Transfer of atomic mass with a photon solves the momentum paradox of light

Re:Transfer of atomic mass with a photon solves the momentum... by empath75 on Sunday July 02, 2017 @10:04AM (#14682528)

There are type Ia supernovas that can give precise distances, no?

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Re:Transfer of atomic mass with a photon solves the momentum... by marcosdumay on Sunday July 02, 2017 @11:31AM (#14682921)

They give very precise distances by red-shift calculations.

There's no direct way to measure the distance of very far objects. There's only red-shift and Hubble's Law.

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Re:Transfer of atomic mass with a photon solves the momentum... by FeatureRush on Sunday July 02, 2017 @02:54PM (#14683808)

Wasn't it the other way around? A type of supernovas ("standard candles") were discovered before the expansion and used to discover the expansion? The formula for distance only uses absolute and apparent magnitudes to calculate distance?

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Re:Transfer of atomic mass with a photon solves the momentum... by marcosdumay on Monday July 03, 2017 @11:36AM (#14689008)

Yes, my comment above is wrong. It was the other way around.

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Re:Transfer of atomic mass with a photon solves the momentum... by empath75 on Sunday July 02, 2017 @05:58PM (#14684566)

Yeah they calibrated red shift from standard candles.

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Re:Transfer of atomic mass with a photon solves the momentum... by funnuf on Sunday July 02, 2017 @09:42PM (#14685369)

They use luminosity for SNe Ia.

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