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An ancient Greek, Democritus, hypothesized all things were made of atoms and that nothing could be smaller than atoms. Albert Einstein in 1905 demonstrated through mathematical theory that the motion of pollen particles in water (Brownian motion) was due to water molecules hitting against the pollen particles, which proved the atomic and molecular theory. This was confirmed experimentally in 1908. Also in 1905, Einstein explained the photoelectric effect (the emission of electrons from matter in consequence of absorption of energy from light) and concluded that light consisted of particles he called "photons". His Nobel Prize was awarded for explaining Brownian motion and proving the existence of atoms and molecules and for explaining the photoelectric effect in terms of particles of light. [He never received a Nobel Prize for his special or general theory of relativity].

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Q: Who first came up with the idea of particles and what was his theory?
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Related questions

What is the idea that everything is made of small particles?

Particle theory, as opposed to string theory.


Who first questioned the idea of the geocentric theory?

Aristotle was the person who came up of the idea that the earth was the center of the solar system are this theory was called geocentric that means the earth is the center


Who first proposed the geocentric Solar system Theory?

The idea first came from Aristotle, the Great philosopher of the fourth century B.C. Aristotle was the first to theory that the earth was the center of the universe.


Who first came up with the idea that all matter is made up of tiny particles that he named atom?

These philosophers were Leukippus and Democritus, 2 500 years ago; probable a similar theory was also conceived in the antique India.


What term describe the idea that all matter is made of tiny particles?

Compound theory


Who came up with the drift theory?

The idea was first put forward by Abraham Ortelius in 1596, but it was Alfred Wegener who fully refined it in 1912.


Did Democritus have the idea that matter is made up of indivisible particles called atoms?

Yes, as far as we know he was the first to theorize about this, although he had no way of proving his theory. He came up with the word "atomos," which is Greek for indivisible. We honor him even today by using the word atom, which is derived from it.


The idea that matter is made up of fundamental particles called atoms?

Dalton proposed it in Dalton's atomic theory (i think)


Who had the sea floor spreading theory?

Harry Hess came up with the theory of seafloor spreading . Alfred Wegener came up with the idea of continental drift NOT sea-floor spreading.


Who had the theory of sea floor spreading?

Harry Hess came up with the theory of seafloor spreading . Alfred Wegener came up with the idea of continental drift NOT sea-floor spreading.


What does the particle theory prove?

Particle theory is a theory because it is someone's idea. Theory means "An assumption based on limited information or knowledge". So, the partcile theory is a theory because it is someone's idea on how all matter is made of of tiny particles.It is impossible to completely prove, (theory,) and deals with particles.


Who made the idea of evolution famous in the nineteenth century?

Charles Darwin. he had came up with the theory.