jamesamiller

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:Title: Supernova Rescue
:Author: J A Miller, UAH Physics & Astronomy, millerja@uah.edu
               2020/07/01

A starship rescue for a planet about to be hit by supernovae gamma rays

References:

jamesamiller

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:Title: Klingons and Enterprise II
:Author: 	    J A Miller, UAH Physics & Astronomy, millerja@uah.edu
                   2020/07/01

Spacetime diagram of an Enterprise - Klingon battle. The second of a few variations.

References:

jamesamiller

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:Title: Klingons and Federation I
:Author: 	    J A Miller, UAH Physics & Astronomy, millerja@uah.edu
                   2020/07/01

Spacetime diagram of an attack on the Enterprise by the Klingons. The first of a few variations.

References:

jamesamiller

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:Title: Tortoise and Hare - Variation 2
:Author: 	    J A Miller, UAH Physics & Astronomy, millerja@uah.edu
                   2020/06/29

A race between a tortoise and hare. 

References:

jamesamiller

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:Title: Intercepting an accelerating starship
:Slug: Accelerating starship
:Tags:  special relativity
:Author: J A Miller, UAH Physics & Astronomy, millerja@uah.edu, 2020/06/29

Worldline of an accelerating ship in the frame ($\xi$ - $\eta$) of another accelerating ship.

jamesamiller

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:Title: Rindler observers in a reference accelerated frame 
:Slug: Rindler observers
:Tags:  special relativity
:Author: J A Miller, UAH Physics & Astronomy, millerja@uah.edu, 2020/06/10

Worldlines of 9 accelerated observers in the accelerated coordinates $\xi$ and $\eta$ of a reference observer with proper acceleration of unity (in some inverse time units). These observers are called Rindler observers.

jamesamiller

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:Title: Lorentz contraction of an accelerated rocket
:Slug: Lorentz contraction
:Tags:  special relativity
:Author: J A Miller, UAH Physics & Astronomy, millerja@uah.edu, 2020/05/28

Illustration of length contraction during acceleration.

jamesamiller

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:Title: Motion of a rocket with constant acceleration along its length
:Slug: Rocket motion
:Tags:  special relativity
:Author: J A Miller, UAH Physics & Astronomy, millerja@uah.edu, 2020/05/21

Worldlines for parts of a rocket (or three separate rockets), each with the same proper acceleration. 
We see that the middle and left parts of the rocket partially lie in the event horizon of the right 

jamesamiller

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:Title: Motion of stars in the accelerated rocket frame
:Slug: Rocket frame
:Tags:  special relativity
:Author: J A Miller, UAH Physics & Astronomy, millerja@uah.edu, 2020/05/12

Worldlines of stars and a rocket in the inertial $x$-$t$ frame, with light rays from one of
the stars to the rocket worldline.

jamesamiller

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:Title: Motion of another rocket in an accelerated rocket frame
:Slug: Accelerated frame
:Tags:  special relativity
:Author: J A Miller, UAH Physics & Astronomy, millerja@uah.edu, 2020/05/18

Worldlines of a test rocket in the accelerated coordinates $\xi$ and $\eta$ of an observer rocket. This illustrates that a constant proper distance requires different accelerations.