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tech / sci.physics.relativity / Re: space dust

space dust

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Subject: space dust
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by: RichD - Sat, 6 Jan 2024 20:30 UTC

Re: space dust

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Subject: Re: space dust
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by: patdolan - Sat, 6 Jan 2024 21:25 UTC

On Saturday, January 6, 2024 at 12:30:35 PM UTC-8, RichD wrote:
> If the Enterprise sets out on galaxy exploration at .99c,
> what does it experience regarding space dust resistance?
>
> Which is an obvious analogy to air resistance -
>
> --
> Rich
At .99c the space dust in the direction of travel would be 7 times denser than what we currently observe because of the length contraction of the universe in the direction of travel. The mass, and hence the momentum would be similarly affected. Although the cross-section of each dust particle would remain unaffected.

At the speed of light, the universe is infinitely dense with dust due to infinite Lorentz contraction. No photon can travel even a micrometer without quantum tunneling through through an infinitely dense dust wall. How do we know this statement to be true? Easy-peasy. We can see the stars at night.

Re: space dust

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From: nos...@de-ster.demon.nl (J. J. Lodder)
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Subject: Re: space dust
Date: Sun, 7 Jan 2024 10:38:17 +0100
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by: J. J. Lodder - Sun, 7 Jan 2024 09:38 UTC

RichD <r_delaney2001@yahoo.com> wrote:

> If the Enterprise sets out on galaxy exploration at .99c,
> what does it experience regarding space dust resistance?

Resistance? It needs a very heavy concrete shield
in order not to vapourise instantly.

That's why it warps istead,

Jan

Subject	Author
space dust	RichD
Re: space dust	patdolan
Re: space dust	J. J. Lodder