Solar Energy Ever since the dawn of time, the sun has been a resource we cannot live or do without, so its not such a shock that man has come up with the idea of solar energy. Solar energy had many uses. Some can be dangerous and some, a very valuable asset to the modern world. Solar energy...

Aristarchus was not just a man of astronomy. He was also actively involved in mathematics as well as astronomy. He used his knowledge in both fields to discover great advances in the astronomy world like the fact that the earth rotates on its own axis and that the sun is in a fixed position and...