Radioactive decay and nucleosynthesis

Radioactive decay is the process by which an unstable atomic nucleus loses energy by radiation. A material containing unstable nuclei is considered radioactive. Three... Read more »


An atom is the smallest constituent unit of ordinary matter that constitutes a chemical element. Every solid, liquid, gas, and plasma is composed of... Read more »

Logic Gate

A logic gate is an idealized or physical electronic device implementing a Boolean function, a logical operation performed on one or more binary inputs... Read more »

Doppler Effect

The Doppler effect (or the Doppler shift) is the change in frequency of a wave in relation to an observer who is moving relative... Read more »