The term half-life is one we apply to radioactive materials to talk about how quickly they decay. The half-life is the time it takes for half of a given sample of the unstable substance (whatever it may be) to undergo radioacitve decay.
Harmony [har-mo-ny]â² as a girls' name (also used less regularly as boys' name Harmony) is pronounced HAR-mon-ee. It is of Latin origin, and the meaning of Harmony is unity, concord. A new age name. Mythology: Harmonia was the Greek goddess of order and daughter of Aphrodite.
Bella means beautiful. Bella means perfect, pretty, smart, nice, and funny. Bella can mean lots of different things depending on the culture, my middle name is Bella and to me its means a strong and beautiful girl who can do anything she sets her mind to. This name means beautiful night. Your a beatiful girl. The name means night in Italian. Bella means beautiful, smart, kind, and sweet.