What is engineering?

According to the National Academy of Engineering: “Engineering has been defined in many ways. It is often referred to as the ‘application of science’ because engineers take abstract ideas and build tangible products from them. Another definition is ‘design under …

What is a molecule?

A molecule is a particle of matter composed of two or more atoms held together in a particular arrangment by strong chemical bonds. Molecules have a neutral electrical charge that is generally stable. Examples of molecules include molecules of water …