A turbine is a rotary engine that extracts energy from a fluid flow and converts it into useful work.It  converts  the energy of rushing water, steam or wind into mechanical energy to drive a generator.Then generator produce electricity with  mechanical energy Continue reading

Niels Henrik David Bohr

Born  : October 7, 1885, Copenhagen Died   : November 18, 1962, Copenhagen Books : The Theory of Spectra and Atomic Constitution  ,  Atomic Theory and the Description of Nature,The Unity of Knowledge Niels Henrik David Bohr was a Danish Continue reading

Fiber optics

History In 1854 a British physicist by the name of John Tyndall discovered that light could be bent around a corner through a curved spout of running water. In this experiment he permitted water to spout from a tube, the light on reaching Continue reading


A surge current is a sudden increase in current usually caused by a voltage unbalance..Even small magnitude surge currents or transient voltages are enough to cause high temperatures and voltage breakdowns.In general terms, a surge is a sudden increase and electrical current is the Continue reading