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Há 1 dia · The Rutherford scattering experiments were a landmark series of experiments by which scientists learned that every atom has a nucleus where all of its positive charge and most of its mass is concentrated. They deduced this after measuring how an alpha particle beam is scattered when it strikes a thin metal foil.
Há 2 horas · There was very little data to test theoretical models. Two Nobel prize winning physicists, Lev Landau and Ernest Rutherford quipped, respectively, “Cosmologists are often in error, but never in doubt.” and “Don’t let me catch anyone talking about the universe in my lab!”
Há 1 dia · Ernest Rutherford identifică nucleul atomic. 1912: Republica Chineză este stabilită și se încheie Imperiul chinez. Congresul Național African este fondat. Maroc devine un protectorat al Franței. Scufundarea pachebotului RMS Titanic. Războaiele Balcanice încep. Woodrow Wilson este ales al 28-lea președinte al Statelor Unite ale Americii.
Há 1 dia · George Malcolm (1917–1997), Pianist, Cembalist, Dirigent und Komponist. Arthur Thomas Malkin (1803–1888), Pionier der Bergsteigerei und Schriftsteller. James Mallet (* 1955), Evolutionsbiologe und Entomologe. Mark Malloch Brown, Baron Malloch-Brown (* 1953), Politiker und stellvertretender Generalsekretär der Vereinten Nationen.
Há 2 horas · 1903年，剑桥大学卡文迪许实验室的卢瑟福（Ernest Rutherford，1871-1937）与他的学生索迪（Frederick Soddy，1877-1956）通过计算，断言放射性物质衰变放出的能量是同样质量的物质的化学能的至少2万倍，甚至可能达到百万倍。
Há 2 horas · 1903年，剑桥大学卡文迪许实验室的卢瑟福（Ernest Rutherford，1871-1937）与他的学生索迪（Frederick Soddy，1877-1956）通过计算，断言放射性物质衰变放出的能量是同样质量的物质的化学能的至少2万倍，甚至可能达到百万倍。
Há 2 horas · 土壌はとても複雑で強い内部相互作用を持つ 生態系 である [ 9 ]。. 多くの土壌の 仮比重 （水がない状態での間隙を含んだ土壌の 密度 、乾燥密度とも言う）は 1.1 から 1.6 g/cm 3 であり、土粒子そのものの密度は 2.6 から 2.7 g/cm 3 とずっと大きい [ 10 ]。. 地球 ...
