107 years ago, the Eddington total eclipse experiment helped prove Einstein’s theory of relativity
The Eddington experiment used a solar eclipse to prove Albert Einstein’s general theory of relativity
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The Eddington experiment used a solar eclipse to prove Albert Einstein’s general theory of relativity
For about five minutes on May 29, 1919, the Moon blotted out the Sun over an island in the Gulf of Guinea and a hard-baked plain in northern Brazil, and two teams of astronomers po...
In 1935 the most eminent astronomer alive stood up in a packed room and called Chandrasekhar's discovery "stellar buffoonery." The story of Arthur Eddington's years-long campaign a...
The collapsing stars Eddington swore couldn't exist turned out to be everywhere, and half a century later the world handed Chandrasekhar his Nobel. How the 1.4 solar mass limit bec...
Arthur Eddington on the Strange Gap Between Science and Experience
More than a century after Albert Einstein first transformed our understanding of gravity, his general theory of relativity continues to withstand ever more demanding experimental t...
Modern astronomy relies not only on bigger telescopes and more sophisticated instruments, but upon computational power. Source
The story of Subrahmanyan Chandrasekhar, who as a teenager on an ocean voyage worked out that white dwarf stars have a maximum mass of 1.4 Suns. A tour of degeneracy pressure, the...
A best-yet measurement of one of general relativity’s most mind-boggling effects is “another feather in Einstein’s cap”
Dark energy revived Einstein’s discarded cosmological constant and reshaped the leading model of the universe. In 1917, Albert Einstein had recently completed his general theory of...
The Earth may not be that massive, but it still distorts space-time.
Driven from Europe by the feud, Chandrasekhar rebuilt his life in America and turned mastery-and-move-on into an art form. On his conviction that beautiful physics is true physics,...
Laser-ranging technique proves Einstein right again The post Frame-dragging measurement around the Earth sets new precision record appeared first on Physics World.
The nature of dark energy brings to light one of the most powerful pieces of evidence for just how special our universe is to support life. Source
A picture has been taken of a planet nearly 600 trillion kilometres from Earth
Photo via Wikimedia Commons “You do not really understand something unless you can explain it to your grandmother,” goes a well-known quote attributed variously to Albert Einstein,...
Although general relativity (GR) is an elegant theory of gravity, we don't often need to use it. For most gravitational interactions, Newton's theory of universal gravitation works...
Solar eclipses are a rare and brief opportunity for scientists to gather data on everything from the physics of the sun to air pressure in the upper atmosphere
When astronomers talk about directly imaging an exoplanet that is orbiting a far away star, the analogy they most commonly go with is trying to spot a fireflight next to a massive...
Constant acceleration builds a horizon out of nothing but motion, walling off part of the universe forever. Meet Wolfgang Rindler, the coffee date you'll never reach, and the light...
Einstein was a remarkable man, but I believe his greatest strength lay not in discovering the theory of relativity, but in his keen political acumen. On Jan. 30, 1933, Adolf Hitler...
An international team observed a magnetar known as 1E 1547.0–5408 using NASA’s Imaging X-ray Polarimetry Explorer (IXPE), leading to what could be the first detection of vacuum bir...
When Johannes Kepler discovered that his mathematical formula perfectly matched his experimental observations, he was euphoric. Source
Если вы когда‑либо слышали о «величайшей ошибке Эйнштейна» — скорее всего, речь шла о космологической постоянной. Это был поправочный коэффициент, который Эйнштейн ввёл в свои урав...
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