A plane's engines are designed to move it forward at high speed. That makes air flow rapidly over the wings, which throw the air down toward the ground, generating an upward force called lift that overcomes the plane's weight and holds it in the sky.

The internet is not a fuzzy cloud. The internet is a wire, actually buried in the ground. Computers connected directly to the internet are called "Servers," while the computers you and I use are "clients," because they are not connected directly to the internet, but through an Internet Service Provider. Routers shuttle packets of information across the internet, and transmit e-mail, pictures, and web pages.

The four stroke engine is probably the most common engine type nowadays. It powers almost all Bikes, cars and trucks. A four-stroke engine is an internal combustion (IC) engine in which the piston completes four separate strokes while turning the crankshaft. A stroke refers to the full travel of the piston along the cylinder, in either direction.

Politics in India take place within the framework of its constitution, because India is a federal parliamentary democratic republic, in which the President of India is the head of state and the Prime Minister of India is the head of the central government. India follows the dual polity system, i.e. a double government which consists of the central authority at the center and states at the periphery.