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400
Democritus
he was a student of socrates and was greek. he made observations and theorized that everything is made of small indivisible particles called "atomos". He published over 70 books. Born to a family of wealth. Very close with his father. He studied pythagoreanism for a brief part of his life. Enjoyed traveling; visited many places. -
Period: 400 to
dates
this is so it can be organized better. -
john dalton
he made observations called dalton's postulates. he theorized that everything is made of atoms, atoms can't be broken down (solid sphere), and atoms of each element are unique. An interesting fact about John Dalton is that he comes from a poor family and yet managed to keep his foot on the ground. He was color blind but it did not hinder his quest for knowledge. He remained single during his lifetime -
JJ thompson
he invented the cathode raytube experiment. he theorized that there are electrons by using the plum pudding model otherwards known as the choc. chip cookie model. was the teacher of earnest rutherford which was proved wrong by him. -
earnest rutherford
he did the gold foil experiment. he theorized that atoms are mostly empty space w/ small, positive, dense, nucleus. he was the student of JJ thompson and basically proved his own teacher wrong. good job rutherford wish I could do that to one of my teachers. ;) -
Quantum/Modern theory: Albert Einstein
this had many scientists and discovered that neutrons, isotopes are a uncertainty principle. Albert Einstein, one of the few scientists to take Planck's ideas seriously, proposes a quantum of light (the photon) which behaves like a particle. Einstein's other theories explained the equivalence of mass and energy, the particle-wave duality of photons, the equivalence principle, and special relativity in the quantum/modern theory world. -
Neils Bohr
his experiment is the bohr model. he theorized that electrons are organized into energy levels. During the debate about Quantum Theory with Albert Einstein, Einstein said "God does not play dice." Bohr replied by saying "Einstein, stop telling God what to do!"
