physics

William Lawrence Bragg and X-Ray Crystallography

William Lawrence Bragg and X-Ray Crystallography

On March 31, 1890, British physicist and X-ray crystallographer William Lawrence Bragg was born. He discovered the Bragg law of X-ray diffraction, which is basic for the determination of crystal structure and was joint winner (with his father, Sir William Bragg) of the Nobel Prize for Physics in 1915.[4] “God runs electromagnetics on Monday, Wednesday, and Friday by the wave theory, and the devil runs it by quantum theory on Tuesday, Thursday,…
Read more
The Three Mile Island Accident

The Three Mile Island Accident

On March 28, 1979, a partial nuclear meltdown occurred in one of the two Three Mile Island nuclear reactors in Dauphin County, Pennsylvania. The so-called Three Mile Island Accident was the worst accident in U.S. commercial nuclear power plant history. Three Miles Downriver from Middletown, Pennsylvania Three Mile Island has got its name because it is located three miles downriver from Middletown, Pennsylvania. The plant was originally built by General Public Utilities…
Read more
Gustav Kirchhoff and the Fundamentals of Electrical Circuits

Gustav Kirchhoff and the Fundamentals of Electrical Circuits

On March 12, 1824, German physicist Gustav Robert Kirchhoff was born. He is best known for his contribution to the fundamental understanding of electrical circuits, spectroscopy, and the emission of black-body radiation by heated objects. Education and Academic Career Gustav Robert Kirchhoff was born in Königsberg, East Prussia, to his father Friedrich Kirchhoff, a law councillor in Königsberg with a strong sense of duty to the Prussian state, and his mother Johanna…
Read more
Ernst Ruska and the Electron Microscope

Ernst Ruska and the Electron Microscope

On March 9, 1931, German physicist Ernst Ruska together with his doctoral advisor Max Knoll presented the very first prototype electron microscope, capable of four-hundred-power magnification; the apparatus was the first demonstration of the principles of electron microscopy. “The light microscope opened the 1st gate to microcosm. The electron microscope opened the 2nd gate to microcosm.” What will we find opening the 3rd gate? (Ernst Ruska, 1985)[1] Youth and Education Ernst Ruska…
Read more
Henri Becquerel and Radioactivity

Henri Becquerel and Radioactivity

On March 1, 1896, French physicist Henri Becquerel while experimenting with X-rays and photographic plates discovered radioactivity along with Marie Curie and Pierre Curie, for which all three won the 1903 Nobel Prize in Physics. “I developed the photographic plates on the 1st of March, expecting to find the images very weak. Instead the silhouettes appeared with great intensity. It is important to observe that it appears this phenomenon must not be attributed…
Read more
Robert Alexander Watson-Watt and the Radar Technology

Robert Alexander Watson-Watt and the Radar Technology

On February 26, 1935, British engineer and Fellow of the Royal Society Robert Alexander Watson-Watt started with first experiments on detecting and locating aircrafts with radio technique, later called ‘RADAR‘. Radar was initially nameless and researched elsewhere but it was greatly expanded on 1 September 1936 when Watson-Watt became Superintendent of Bawdsey Research Station located in Bawdsey Manor, near Felixstowe, Suffolk. Work there resulted in the design and installation of aircraft detection and tracking stations…
Read more
Ludwig Boltzmann and Statistical Mechanics

Ludwig Boltzmann and Statistical Mechanics

On February 20, 1844, Austrian physicist and philosopher Ludwig Boltzmann was born. His greatest achievement was in the development of statistical mechanics, which explains and predicts how the properties of atoms determine the physical properties of matter. “Who sees the future? Let us have free scope for all directions of research; away with dogmatism, either atomistic or anti-atomistic!” — Ludwig Boltzmann, “Lectures on Gas Theory”, translated by Stephen George Brush (1971), p.…
Read more
The Galileo Affair

The Galileo Affair

On February 13, 1633, Galileo Galilei arrived in Rome and was brought before the inquisitor Vincenzo Maculani to be charged for his defence of the Copernican theory in his writings. In the course of the trial, Galilei was found guilty and sentenced to house arrest for the rest of his life. All in all, Galileo is a frequent guest in our blog. Besides his life, we have already reported about his astronomical…
Read more
The Quantum Hall Effect

The Quantum Hall Effect

On February 5, 1980, German physicist Klaus von Klitzing discovered the Quantum Hall Effect in the high field magnet laboratory of Grenoble, France, for which he was granted the 1985 Nobel Prize in Physics. Hall Effect OK, today we have a topic that is a little bit complicated to explain, at least to us being non-physicists. Let’s start with the ‘traditional’ Hall effect. The Hall effect is the production of a voltage difference (the…
Read more
Carl David Anderson and the Discovery of the Positron

Carl David Anderson and the Discovery of the Positron

On January 11, 1991, American physicist Carl David Anderson passed away. He is best known for his discovery of the positron in 1932, an achievement for which he received the 1936 Nobel Prize in Physics, and of the muon in 1936. “The atom can’t be seen, yet its existence can be proved. And it is simple to prove that it can’t ever be seen. It has to be studied by indirect evidence — and…
Read more
Relation Browser
Timeline
0 Recommended Articles:
0 Recommended Articles: