Better than sofa to sit

Fermat's Last Theorem: It is solved one but very famous problem in history of mathematics. It was put forward by Pierre de Fermat. He first wrote in his book(Arithmetica) that, the margin in book is too

Gravity and Gravitation The motion of celestial bodies has always been a subject of interest for a long time for humankind. The prediction of eclipses and equinoxes was considered to be a great sign of

Heat and Temperature When you rub your hands together, they become warm. While touching an ice, hands become cold. During aeroplane crash, it becomes so hot that it catches fire. In all these examples,

Semiconductors Some substances allow passing of electricity through them examples being Steel, Aluminium, Silver, Copper etc. They are called conductors. Whereas, some substances do not allow passing of

SALT BRIDGE AND ITS SIGNIFICANCE Salt bridge is usually an inverted U-tube filled with concentrated solution of inert electrolytes. An inert electrolyte is one whose ions are neither involved in any

Working principle of CI engine: In four-stroke cycle engines there are four strokes completing two revolutions of the crankshaft. These are respectively: The suction, Compression, Power and Exhaust strokes.

WORKING PRINCIPLE OF SPARK-IGNITION ENGINE SI engine is a type of ICE consisting of a spark plug, for the purpose of igniting the mixture of air and fuel, mainly designed to run on petrol (gasoline). Usually,