It is easy to confuse the words “statics” and “statistics”. Statistics is about using numbers to test ideas and make predictions. Statics is about the forces that are acting on things that are not moving. (The study of forces acting on moving objects is called dynamics.) My simple definition of statics is easy to understand… Continue reading 21.15 Statics

Before you read this, I suggest you read post 21.13. When Crick and Watson proposed that the molecular structure of DNA was a double helix, it immediately suggested to them a mechanism for how genetic information could be copied during cell division in mitosis and meiosis. This mechanism was based on the idea that genes… Continue reading 21.14 Copying genetic information