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Pure Rolling in a free body

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2 answers
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What happens to the photons as the wavefront expands? Do they split to achieve greater perpendicular extension?

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9 views

What is 'hyperbolic' about globally hyperbolic spacetimes?

-1 votes
2 answers
281 views

Dirac operator notation and matrix elements

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4 answers
56 views

Is gravity as a "force" an "illusion"?

8 votes
5 answers
1k views

Why are there no purple stars?

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2 answers
31 views

What is the current mathematical model of space-time?

2 votes
1 answer
193 views

Laminar Flow From Outdoor Faucet

3 votes
2 answers
258 views

Will the results from two diffraction experiment under exactly the same conditions be completely identical?

1 vote
1 answer
205 views

Does there exist a planar/2D version of Gauss's method of orbit determination?

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70 views

Deriving Wikipedia's heat expression using laws of thermodynamics

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Does moment of method work when dipole length is full wave length?

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Expression for external magnetic field of a cylindrical bar magnet?

28 votes
4 answers
3k views

How specifically does an MRI machine build an image from received radio waves?

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