Albert Einstein, born March 14, 1879, and died April 18, 1955, made groundbreaking contributions to physics, including the quantum theory of light, the equation E=mc², and the theory of general relativity. His discoveries helped prove the existence of atoms, explained the photoelectric effect, and led to the development of the atomic bomb through the Manhattan Project. Additionally, he invented an energy-efficient refrigerator design, highlighting his influence on both scientific and practical advancements.

2. Important Dates
 Born:-
 14 March 1879, Ulm, Germany.
 Died:-
 18 April 1955, Princeton Medical Center at Plainsboro,
New Jersey, United States.

3. INVENTIONS
Quantum Theory of light
Einstein’s quantum theory of light proposed that light is
composed of small packets of energy called photons that
have wave-like properties. In this theory he also explained
the emission of electrons from some metals they’re struck
by lightning – this was called the photoelectric effect.

4. INVENTIONS
E = MC2
He demonstrated the link between mass and energy that
led to the nuclear energy today.

5. INVENTIONS
Brownian Movement
This could by far be the best Albert Einstein discoveries,
where his observation of the zigzag movement particles in
suspension, helped to prove the existence
of atoms and molecules. And we all know how fundamental
this discovery is to almost every branch of science today.

6. INVENTIONS
Special Theory of Relativity
This Einstein theory helped to explain that time and
motion are relative to their observers, as long as the
speed of light remains constant and natural laws are the
same throughout the universe.

7. INVENTIONS
General Theory of Relativity
Einstein proposed that gravity is a curved field in the
space-time continuum created by the existence of mass.

8. INVENTIONS
Manhattan project
Albert Einstein created the Manhattan Project, a research
supported by the U.S., that led to the development of the
atomic bomb in 1945.However, after learning the destruction
the atomic bomb did in Japan during World War 2, Einstein
was known to be campaigning for a ban on nuclear weaponry.

9. INVENTIONS
Einstein’s Refrigerator
This may be one of the least known inventions that Einstein is famous
for today. Einstein developed a refrigerator design that used ammonia,
water, and butane, and required almost no energy to work. Considering
the energy demands of the world, companies may realize the
importance of cooling & refrigeration without energy, and develop this
concept further in the near future.

10. INVENTIONS
Law of Photoelectric Effect
Einstein's Explanation Of Photoelectric Effect. The
photoelectric effect is a phenomenon where electrons are
emitted from the metal surface when the light of sufficient
frequency is incident upon. ... This implies that the kinetic
energy of electrons increases with light intensity.

11. Thank You