Linus Pauling was a chemist who contributed immensely to the knowledge of chemistry and biological molecules. For his research on the chemical bonds and their application to find out the structure of complex molecules, he was awarded the Nobel Prize in Chemistry in 1954. Since 1946, Pauling had ceaselessly championed against the nuclear tests and all …
Which is the only metal that is liquid at room temperature?
Mercury or quick-silver is a metal which is liquid. It has a very low melting point at minus 38.83 degrees celsius. It means that if the temperature falls below minus 38.83 degrees celsius, it will turn into solid. Under the conditions of room temperature, mercury is in the liquid state.
Creator of the Periodic Table – Famous everywhere except Russia
Dmitri Mendeleev was not a prophet in Russia because the Tsar (the emperor of Russia) did not like his liberal politics. He was not elected to the Russian Academy of Sciences, but in the rest of the world his name was magic.
Pathos of Einstein
Einstein had said, ‘If my theory of relativity be proven successful, Germany will call me a German, and France will declare that I am a citizen of the world. If my theory be proven unsuccessful, France will call me a German and Germany will declare that I am a Jew.’
Fluctuations in the boiling point of water on Mount Everest
The boiling point of water decreases with the reduction of atmospheric pressure. Since the pressure at an altitude of 8,848 m gets highly reduced, the boiling point of water also gets drastically reduced. With every 285 m of elevation, the boiling point decreases by 1°C. The boiling point of water on Mount Everest (8,848 m) …
When Galileo measured time by his own pulse beat
It is said that Galileo Galilei determined the time taken by a pendulum to swing and complete one cycle by comparing its swing to his own pulse beat. He did this one day by observing the bronze chandelier in the Cathedral of Pizza when it started swinging due to a storm. He found that his pulse …