Space and time are woven together to form a fourth dimension called ‘space-time’. The ‘curvature’ is a geometric property of space- time. Einstein identified this property while he was working on his General Relativity theory. The curvature of space-time is directly related to the energy and the momentum of any matter or radiation. A standard…
The QWERTY keyboard derives its name from the sequence of letters in the first row of the keyboard. It was invented by the American Christopher Latham Sholes in 1868, who had built the first typewriter and included this sequence of letters on the keyboard. The sequence is about 129 years old.
The moon exerts a pull on you when it is directly overhead, which cancels the gravitation pull of the earth on you slightly. Therefore, you weigh slightly less that time. Your mass however remains the same.
Space scientists estimate that daily about 40 tons of cosmic or space dust falls on earth. They are studying this dust by collecting them using high-altitude aircraft and satellites. The origin of this dust is not clear. However, it is speculated that in space the asteroids, meteors and comets collide, thus producing dust.
If you wish to travel from earth to the nearest star ‘Sirius’ at 99.99999999% of the speed of light, it will take you 18 hours to reach Sirius. However, when you return to earth after another 18 hours with an intention of dinner, you will find that your family and friends would have already had 6,570 dinners….
Professor Jagadish Chandra Bose demonstrated that the electric rays had the ability to travel long distances without the help of any wire. He did so by initiating the electric rays using a radiator in the lecture room, which passed through three solid walls of the lecture room, an intervening room, to a third room. The receiver…
