Structure of electron: An important scientific discovery

Electric field can only be influenced (attract or repel) by electric field and magnetic field can only be influenced by magnetic field. But electrons can be influenced by both electric field and magnetic field..More...

Structure of atom

The gold foil experiment performed by Hans Geiger and Ernest Marsden in 1909 under the supervision of Rutherford proved that atom has a central positively charged nucleus and most of the mass of an atom is concentrated in the nucleus alone..More..

What is radio wave?

A radio transmitter circuit produces radio waves when the free electrons (or mobile electrons) in the circuit oscillate. The frequency of an emitted radio wave is the frequency of the oscillation of the electrons..More..

How is light emitted by an atom?

An atom emits radiations when the electrons in the atom are excited. The electrons in an atom are situated in “shells”. Each shell has its own unique resonant frequency. When a shell is excited, it will oscillate in its resonant frequency..More..

How is nuclear energy released?

The electron-positron pair production, when a high energy photon (with energy of 1.022 MeV) interacts with a heavy atom indicates that, in appropriate conditions, space matter can be..More..

Space matter/ aether

In 1887 Albert Michelson and Edward Morley performed “interferometer” experiment aimed at detecting the relative motion of matter relative to the ‘stationary luminiferous aether’ known as the Michelson–Morley experiment..More..