Sujet : Re: [SR] The traveler of Tau Ceti
De : tjoberts137 (at) *nospam* sbcglobal.net (Tom Roberts)
Groupes : sci.physics.relativityDate : 28. Mar 2024, 23:19:12
Autres entêtes
Message-ID : <rfWcndP1AuN8cZj7nZ2dnZfqlJ-dnZ2d@giganews.com>
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On 3/27/24 12:07 PM, Volney wrote:
Rapidity is related to speed but isn't a speed. It is related to speed by r = arctanh(v/c) where v is the velocity.
Yes. It is the hyperbolic angle of rotation in a space-time plane due to relative velocity v (Minkowski geometry). Just like \theta is typically the angle of rotation in a space-space plane (Euclidean geometry).
Tom Roberts
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