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Physics Experiments you can do at your home
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Wormholes Full Explanation By Tech And Science #Wormholes #SpaceScience #SpaceTravel
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Supernova Explained By Tech And Science #Supernova #SpaceScience
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Tech & Science

Our science is much interested in understanding how things change, and the #derivative & the #integral sit at the heart of how mathematicians and scientists understand change. Today, let me introduce you to a German man who invented calculus and developed the present day notation for the differential & integral calculus. His contributions to the development of calculus have also had a major impact on physics. He is our "scientist of the day" today.

It's death anniversary of #GottfriedWilhelmLeibniz, the last universal genius - - -

(Scientist of the Day - 14 November)

Through meeting with such scholars as #ChristiaanHuygens in Paris and with members of the Royal Society, including #RobertBoyle, during two trips to London in 1673 and 1676, Leibniz was introduced to the outstanding problems challenging the mathematicians and physicists of Europe.

As a mathematician, his greatest achievement was the development of the main ideas of #differential & #integral calculus, independently of #IsaacNewton's contemporaneous developments. Mathematical works have consistently favored Leibniz's notation as the conventional expression of calculus.

In physics, Leibniz contributed a fair amount to the statics & dynamics emerging around him, often disagreeing with #Descartes & Newton. He devised a new theory of motion based on kinetic & potential energy, which posited space as relative, whereas Newton was thoroughly convinced that space was absolute. He held a relationist notion of space & time, against Newton's substantivalist views. The rise of general relativity & subsequent work in the history of physics has put Leibniz's stance in a more favorable light.

He was the first to describe a pinwheel #calculator in 1685 & invented the Leibniz #wheel. He also refined the #binary number system, which is the foundation of nearly all digital (electronic, solid-state, discrete logic) computers.

1 year ago | [YT] | 25

Tech & Science

Prior to 1915, astronomers believed that #AlphaCentauri was the closest star to our solar system. Then on Oct 12, 1915, a Scottish man with his vast experience and passion, changed this view by observing thoroughly this Alpha Centauri system. That Scottish man is our "scientist of the day" today.

It's the birthday of #RobertThorburnAytonInnes, the man who discovered Proxima Centauri - -

(Scientist of the Day - 10 November)

A #selftaught astronomer, Innes went to Australia at an early age and made his living as a wine merchant in Sydney, where, using a home made 12-inch reflecting telescope, he discovered several double stars new to astronomy.

With the help of John Franklin-Adams' 10-inch astrographic camera, Innes discovered Proxima Centauri - In 1915, he suspected that Alpha Centauri might have a companion. While comparing photographic plates that were taken five years apart, he observed that a certain #faint star had moved. He found that this movement was about the same as that of Alpha Centauri.

After further investigation, he concluded that it was #closer to the sun than Alpha. In 1917 he proposed the new star should be called #Proxima Centauri, proxima being the Latin word for ‘nearest.’

Today, Proxima remains widely accepted as the closest star to the Sun, but it’s still not known for certain whether Proxima is part of the Alpha Centauri system. (Wikipedia says, it is a member of the Alpha Centauri star system)

1 year ago | [YT] | 18

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Today is November 09. Let me introduce you to an American man who was perhaps America’s most beloved scientific visionary since #AlbertEinstein. Although he did important research on planetary atmospheres, in astrobiology, and on the #origin of life on Earth but he made his reputation primarily as a spokesman for #science and a popularizer of #astronomy. That great American man is our "scientist of the day" today.

It's the birthday of #CarlSagan, the people's astronomer - - -

(Scientist of the Day - 09 November)

In the 1970s and ’80s, Sagan was probably the best-known scientist in the United States. Both an advocate for and a showman of science, he invested much of his career in improving public understanding of science and defending its rational nature.

In 1973 he published, with #JeromeAgel, "The Cosmic Connection: An Extraterrestrial Perspective", which earned him prominence as a popular science writer. The following year he confronted the American writer Immanuel Velikovsky in a public debate over Velikovsky’s theories of the history of the solar system. In 1980 Sagan cofounded the #PlanetarySociety, an international nonprofit organization for space exploration. That same year he reached the height of his public fame with the television series #Cosmos, which he wrote with his wife, #AnnDruyan. The accompanying book, with the same title, became a best seller. It was followed by several other books, including the science-fiction novel #Contact (1985), which in 1997 was made into a successful film, and 'Pale Blue Dot: A Vision of the Human Future in Space' (1994).

Sagan received numerous awards and honours, including the #Pulitzer Prize for nonfiction in 1978 for his book "The Dragons of Eden", the National Aeronautics and Space Administration’s Distinguished Public Service Medal (1977 and 1981), and the #Ørsted Medal from the American Association of Physics Teachers in 1990. In 1994 he was awarded the #PublicWelfare Medal by the National Academy of Sciences.

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