-
Antoine Lavoisier
he burnt phosphorus and sulfur and proved the mass was the same ans the original. and established the law of conservation of mass. -
Proust
Proust’s largest accomplishment into the realm of science was disproving Berthollet with the law of definite proportions, which is sometimes also known as Prousts Law. -
thomas young
discovered that when a beam of light was seperated and then reunited the beam created a pattern. -
Dalton's Law of Partial Pressures.
the total pressure of a mixture of gases amounted to the sum of the partial pressures that each individual gas exerted while occupying the same space. in 1803 this scientific principle officially came to be known as Dalton's Law of Partial Pressures. -
Dalton publishes A New System of Chemical Philosophy,
In A New System of Chemical Philosophy, Dalton introduced his belief that atoms of different elements could be universally distinguished based on their varying atomic weights -
max planck
he tried to make conclusions from heat radiations to the atoms. he discovered quanta. which disproved previous thoughts of radiation and energy. -
hertz effect
Discovered the photoelectric effect.In the photoelectric effect, electrons are emitted from matter (metals and non-metallic solids, liquids or gases) as a consequence of their absorption of energy from electromagnetic radiation of very short wavelength, such as visible or ultraviolet light. Electrons emitted in this manner may be referred to as photoelectrons.[ -
ernest marsden
he worked on the atomic sructure with ernest rutherford. gold foil test -
J.J. Thompson
discovered there was negatively charged particles traveling around the nucleus. discovered the mass of electrons -
Marie and Pierre Curie discover radium
On Dec. 21, 1898, Marie and Pierre Curie isolated a new element that came to be called “radium,” a landmark moment in chemistry and physics. -
Marie and Pierre Curien win a nobel prize
-
Albert Einstine
The year 1905 was a good year for 26-year-old Albert Einstein. While working at the patent office in Bern, Switzerland, he completed his PhD dissertation. He published his Special Theory of Relativity, which later led to the General Theory of Relativity, Einstein also in 1905 proposed that light energy can be absorbed or emitted only in discrete packets called quantaand this led to Einstein’s winning of the Nobel Prize. Einstein in 1905 also explained the equivalency of mass and energy (e=mc^2) -
Einstine proves atoms exist
Einstein also in 1905 mathematically proved the existence of atoms, and thus helped revolutionize all the sciences through the use of statistics and probability. -
Hans Geiger counter
Developed an electrical device to "click" when hit with alpha particles. -
nobel prize
JJ Thompson recived a Nobel prize. -
Nobel prize
ernest rutherford won the Nobel prize -
Neils Bohr completed his theory of Atomic Structure
in 1913 he completed his theory of atomic structure. This atomic theory was a combination of Rutherford’s work and ideas of the atom, with Planck’s Quantum Theory -
Neils Bohr, hydrogen atom model
In 1913, Niels Bohr had developed a simple (though only partly correct) model for the hydrogen atom . -
nobel peace prize
max plank won a nobel prize -
Ernest Rutherford, theory on Neuron
In 1919 Rutherford developed a theory on the atom's nucleaus and theorized on the existence of a neuron, a non charged particle within the atom's nucleus. -
Neils Bohr won the nobel prize
-
Compton Effect
1922, to his discovery of the increase of wavelength of X-rays due to scattering of the incident radiation by free electrons, which implies that the scattered quanta have less energy than the quanta of the original beam. This effect, nowadays known as the Compton effect, -
Louis de Broglie theory of particle wave duality
French quantum physicist Louis de Broglie introduced his theory of particle-wave duality in 1924 -
wolfgang pauli electron
Wolfgang Pauli is mostly known for his Pauli Exclusion Principle which states that no two electrons in an atom can have the same four quantum numbers. This allows scientist to give electrons an “address” to further distinguish themselves from others in the same atom. -
Heisenberg created the uncertainty principle
states the more precisely the position of a particle is determined, the less precisely the momentum is known in this instant, and vice versa. -
shrodinger
developed a way to mathmatically display electrons -
shrodinger
developed a way to mathmatically and cisually display electrons. -
Arthur Compton won a nobel prize
-
Heisenberg uncertanty principle
states the more precisely the position of a particle is determined, the less precisely the momentum is known in this instant, and vice versa. -
Dirac equation
a relativistic equation of motion for the wave function of the electron. -
Lois De Broglie won the nobel prize
He received the Nobel Prize for Physics on his wave nature of electrons discovery in 1929. -
Chadwick proofs the existence of the neutron
Chadwick proofs the existence of the neutron in 1932 what accelerated the research in nuclear physics inmensely. -
nobel prize
Hiesenberg wins a nobel prize -
Carl Anderson took a important picture
took a picture that clearly displayed a positron crossing a lead plate placed in the cloud chamber. -
Paul Dirac nobel prize
He shared the 1933 Nobel Prize in Physics for 1933 with Erwin Schrödinger -
Enrico Fermi theory of beta decay
newly-discovered neutron decaying to a proton emits an electron and a particle which he called a "neutrino" -
chadwick gets a nobel prize
-
nobel prize
Irene Joliot Curie won the nobel prize -
Nobel prize
Carl Anderson won a nobel prize -
nobel prize
Enrico Fermi received the Nobel Prize for "his discovery of new radioactive elements produced by neutron irradiation -
Neutron Reaserch
Irene researched the action of neutrons. -
Otto and fission
Otto Frisch works on discovering nuclear fission with his aunt. -
Otto Hahn, Fritz Strassman, Lise Meitner produced Uranium nuclear fission
-
Enrico Fermi
created controlled nuclear fission. -
Frish helps make a bomb
he figured out the right way to make the little boy bomb -
nobel prize
otto hahn recived the nobel prize -
Quantum electrodynamics
The theory called quantum electrodynamics, developed from work by Richard Feynman and Julian Schwinger. in the late 1940s -
Nobel prize
wolfgang pauli won a nobel prize -
Broglie, Multi-national Lab
In 1949 de Broglie became the first high-level scientist to call for establishment of a multi-national laboratory -
Carl Anderson discovered a mesotron
Carl Anderson discovered the existence of a charged particle in cosmic radiation (rays from the sun) with a mass (an amount of matter) of about 200 electron masses, or of about one-tenth the mass of a proton, called a mesotron -
quark
murray gell-mann and george zweig. theorized that the differences between protons, neutrons, and newly discovered particles could be explained by the existence of these still smaller particles. -
Nobel Prize
The Nobel Prize in Physics 1965 was awarded jointly to Sin-Itiro Tomonaga, Julian Schwinger and Richard P. Feynman "for their fundamental work in quantum electrodynamics, with deep-ploughing consequences for the physics of elementary particles". -
nobel prize
gell-mann won the nobel prize
