The use of candles dates back as far as 3,000 B.C., when ancient Egyptians used papyrus reeds dipped in animal fat that they then lit to use as torches. Similarly, ancient Romans dipped wicks into...
Eventually we will run out of oil.聽 There is no doubt about that.聽 The earth is of a fixed size, and the amount of oil stored in the ground is not infinite.聽 We take it out of the ground and do not...