History of Video Games, DNA, Uses for Pi

Video games were first invented by the US military in 1948. It was a missile simulator known as a cathode-ray tube amusement device. The first public video game console was called Odyssey, which was invented by Ralph Baer in 1972. A while after that, new arcade games kept on coming up all the way until the 1990s. Then home console games started getting more popular.

DNA stands for deoxiribonucleic acid and has many uses. It is the genetic code that determines everything about an organism. Every cell in any organism has the same DNA as the other cells in the organism. Cloning is when an organism's DNA is used to make a new organism with the same DNA. Genetic mutation is when an organism's DNA is modified to give the organism an physical advantage or disadvantage. It can happen naturally or can be done in a lab.

Pi can be used to determine the length of circles and curves. To determine the circumference of a circle, multiply the diameter by pi to get the answer. I don't know how to get the length of an arc with pi. I think you need to get the length of the whole circle then divide it by something I don't know about.