- #1

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- TL;DR Summary
- This is a discussion about predicting Earth-based time from within a traveling rocket ship.

First, create a rocket ship with:

* a clock

* a 3-axis accelerometer

* a computer

* a 3-axis external thruster

The rocketeer begins in Earth orbit and sets the clock to Earth time. Then the ship takes off on a random trip through our universe. The pilot will arbitrarily point and apply the thruster in various directions. The path of this rocket might also be influenced by various forms of external matter (e.g. planets and stars and black holes).

Miraculously, after a long trip, the disoriented spaceperson finds that their rocket is back in Earth orbit.

Is it possible for the Earth time at arrival to be accurately predicted by feeding ONLY the rocket ship's clock and accelerometer data into the computer?

* a clock

* a 3-axis accelerometer

* a computer

* a 3-axis external thruster

The rocketeer begins in Earth orbit and sets the clock to Earth time. Then the ship takes off on a random trip through our universe. The pilot will arbitrarily point and apply the thruster in various directions. The path of this rocket might also be influenced by various forms of external matter (e.g. planets and stars and black holes).

Miraculously, after a long trip, the disoriented spaceperson finds that their rocket is back in Earth orbit.

Is it possible for the Earth time at arrival to be accurately predicted by feeding ONLY the rocket ship's clock and accelerometer data into the computer?