category: review
THE FIRST ONE-HUNDREDTH SECOND BY STEVEN WEINBERG 2
These rather intuitive ideas have recently been put on a much firmer mathematical foundation. In 1973 it was shown by three young theorists, Hugh David Politzer of Harvard and David Gross and Frank Wilczek of …
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THE FIRST ONE-HUNDREDTH SECOND BY STEVEN WEINBERG 1
Naturally, it is tempting to try to peek behind this veil. The temptation is particularly strong for theorists like myself, whose work has been much more in elementary particle physics than in astrophysics. Many of …
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THE COSMIC MICROWAVE RADIATION BACKGROUND 2
The one piece of numerical data that was available to Penzias and Wilson was the intensity of the radio noise they had observed. In describing this intensity they used a language that is common among …
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THE COSMIC MICROWAVE RADIATION BACKGROUND 1
Now we come to a different kind of astronomy, to a story that could not have been told a decade ago. We will be dealing not with observations of light emitted in the last few …
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THE PRINCIPLE OF RELATIVITY (IN THE RESTRICTED SENSE)
THE PRINCIPLE OF RELATIVITY (IN THE RESTRICTED SENSE) BY ALBERT EINSTEIN
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GALILEAN RELATIVITY 2
The principle of relativity was first enunciated by Galileo in 1632. Galileo's argument is clear and graphically put. Salviatus: Shut yourself up with some friend in the main cabin below decks on some large ship …
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TSAKANIN KWAKWALWA DA ZUCIYA 5
Suka ce wuri na farko da Allah ya ambaci zuciya yana alakanta ta da tunina shi ne cikin Suratul A'araaf, aya ta 179, inda yake cewa: "Kuma lalle ne hakika, mun halitta, saboda Jahannama, masu …
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SPACE AND TIME IN CLASSICAL MECHANICS
SPACE AND TIME IN CLASSICAL MECHANICS BY ALBERT EINSTEIN
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A HISTORICAL DIVERSION BY STEVEN WEINBERG 2
Third, and I think most importantly, the "big bang" theory did not lead to a search for the 3° K microwave background because it was extraordinarily difficult for physicists to take seriously any theory of …
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THE SYSTEM OF CO-ORDINATES BY ALBERT EINSTEIN
But we can free ourselves from both of these limitations without altering the nature of our specification of position. If, for instance, a cloud is hovering over Trafalgar Square, then we can determine its position …
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Twitter, Facebook, and Instagram are 'a disease'
"I absolutely detest modern 'social media' - Twitter, Facebook, Instagram. It's a disease. It seems to encourage bad behavior ..." -- Linus Torvalds
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TSAKANIN KWAKWALWA DA ZUCIYA 3
Wannan yasa da yawa cikin mutane, musamman a kasar Hausa, basu cika yarda da binciken Malaman Kimiyyar zamani ba kan wasu abubuwa da suka shafi halittar dan adam, ko sararin samaniya da dai sauran abubuwa …
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If you judge people, you have no time to love them
----Mother Teresa
Wisely, and slow. They stumble that run fast.
---William Shakespeare