mileymo
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What speed does a ship traveling through deep space need to travel at for 1 day on the ship to equal 1 day on earth?
If by 1 day you mean 24 hours measured by a clock on Earth and 24 hours measured by a clock on the ship, then they represent the same amount of time regardless of the speed of the ship relative to Earth. During the 24h measured by a clock on Earth a person on Earth would have aged 1 day, during the 24h measured by a clock on the ship a person on the ship would also have aged 1 day.mileymo said:What speed does a ship traveling through deep space need to travel at for 1 day on the ship to equal 1 day on earth?
mileymo said:What speed does a ship traveling through deep space need to travel at for 1 day on the ship to equal 1 day on earth?
SlowThinker said:I think it's 11km/s in the nearby Solar system, up to some 500km/s outside the Solar system, and even bit faster outside the Milky Way.
That's only for an observer on Earth ! The guy in the ship thinks it's the other way around !mileymo said:What I mean is, if you travel at 87% the speed of light, then 1 day on that ship is equal to 2 days on earth.
In your line of reasoning: zero. Stay put on earth.So, is there a lesser percentage of the speed of light at which time would be equal for both the ship and the people on earth?
There is - relative speed zero, meaning that the ship is not moving relative to the earth.So, is there a lesser percentage of the speed of light at which time would be equal for both the ship and the people on earth?