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Created Greek theory of atoms being of different sizes, regular geometric shapes, and being in constant motion. (350 B.C)
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Had the idea that matter was made up of minuscule, irreducible particles."Nothing exists except atoms and empty space. Everything else is opinion" (460BC)
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The establishment of America as a nation all its own occurred from 19 April 1775 to October 1781.
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Recognized and named Oxygen. Then Hydrogen in 1783
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The causes of the Civil War are much more than slavery, but the sustenance or abolition of slavery was the result everyone watched for, and what all the politicians fought for.
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Discovered the law of constant composition.
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All matter consists of tiny particles, atoms are indestructible and unchangeable.
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Made the molecular theory.
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The U. S. paid 60 million francs, and canceled French debts totaling another 18 million, for a grand total of 78 million francs, or about $15 million.
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He discovered the element Thallium. This led him indirectly to the invention of the radiometer in 1875.
https://www.youtube.com/watch?v=EUSBl0fNquw -
John Wilkes Booth shot president Abraham Lincoln during a speach
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Discovered atoms were not invisible. Suggested atoms are spheres of positively charged matter with negatively charged electrons surrounding them.
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Discovered two elements, polonium and radium. https://www.youtube.com/watch?v=ZtjpJMKgcz4
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Discovered that radiation did not only come from the sun, and discovered spontaneous radioactivity.
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Theorized that atoms have their charge concentrated in a very small nucleus.
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Proposed that the atom contains in its nucleus a number of positive nuclear charges that is equal to its atomic number in the periodic table.
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Made the quantum theory.
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Developed the general theory of relativity, discovered the law of the photoelectric effect.
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Helped to develop the atom bomb in Britain and then in the US. Nobel Prize for Physics
https://www.youtube.com/watch?v=Ic8OnvRonb0 -
He was the first to give an accurate figure for the electric charge on an electron.
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Proposed that electrons could behave as waves under some conditions.
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Discovered electrons do not travel in neat orbits, and contain photons. Uncertainty Principle.
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Made equation which helped predict and calculate the energy of atoms as electrons move around.
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English physicist who discovered the neutron.
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America became the first nation to complete the understanding of nuclear fission and developed the first weapon using this technology.
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The jury is still out, and probably will be for a very long time, as to why in the world Kennedy had to die. There are loads of conspiracy theories, most centering on the Chicago mafia. Lee Harvey Oswald is thought to have had help
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American astronaught set foot on the moon
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Vietnam War established something good: peace rallies. Tens of thousands of U. S. citizens paraded, marched, and crowded into various public places, especially Washington D. C., to protest the War, and these rallies worked.
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Osama bin Laden hijacked 4 commercial passenger jets and deliberately flew them into major American landmarks. (The Twin Towers)
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Bin Laden’s status the world over was virtually equivalent to Hilter's. American soldiers assasanated him in 2011.
