Annus mirabilis papers
Albert Einstein worked as an examiner at the Swiss Patent Office in Bern, Switzerland during 1905. He did not have easy access to a complete set of scientific reference materials while employed there. Scientific colleagues available to discuss his theories were few outside his immediate circle. A co-worker named Michele Besso served as a sounding board for Einstein's ideas. Einstein later stated that he could not have found a better sounding board for his ideas in all of Europe. Other members of the self-styled Olympia Academy included Maurice Solovine and Conrad Habicht. His wife Mileva Marić also had some influence on his work though the extent remains unclear. Most of these papers were written in his apartment on the first floor above Kramgasse street.
Einstein received his first paper titled On a Heuristic Viewpoint Concerning the Production and Transformation of Light on the 18th of March 1905. It was published nine days after receiving it on the 9th of June 1905. This article proposed the idea of energy quanta derived from Max Planck's earlier derivation of black-body radiation law. Einstein stated that luminous energy can be absorbed or emitted only in discrete amounts called quanta. At too low a frequency even intense light produced no electrons according to his findings. However once a certain frequency was reached even low intensity light produced electrons. He postulated that light travels in packets whose energy depends on the frequency. By 1923 Arthur Compton's X-ray scattering experiment helped more of the scientific community accept this formula. Some physicists accepted that the equation E equals hf was correct by 1921 when Einstein won the Nobel Prize.
The second paper titled On the Motion of Small Particles Suspended in a Stationary Liquid as Required by the Molecular Kinetic Theory of Heat arrived at the journal office on the 11th of May 1905. It was published on the 18th of July 1905. Einstein derived expressions for the mean squared displacement of particles using kinetic theory of gases which was controversial at the time. The phenomenon had lacked a satisfactory explanation even decades after it was first observed. Before this paper atoms were recognized as a useful concept but physicists and chemists debated whether they were real entities. Einstein's statistical discussion gave experimentalists a way to count atoms by looking through an ordinary microscope. Wilhelm Ostwald one of the leaders of the anti-atom school later told Arnold Sommerfeld he had been convinced of the existence of atoms by Jean Perrin's subsequent Brownian motion experiments.
A fourth paper titled Does the Inertia of a Body Depend Upon Its Energy Content? was received by the journal on the 27th of September 1905. It was published on the 21st of November 1905. Einstein deduced what is sometimes described as the most famous equation E equals mc squared. He considered this equivalency equation to be of paramount importance because it showed that a massive particle possesses energy distinct from classical kinetic and potential energies. The equation sets forth that energy of a body at rest equals its mass times speed of light squared. When applied to certain nuclear reactions the equation shows an extraordinarily large amount of energy will be released. This explains why nuclear reactions produce enormous amounts of energy as they release binding energy during nuclear fission and fusion. One simply measures mass of all constituents and products then multiplies difference between two by c squared.
Einstein won the Nobel Prize in Physics in 1921 specifically
for his work on photoelectricity. The article On a Heuristic Viewpoint Concerning the Production and Transformation of Light was the only specific discovery mentioned in citation awarding him the prize. The Nobel committee had waited patiently for experimental confirmation of special relativity which did not arrive until time dilation experiments of Ives and Stilwell in 1938 and 1941. Rossi and Hall conducted similar experiments in 1941. Despite greater fame achieved by other works such as special relativity it was his work on photoelectric effect that won him the award. In 1913 Einstein wrote that attention theory received quickly from colleagues was surely to be ascribed in large part to resoluteness and warmth with which Max Planck intervened for this theory. Hermann Minkowski's spacetime formulation in 1907 was influential in gaining widespread acceptance.
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Common questions
Where did Albert Einstein work during 1905 when he wrote his Annus mirabilis papers?
Albert Einstein worked as an examiner at the Swiss Patent Office in Bern, Switzerland during 1905. He wrote most of these papers in his apartment on the first floor above Kramgasse street.
What was the title and publication date of Albert Einstein's first paper from 1905?
The first paper titled On a Heuristic Viewpoint Concerning the Production and Transformation of Light arrived at the journal office on the 18th of March 1905. It was published nine days after receiving it on the 9th of June 1905.
How did Albert Einstein prove the existence of atoms in his second 1905 paper?
Einstein derived expressions for the mean squared displacement of particles using kinetic theory of gases to give experimentalists a way to count atoms by looking through an ordinary microscope. This statistical discussion convinced Wilhelm Ostwald of the existence of atoms following Jean Perrin's subsequent Brownian motion experiments.
Which equation did Albert Einstein deduce in his fourth 1905 paper regarding energy content?
A fourth paper titled Does the Inertia of a Body Depend Upon Its Energy Content? led Einstein to deduce what is sometimes described as the most famous equation E equals mc squared. The equation sets forth that energy of a body at rest equals its mass times speed of light squared.
For which specific work did Albert Einstein win the Nobel Prize in Physics in 1921?
Albert Einstein won the Nobel Prize in Physics in 1921 specifically for his work on photoelectricity. The article On a Heuristic Viewpoint Concerning the Production and Transformation of Light was the only specific discovery mentioned in citation awarding him the prize.