A short history of the discoveries of the atom. ... The history of the study of the atomic nature of matter illustrates the thinking process that goes on in the philosophers and scientists heads.

An element is a substance made from only one type of atom. An element cannot be broken down into any simpler substances.

A BRIEF HISTORY OF ATOMIC THEORY DEVELOPMENT ... If the negative and positive charges were in some arrangement that left empty space in the atom, particles shot at the atom might be able to pass

Ernest Rutherford (1909), England - used the results of his gold-foil experiment to state that all the mass of an atom were in a small positively-charged ball at the center of the atom.

The Models of the Atom ... This took us thousands of years to realize, and the present chapter is a journey through that history, one that eventually gave us enough understanding and power to mimic,

Description of discoveries and attainments in world's microstructure physic accomplished throughout two thousand-year-old history of this science development also takes place here. ... Logo-Atom

History Made Every Day™ ... On this day in 1945, at 5:29:45 a.m., the Manhattan Project comes to an explosive end as the first atom bomb is successfully tested in Alamogordo, New Mexico.

History Made Every Day™ ... On this day in 1945, at 5:29:45 a.m., the Manhattan Project comes to an explosive end as the first atom bomb is successfully tested in Alamogordo,... MORE >

ne hundred years ago, amidst glowing glass tubes and the hum of electricity, the British physicist J.J. Thomson was venturing into the interior of the atom.

The remarkable aspect of the Atom Smasher's history is that Westinghouse made the decision to build the generator in 1936, three years before the discovery of nuclear fission opened up...