India, June 12 -- After a Gatwick-bound Air India plane(AI171) with 242 people onboard crashed minutes after takeoff from Ahmedabad's Sardar Vallabhbhai Patel International Airport today, the search for the flight's black box continues, which is crucial equipment to find out what happened moments before the disaster.

A black box is a small machine that records information about an aircraft during its flight. This bright orange or yellow rectangular box is crafted to withstand explosions, fire, water pressure, and high-speed crashes. Discovered by Australian scientist David Warren, it is used to discover the cause of a plane crash.

The black box also comprises two recorders, a cockpit voice recorder for pilot voices and cockpit sounds, a...