discovery shows

In 1885, Sir William Crookes carried out a series of investigations into the behaviour of metals heated in a vacuum. The experiment of Crookes and others showed that a heated cathode produced a stream of radiation, which could cause gases at low pressure to glow and which, make othe..

The earliest optically active substances were all inorganic like quartz, rock crystals and so on. Later crystals of potassium chlorate, potassium bromate and sodium periodate were also found to exhibit optical activity. However, when these crystalline inorganic and organic compounds like benzil are..

The circle graph shows the details of the percent of people watching different T.V. channels. The total number of people watching T.V. is 9 million. Find the total number of people watching the Discovery channel. => 4.78 million or 3.78 million or 6.78 million or 5.78 million..

The table shows the number of viewers of different TV channels in the U.S. Choose the appropriate box-and-whisker plot for the data and find the mean number of TV viewers. Number of viewers of different TV channels in U.S. Channel Number of viewers (in millions) Discovery 20 Sta..

Ohm's Law - In the year 1820 a French physicist, Andre Ampere made many discoveries on the nature of electricity. While a German physicist, Georg Ohm showed that the flow of an electric current through a wire depended on its 'resistance' and the potential difference between its ..

In the year 1820 a French physicist, Andre Ampere made many discoveries on the nature of electricity. While a German physicist, George Ohm showed that the flow of electric current through a wire depended on its 'resistance' and the potential difference between its end..

Discovery of Optical Activity - The earliest optically active substances were all inorganic like quartz, rock crystals and so on. Later crystals of potassium chlorate, potassium bromate and sodium periodate were also found to exhibit optical activity. However, when these crystalline inorg..

The evidence of the electrical nature of matter preceeded the first theories about the structure of matter. In 1832, Michael Faraday discovered electrolysis. He gave the first important clue relating electricity to matter and about the electric nature of atoms. Faraday enunciated two laws of electr..

The emission of particles from a hot filament was first discovered by Thomas Edison in 1883 but the effect was left unexplained until the discovery of the electron by J.J. Thomson in 1897. In Edison's experiment, he inserted a second filament in the evacuated bulb of a carbon filament lam..

The discovery of the electron towards the end of the nineteenth century was the starting point of new avenues of research in science, which were to give physicists an insight into the structure and nature of the atoms of matter. In 1896, Henri Becquerel discovered that when a photographic..