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1 day ago · Christiaan Huygens, Lord of Zeelhem, FRS (/ ˈ h aɪ ɡ ən z / HY-gənz, [2] US also / ˈ h ɔɪ ɡ ən z / HOY-gənz; [3] Dutch: [ˈkrɪstijaːn ˈɦœyɣə(n)s] ⓘ; also spelled Huyghens; Latin: Hugenius; 14 April 1629 – 8 July 1695) was a Dutch mathematician, physicist, engineer, astronomer, and inventor who is regarded as a key figure in the Scientific Revolution.
1 day ago · The modern convention is to measure charge in coulombs, distance in meters, force in newtons, and energy in joules. Using coulombs requires using the Coulomb constant (k) in the equation. Rutherford used b as the turning point distance (called r min above) and R is the radius of the atom. The first term is the Coulomb repulsion used above.
1 day ago · Spaceflight(or space flight) is an application of astronauticsto fly objects, usually spacecraft, into or through outer space, either withor without humans on board. Most spaceflight is uncrewed and conducted mainly with spacecraft such as satellitesin orbit around Earth, but also includes space probesfor flights beyond Earth orbit.
