

Answer 1

Well, to some people solar energy means a room with sun light, to other people it means allowing the sun to increase the temperature in the same room, or it might mean just getting a sunburn! Solar energy is all of this, but it's much more too! Solar energy is being used to produce electricity, to heat and to cool buildings, to power driven engines, to purify sea water.

If not for solar cells on roofs and on satellites, we wouldn't have solar power to get enough power to work a T.V! How could we survive?!!

Years ago, people living in hot climates built homes in special ways to capture winds that sends cooling breezes throughout the home. In cooler climates people built homes that shielded them from harsh winds that took advantage of the suns warming rays.

The communication satellites, THAT BRINGS YOU T.V. pictures from other parts of the world also uses solar cells. In fact, solar cells have been able to supply all the electricity needed to operate other the equipment aboard many satellites batteries have been totally eliminated in these cases.

Do you know how solar cells are made? If you don't know, this is how it's made and what it is made with.Ready? Here we go!

Most solar cells are made from silicon. What people sometimes do to make this is to first melt the silicon, (but you have to have nearly pure silicon!) in an enclosed area, to produce a small positive or negative electrical charge, and resulting silicon is called N-type silicon because of it's small negative charge. Boron is usally used to produce a positive charge, and the resulting silicon is called P-type silicon because it's given a small positive charge.

Today a lot of people have built their own solar cell heating systems, their own wind- powered boats, cars and radios! This is so that we need not be so dependent on electricity. Remember energy is free, plentiful and non- polluting. Wow, isn't that amazing! I didn't know that people could do such a thing!