Tag: Physics
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What If Even Your Point of View Is Uncertain? Quantum Physics Says It Can Be.
Picture yourself standing on a railway platform as a trolley rolls by. A young girl riding inside lets go of a bright red ball. From her perspective, the ball simply drops straight to the floor. But from where you stand, the ball traces a graceful arc before it lands. You are both watching the very…
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Hawking’s Black Hole Prediction Faces a Mathematical Challenge
To understand the universe, scientists often seek the strange wanderers at its edges. “You always want to know about the extreme cases — the special cases that lie at the edge,” said Carsten Gundlach, a mathematical physicist at the University of Southampton. Among the universe’s oldest legends made real are black holes—mysterious realms where matter…
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Making Sense of Gravitational Time Dilation & Special Relativistic Time Dilation – An Excerpt from A Brief History of Time
This is an excerpt from Stephen Hawking’s A Brief History of Time, which is one of the books I am currently reading. As you can see, it talks about how things below seem to take longer to happen if we are high up on Earth. I have heard of this idea before but never had…