Saturday, April 10, 2021

Friday, April 9, 2021

NOBEL LAUREATE IVAR GIAEVER

PHYSICISTS OF THE DAY

Today we remember two great physicists #JohannSchweigger (for birthday) and #PyotrKapitsa (for death anniversary) --

Johann Salomo Christoph Schweigger invented the #galvanometer (1820), a device to measure the strength of an electric current. He developed the principle from #Oersted's experiment (1819) which showed that current in a wire will deflect a compass needle. He named this instrument a “galvanometer” in honour of #LuigiGalvani, the professor who gave #Volta the idea for the first battery.

Pyotr Leonidovich Kapitsa shared (with #ArnoPenzias and #RobertWoodrowWilson) the 1978 #NobelPrize for Physics for his basic strong magnetic field inventions and discoveries in the area of #low_temperature physics. He discovered that helium II (the stable form of liquid helium below 2.174 K, or -270.976°C) has almost no viscosity.

The same article you can read on Instagram here https://www.instagram.com/cosmological_astrophysics 

Thursday, April 8, 2021

Tuesday, April 6, 2021

GANDHIANA

NOBEL LAUREATE NIELS BOHR

Niels Bohr’s groundbreaking paper proposing a new atomic model, 'On the constitution of atoms and molecules' is dated 5 April 1913.

The discoveries of the electron and radioactivity at the end of the 19th century led to different models for the structure of the atom. In 1913, Niels Bohr proposed a theory for the hydrogen atom based on quantum theory that energy is transferred only in certain well-defined quantities. Electrons should move around the nucleus but only in prescribed orbits. When jumping from one orbit to another with lower energy, a light quantum is emitted. Bohr's theory could explain why atoms emitted light in fixed wavelengths.

He was awarded the Nobel Prize in Physics in 1922.

Learn more: https://www.nobelprize.org/prizes/physics/1922/bohr/facts 

Grateful thanks to 

NOBELPRIZE.ORG


Wednesday, March 31, 2021

FREE-FLYING ASTRONAUT !


Astronaut Bruce McCandless II floats untethered away from the safety of the space shuttle, with nothing but his Manned Maneuvering Unit keeping him alive. The first person in history to do so.

Credit: NASA

PILLARS OF HOMEOPATHY : DR. J. T. KENT'S BIRTHDAY

Tuesday, March 30, 2021