Proposed the atomic theory. Stated that all matter was composed of small indivisible particles called atoms, atoms of a given element possess unique characteristics, and three types of atoms exist: simple (elements), compound (simple molecules), and complex (complex molecules).
Discovered that atoms have positive charges.
Discovered the electron.
Announced idea that energy emitted by a resonator could only take on discrete values, with v being the energy for a resonator of frequency in hv, and h being the universal constant, now known as Planck’s constant.
Used the falling drop method to accurately determined the charge of an electron
Rutherford model of atom which explained that a small positively-charged nucleus was orbited by electrons.
Published model of the atomic structure. Became basis of the quantum theory.
Discovered systematic relation between wavelength and atomic number. Now known as Moseley’s Law.
Proposed special theory of relativity. States that matter and energy are one through the formula E=mc squared.
Discovered wave nature of electrons and suggested that all matter have wave properties.
Discovered Schrodinger wave equation which stated that the quantum state of a physical system changes over time.
Proposed the uncertainty principle. States that you cannot determine the position and velocity of a subatomic particle at the same time.
Discovered the neutron.
Invented the electrophorus.
Discovered law of conservation of mass.
Discovered induction of electric currents and constructed first electric dynamo.
Discovered pasteurization process.
Obtained patent for dynamite.
Discovered natural radioactivity.
Discovered polonium and radium.
Proved that wireless waves were not affected by the curvature of the Earth.
Produced the first television transmission.
Created nylon, a synthetic replacement of silk.
Created first successful controlled nuclear chain reaction.
Developed polymerase chain reaction.
Discovered by Chinese Admiral Cheng Ho
event that sparked WWI
Japans attack againsted U.S. durring WWII