Top 10 Famous Work of Albert Eistein
Albert Einstein a Nobel
laureate and probably the world’s greatest theoretical physicist ever
played a significant role in revolutionizing the understanding of
Physics all over the world. Regarded as the Father of Modern Physics,
Einstein was born in Germany in 1879. He was a professor at the Berlin
Academy of Sciences before being affiliated to Institute of Advanced
Study in Princeton in the year 1933. He later became an American citizen
in the year 1940 living there upto his death in 1955. With more than
300 scientific papers to his credit, Albert Einstein was the most
significant physicist of the 20th century. Though he was the one to
suggest the study in this area he wasn’t for the use of Nuclear weapons.
With so much contribution to the field of Physics; it is a herculean
task to narrow down to those that were most illustrious and significant
of all. Nevertheless; below is a list containing the same!
10. Wormholes:
It is a concept which is depicted by Einstein-Rosen Bridge way back
in 1935. Wormhole, in physics, is a hypothetical feature of space and
time continuum that is a path through the continuum itself. Though there
are no practical proofs for the same; in spite of this ample evidence
exists theoretically to validate the conjecture of their existence. It
is a derivative of Einstein’s theory of relativity and basically is a
space-time curvature which joins two different and far-off times or
places.
9. Unified field theory:
Einstein illustrated the ‘Unified Field Theory’ in his paper ‘On the
Generalized Theory of Gravitation’ in the year 1950. It was his vision
to unify gravity with other laws of Physics and hence the endeavor
towards this theory. He worked through most of the latter part of his
career on this but his efforts were unsuccessful. He was so deeply
engrossed in it that other significant advances and events in mainstream
physics were ignored by him. Basically the Unified Field Theory was a
series of experiments conducted by him to accommodate electromagnetism
in his geometric theory of gravitation.
8. Adiabatic principle and action-angle variables:
The 1910s was a decade when a lot of transformation and discoveries
unfolded in the field of Quantum Mechanics. The principles of Quantum
Mechanics developed by Einstein formed the basis of Neils Bohr’s
explanation of the motion of electrons in atoms and the periodic table
of the elements. Einstein showed in 1911 that the adiabatic principle
orchestrated by Wilhelm Wien showed that the quantity that has been
quantized in a mechanical motion must be an adiabatic variant.
7. General relativity and the Equivalence Principle:
The tool of modern Astrophysics; General Relativity is a
Gravitational Theory that was developed by Albert Einstein in the years
between 1907 and 1915. The observed gravitational attraction between
masses is a result of the warping of space and time by those masses.
This theory forms the basis of the present perception of Black Hole.
Einstein published an article in the year 1908 where he explained the
Equivalence Principle which says that the rules of special relativity
applies for a free falling observer as free fall is an inertial motion.
In accurate scientific terms as put forth by Albert Einstein Equivalence
principle states that the weak equivalence principle holds, and that
‘The outcome of any local non-gravitational experiment in a freely
falling laboratory is independent of the velocity of the laboratory and
its location in spacetime.’
6. Schrödinger gas model:
The man behind Schrödinger gas model was not only Schrödinger himself
but Albert Einstein too. However the latter declined a request from
Schrödinger to have his name included as co-author for the paper. Albert
Einstein suggested Schrödinger to treat energy levels of a gas as a
whole instead of treating them as individual molecules; an extension of
the application of Planck’s idea. Using Einstein’s idea, Schrödinger
derived the thermodynamic properties of a semi classical ideal gas using
the Boltzmann distribution in a paper.
5. Quantized atomic vibrations:
Albert Einstein proposed the Einstein Solid Model where if each atom
is a lattice in an independent 3D quantum harmonic oscillator and all
atoms oscillate with the same frequency; each atom oscillated
independently. This model showed that Quantum Mechanics could actually
solve the specific heat in Classical Mechanics. It was proposed by
Albert Einstein in the year 1907 using the Planck’s quantization
assumption.
4. Bose–Einstein statistics:
Commonly known as B-E statistics; it is a property in Quantum
Statistics which illustrates one of the ways of how a collection of
indistinguishable particles may occupy a set of available discrete
energy states. These very statistics are used in present day to describe
the behavior of a collection of bosons. In 1924 Satyendra Nath Bose
presented to Einstein a statistical model which was translated and
submitted by the latter. The Bose-Einstein Condensate phenomenon was
also derived around that time. The Bose-Einstein statistics apply only
to particles that do not follow Pauli Exclusion Principle.
3. Wave–particle duality:
All particles exhibit both wave and particle properties is what is
stated by Wave Particle Duality. An important concept of Quantum
Mechanics; this is a paradox and is often described as a basic Universal
property. Albert Einstein presented a paper in 1909 where he first
provided explanation for the Wave-particle duality. Infact the photon
concept was derived out of this paper. Einstein postulated that
electrons can receive energy from electromagnetic field only in discrete
portions.
2. Photons and energy quanta:
Albert Einstein proposed that light consists of localized particles
in a paper in the year 1905.This idea was rejected by scientists all
round the fraternity including Planck and Neils Bohr and it wasn’t until
the year 1919 that it was actually accepted after Robert Millikan’s
detailed experiments. It was concluded by Albert Einstein that each wave
of frequency f is associated with a collection of photons with energy
hf each, where h is Planck’s constant. This went on to explain the
Photoelectric effect and several experimental results. It was for his
discovery of the law of the photoelectric effect that Einstein was
awarded the Nobel Prize in Physics in 1921.
1. Theory of relativity and E = mc²:
Albert Einstein is known all over the world for the famous equation –
E = mc². One may not really know what the theory actually is but the
fact that it was Einstein behind it is recognized universally. He
published a paper “Zur Elektrodynamik bewegter Körper” i.e, ‘On the
Electrodynamics of Moving Bodies’ in September 1905. It brings together
Maxwell’s equations for both electricity and magnetism with the world of
Quantum Mechanics. This theory explained in the paper was later
christened as Einstein’s Special Theory of Relativity. He was the one
who developed both the special and general theories of Relativity. It
wasn’t accepted with ease and was rather contentious for several years
before being accepted by the scientific fraternity.
No comments:
Post a Comment