Tag Archives: Albert Einstein

Ernst Mach

Ernst Mach Ernst Mach (February 18, 1838 – February 19, 1916) was an Austrian physicist, philosopher and experimental psychologist. In physics, he was the first to systematically study super-sonic motion. He also made important contributions to the understanding of the … Continue reading

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1933 New Yorker articles on Einstein

image credit: The New Yorker Magazine (1933) The New Yorker magazine made some of its articles from earlier years available on its website. The following two part article was written in 1933 the year Einstein emigrated to the United States. … Continue reading

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Interesting karma between Einstein and Bohr

I had a new year’s resolution never to mention Einstein in my posts again. Never say never again! I have a new resolution. I will mention his name as part of physics exposition but I will no longer comment on … Continue reading

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Centennial Anniversary of Einstein’s General Relativity Theory

100 years a ago on November 25 1915 Albert Einstein presented the final version of his theory of gravitation known as the General Relativity to Prussian Academy of Sciences. The paper was published in 1916. Why do we mention David Hilbert in the … Continue reading

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Why is gravity so different from other forces?

Here’s the relative strengths of the 4 known forces of nature Image credit There are speculative ideas as to why the relative strength of gravity is much weaker compared to the other forces. In my opinion this is not an apples-to-apples … Continue reading

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Tension between Quantum Mechanics and Relativity

Universal speed limit In the late 19’th century it was noticed that the speed of light is independent of the reference frame. For example, the speed of light emitted from a fast moving train is the same as the speed … Continue reading

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My favorite Einstein photographs

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After reading John D. Barrow’s “The Book of Universes” I realized that I cannot avoid the subject of singularity any longer. Like infinity singularity is an intractable subject. Thinking too much on infinity or singularity will surely lead you to … Continue reading

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Why so many fields?

Physicists are making heroic efforts to unify the known forces of the universe but they seem to be too liberal with the number of fields. I believe in the grand idea of “unification” in physics. In the last 150 years … Continue reading

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Albert Einstein and Rabindranath Tagore

The philosopher physicist and the poet philosopher in 1930: their eyes speak volumes, certainly much more than the words they exchanged. Rabindranath Tagore received the Nobel Prize in Literature in 1913. He was the first Asian Nobel Laurate. Albert Einstein … Continue reading

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Mathematician who coined the term mind-stuff

William Kingdon Clifford was a British mathematician and philosopher. In his short life he produced very important and far reaching mathematical and philosophical works. I will let you read the encyclopedia articles and the original books listed below for details. … Continue reading

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Einstein’s Last Equation

Einstein died at the age of 76 from stomach aneurysm in 1955. He kept working until few hours before his death. At his bed side there were 12 pages of equations. The final line of the last page is the … Continue reading

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Einstein’s 1921 Nobel Prize in 1922 and the Ceremony He Did Not Attend

Einstein could have received 2 Nobel prizes. One for the photoelectric effect and another for the theory of relativity. Einstein was first nominated for the Nobel Prize in 1910 by the chemistry laureate Wilhelm Ostwald. In the next 10 years, … Continue reading

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Gravity binds us

We know how strong gravity is. Humans built powerful rockets to escape gravity. If gravity was weak we would not have to build such powerful rockets. Black holes are formed when massive stars collapse under their own weight. If gravity … Continue reading

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Prometheus and Chronos

Paul Manship’s bronze gilded statue of Prometheus bringing fire to mankind, features prominently in the sunken plaza at the front of 30 Rockefeller Plaza in New York City. The inscription from Aeschylus, on the granite wall behind, reads: “Prometheus, teacher … Continue reading

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Review of the Concept of Time in Physics

Time as Motion In Classical Mechanics (branch of physics dealing with macroscopic objects), past and future play the same role in the description of the motion. The equations of motion are symmetric in time. If you record the motion of … Continue reading

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