Many great articles on this subject exist. Try: http://en.wikipedia.org/wiki/Mass-energy_equivalence
The lexical meaning of a word is given in a dictionary. Derivation is the history of that word's meaning. For example the word "derivation" (in this sense meaning "etymology") is derived from the Latin derivare, "to draw off," derived from de-, away, off, and rivus, stream.
The name of the element is derived from Ernest Rutherford, a well known physicist.
The word volcano is derived from Italian vulcano, after Vulcan, the Roman god of fire
Temperature(s) is/are not derived, they are arbitarily decided scales. They are indirect measures of atomic/molecular vibrational energy.
Andrea is derived from the Greek language and means: strong and with great courage.
how is a demand curve derived from individual demand curve ?
The name is derived from Portuguese and Spanish (barroco) and French (baroque). They all mean a rough or imperfect pearl.
The likely word is queen (a female monarch).The proper name Quen is of Asian derivation.
it is a scientific equation made my albert einstein It is the Formula for WATER (EMC2)
The name John is derived, via Latin and Greek, from the Hebrew name Yochanan (יוחנן) meaning "The Lord is gracious". (:
It is derived from the Greek language. S - Sigma P - Pi E - Epsilon R- Rho M - Mu
The noun 'passel' is a word for a large group of people or things, a word for a thing.