solve

Spacetime Special Relativity Concept

Counting galaxies to solve a cosmological puzzle: putting the special theory of relativity into practice

The theory of relativity generally encompasses two interrelated theories of Albert Einstein: special relativity published in 1905 and general relativity published in 1915. Special relativity applies to all physical phenomena in the absence of gravity. General relativity explains the law of gravity and its relationship to other forces in nature. The theory of relativity was …

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Firing Joe Girardi wouldn’t solve the Phillies’ problems

With Phillies Manager Joe Girardi faces questions from reporters about his job security, owner John Middleton and president of baseball operations Dave Dombrowski must consider the following. • Would Girardi’s departure provoke howls of injustice from players, fans and the media? (Probably not.) • Who would replace Girardi? (There is no obvious answer.) • Would …

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Firing Joe Girardi wouldn’t solve the Phillies’ problems

With Phillies Manager Joe Girardi faces questions from reporters about his job security, owner John Middleton and president of baseball operations Dave Dombrowski must consider the following. • Would Girardi’s departure provoke howls of injustice from players, fans and the media? (Probably not.) • Who would replace Girardi? (There is no obvious answer.) • Would …

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Hot-blooded or cold-blooded? Chemical clues solve one of paleontology’s oldest mysteries

Schematic drawing of a subset of animals studied in the research. Metabolic rates and resulting thermophysiological strategies are color coded, orange hues characterize high metabolic rates coinciding with warm blood, and blue hues characterize low metabolic rates coinciding with cold blood. From left to right: Plesiosaurus, Stegosaurus, Diplodocus, Allosaurus, Calypte (modern hummingbird). Credit: © J. …

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