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100
Democritus
Democritus was a Greek philosopher who proposed the concept of the atom around 400 BC. He created ideas that composed of that matter is composed of empty space through which atoms move. Atoms are solid, homogeneous, indestructible, and indivisible. -
100
Aristotle
Aristotle was a Greek philosopher that influenced the rejection of the concept of the atom. He wrote extensively on many subjects, including, politics, ethics, nature, physics, and astronomy. -
Jan 6, 1492
Christopher Columbus
Columbus sailed the ocean blue.
In 1492, Columbus sailed the ocean blue, and found the now North America. -
Antoine Lavoisier
Compiled a list of elements known at the time. the list contained 23 elements total. -
Joseph Proust
Best known work is proving the constant and definite proportions. -
John Dalton
John Dalton's atomic theory was a breakthrough in our understanding of matter around the year of 1800. His theory consisted on saying that all matter is composed of exrtemely small particles of atoms. Atoms cannot be created, divided into smaller particles, or destroyed. -
William Crookes
William Crookes noticed one day a flash of light within one of the tubes. He discovered the cathode ray, which later enabled the television to be invented. -
Amedeo Avogadro
Determined the volume of one mole of a gas. -
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J.J. Thomson
J.J. Thomson began a series of cathode ray tube experiments. He was able to determine the charge-to-mass ratio of the charged particle. -
Madame Curie
Her achievements included a theory of radioactivity, techniques for isolating radioactive isotopes, and the discovery of two elements, polonium and radium. -
Henri Becquerel
Accidently discovered that radioation came from uranium itself. -
Max Planck
A German physicist who discovered that matter can gain or lose energy only in small, specific amounts called quanta. -
Albert Einstein
Discovered that every liquid is made up of molecules. And those molecules are always in random, and ceaseless in motion. -
Robert Millikan
Robert Millikan was as American physicist who determined the charge of an electron. He also calculated the mass of an electron.d -
Ernest Rutherford
Ernest became interested in positively charged alpha particles. Determined if the atoms in the gold foil deflected the alpha particles. -
Niels Bohr
Proposed a quantum model for the hydrogen atom. -
Henry Moseley
Discovered that atoms of each element contain a unique positive charge in their nuclei. -
Werner Heisenberg
Proved to have profound implications for atomic models. He concluded that it is impossible to make any measurement on an object without disturbing the object. -
Louis de Broglie
A student in physics, who proposed an idea that eventually accounted for the fixed energy levels of Bohr's model. -
Erwin Schrodinger
Furthered the wave-particle theory proposed by de Broglie. Made the hydrogen atom electron. -
James Chadwick
Showed the nucleus also contained another substomic particle, a nuetral particle called the neutron. -
Babe Ruth's Called Shot
Babe's Called Shot
Babe Ruth hits a homerun in Game 3 of the 1932 world series. This is where he called he shot gesturing to center field, where he had hit his homerun. -
Jackie Robinson
Jackie got past the color barrier, and was allowed in to MLB. -
Texas Western
Texas Western put five black players on the hardwood to start in the 1966 NCAA championship game. The Miners beat the heavily favored Kentucky Wildcats. -
Muhammad Ali
Muhammad Ali let an unbeaten George Foreman pound on him with the confidence that Foreman would punch himself out. Ali knocked him out in the eighth round. -
U.S. Hockey
The US beats the unbeaten Soviet Union in the 1980 olympics. One of the biggest miracles in sports history. -
Michael Jordan
In the all-star weekend, Michael Jordan defeats the highly favored Dominique Wilkins with a perfect 50 score. -
Shaquille O'Neal Breaks the Backboard
Shaq O'Neal Breaks Backbroad
Shaq brings down the backboard with force.
