ELECTRONS

Units of negative lectricity. Their nature is unknown, ulthough there has been much specula i on concerning them. A description of hem recently put forward is that they ly ire ‘rings of negative electricity rotating | ratories, bout their axes at high speed.’ They ire the ultimate particles of matter} ELECTR which is now considered to be built up| treats f atoms consisting of electrons revolystances, ng abou a nucleus t of Positive electricity. | electrified, They are liberated from radio-active light ubstances and also in the so-called there are Jrookes tube—a tube having a high | (positive vacuum through which a high current of | in equal lectricity is pa ed. The sun constantly | Gla ours into space vast streams of elecelectrifie rons, some of which reach the earth and rubbed are known to be of an electrical because they are attracted or by the pole of a magnet. They under favorable conditions, at a approxim ating that of light, or 186,000 miles per second. See ho imple by Volta; consists of circular resin or ebonite and a metal disk. ria ste A diameter with insulating handle.