Great question! 1) Molecules and atoms are held together by electronic attraction - electromagnetism. It is usually considered under the heading of chemical bonding, which is explained by electromagnetic interaction. Electrons are held in their orbits about the nucleus of an atom by the same electromagnetic force.
The surname of Barnes is said to have three possible origins of the surname. The first possible origin of the surname of Barnes is of the Anglo-Saxon variety, and is a topographical surname, or possibly even an occupational surname.
The first recorded spelling of the family name is shown to be that of Turkil Hako,. This was dated 1086, in the Domesday Book of Norfolk, during the reign of King William 1st of England and known as 'The Conqueror', 1066-1087.