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...difficulties, several advantages are claimed for the new theory. It explains why gravity is always a force of attraction, never of repulsion. "We all know," said Hoyle, "that the apple hit Newton on the head. It did not fly upward." Einstein took account of this often-observed action by arbitrarily assigning a minus sign to a key quantity in equations. Hoyle demonstrates why the sign must be minus...

Author: /time Magazine | Title: Cosmology: Math Plus Mach Equals Far-Out Gravity | 6/26/1964 | See Source »

What would happen to the solar system if half of the universe disappeared? From Newton to Einstein, most experts have agreed that nothing much would happen except that the sky would have fewer stars. But now British Cosmologist Fred Hoyle says that the sun would shine 100 times brighter and burn the earth to a crisp...

Author: /time Magazine | Title: Cosmology: Math Plus Mach Equals Far-Out Gravity | 6/26/1964 | See Source »

...being formed by particles that appear out of nothing in empty space. When he presented his new gravitation theory to a packed meeting of Britain's venerable Royal Society, he modestly described his work, done in collaboration with Indian Mathematician Jayant V. Narlikar, as a slight extension of Einstein's theory of general relativity. "We are clearly aware," he explained, "that in putting forward still another idea we may be like small boys trying to steal apples...

Author: /time Magazine | Title: Cosmology: Math Plus Mach Equals Far-Out Gravity | 6/26/1964 | See Source »

Splendid Parade. Far from a slight extension of Einstein's work, Hoyle's apple stealing is more ambitious larceny. His new theory stems from the Mach Principle, that the mass* of every object in the universe is affected by its interaction with every other object. Einstein tried to incorporate the Mach principle in his own scheme of the universe and admittedly failed. Hoyle claims to have succeeded...

Author: /time Magazine | Title: Cosmology: Math Plus Mach Equals Far-Out Gravity | 6/26/1964 | See Source »

Hoyle's theory also explains why galaxies in distant parts of the universe can, theoretically, move away from the earth faster than the speed of light-a limit that Einstein said could not be exceeded. Hoyle argues that it is wrong to compare the speed of light in one locality with the speed of an object in another locality. He believes that his theory makes it easier to explain in earthly terms events that occur in distant localities of the universe...

Author: /time Magazine | Title: Cosmology: Math Plus Mach Equals Far-Out Gravity | 6/26/1964 | See Source »

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