In 1962 the satellite Telstar was developed by AT&T and it was placed in an orbit of 682 to 4,030 miles (i.e. 1,091 to 6,444 km) orbiting the earth in 2 hours 40 minutes. The first transatlantic television signals were transmitted through Telstar. With the launch of Telstar, wireless communications, such as voice, television, fax and…
The word ‘vaccine’ is derived from the Latin word vacca meaning cow. A vaccine is prepared from killed microbes or other substances that resemble the activity of the organisms that are known to cause the disease. English physician and scientist Edward Jenner established the system of vaccination. He used the vaccination material extracted from virus of…
A virtual model of the brain which is capable of daydreaming just like human beings has been developed by scientists. The computer has been modelled on the dynamics of brain cells and the many connections these cells make with the cells in the brain. This is expected to be useful as a diagnostic tool for…
Zero was invented by the Indian mathematician Aryabhata around 499 AD. The concept of zero first appeared in India around 458 AD. Zero was denoted by the word shunya, or void. In 628 AD, Brahmagupta gave the rules of computing with zero.
In 1920, Meghnad Saha discovered his ionization formula (Saha Ionization Equation). In 1924, Satyendra Nath Bose found his photon derivation of Planck’s Law (Bose Statistics). In 1928, Chandrasekhara Venkata Raman discovered the Raman Effect. In 1930, Subrahmanyan Chandrasekhar predicted the Chandrasekhar Limit. Together they contributed to the golden era of Indian physics.
Peanuts is a popular comics strip created by Charles M. Schulz. One of the main characters, Snoopy, a beagle, is the official mascot for the US astronauts. On January 27, 1967, the launch test for the Apollo 1 mission went wrong when the crew cabin caught fire killing all three astronauts on board. The Apollo…
