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Antoine Lavoiser
Antoine acheive the title the father of modern chemistry. His discoveries in combustion and respiration changed science. -
Joseph Proust
Based on his studies on copper carbonate reactions, Proust discovered that each pure compound has its own characteristic elemental composition. For example, the ratio of elements never changed even though its mass changed. H2O would always be a ratio of 2:1, whether it was 10 g or 1000g. In 1794, the Law of Definite Proportions stated that the proportion by the masses of two given elements would always remain the same. -
John Dalton
Dalton discoverd that the total pressure of a mixture of gases amounted to the sum of partial pressures that each gas is exerted while occupying the same space, In 1803 the scientific principle became know as Daltons Law of Partial Pressures. -
William Crookes
Crookes was an English chemist who discovered the element thallium. He also discovered negative electrical cathodes in low pressure emit 'cathode rays' or a stream of fast moving electrons. -
JJ Thomson
JJ Thomson was awarded the Nobel Prize in 1906 in physics on research on discharges of electricity in gases. He was known to be the most accomplished physicists of his era due to so many awards given to him. -
Max Planck
Planck worked on the subjects of thermodynamics and the problems of radiation processes. He was able to deduce the relationship between the energy and frequency of radiation where the energy emitted by a resonator. HV, V = the energy for a resonator of frequency, H = a universal constant or Planck's constant. -
Marie Curie
Marie was the first woman to win a Nobel Prize in two different fields(physics and chemistry). Her and Pierre worked on the exploration of radioactivity and discovered a new radioactive element in 1898. During World War I, she established the first military field radiological centres. -
Ernie Rutherford
Rutherford studied under JJ Thomson and was the first to establish the theory of the nuclear atom and to carry out a transmutation reaction in 1919. Also discovered the half-life of radioactive elements and applied this to studies of age determination of rocks by measuring the decay period of radium to lead-206. -
Albert Einstein
In 1921, he won the Nobel Prize for physics for his explanation of the photoelectric effect.In his paper on matter and energy, Einstein deduced the well-known equation E=mc2, suggesting that tiny particles of matter could be converted into huge amounts of energy, foreshadowing the development of nuclear power. In 1940 he went to America to support on research of Nuclear Weapons and signed the Russell Einstein Manifesto. -
Neils Bohr
He began to work on the problem of the atoms sructure by improving Rutherford's theory and model and explaining how electrons orbit on level depending on the levels. In 1922 he recieved the Nobel Peace prize in physics. in 1939 he visited U.S, to inform them German scientists were splitting atoms. Which later encouraged U.S. to make the Atom Bomb -
Erwin Schrödinger
1926 introduction of Schrödinger's wave, the mathematical equation of wave mechanics that is still the most widely used piece of mathematics in modern quantum theory. He also introduce the Schrodinger's Cat theory in 1935 where he experimented on a cat and putting it in a box closed and determining whether it would be dead or alive depending on the cyanide gas given off if detects decay. -
James Chadwick
In 1932, while working under Ernest Rutherford, James Chadwick proved the existence of neutrons, the elementary particle without any electrical charge and a fundamental building block of the atom's nucleus. At the outbreak of World War I he was imprisoned for the duration of that war. During World War II he came to America, where he contributed to the Manhattan Project that developed the world's first atomic weapons. -
Louis de Broglie
Between 1930 and 1950 his work was devoted to the study of various extensions of wave mechanics. In 1929 the Swedish Academy of Sciences awarded him the Nobel Prize on the discovery of wave nature of electrons. -
Friedrich Hund
He work on the electronic structure of atoms and molecules. He helped the introduction method of using molecular orbitals to figure out the electronic structure of molecules and chemical bond formation. -
Werner Heisenberg
His 1925 theory of quantum mechanics offered a matrix method to explain stationary discrete energy states, and was soon superseded by Erwin Schrödinger's more intuitive wave equation. In 1932 he explained the principle of isotopic spin (isospin), a quantum number which arises from regarding different members of a charge multiplet as different states of a single particle. Other areas of research cosmic rays, ferromagnetism, the hydrodynamics of turbulent flows, and subatomic particles.
