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What do you know today, that you did not yesterday?

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Groundhog Jan 2021 3:39pm, 31 Jan 2021 1,968 posts	Quote Pin Groundhog If you spend 6 months on the International Space Station you come back to earth about 0.07 seconds younger than if you had spent that 6 months on Earth. In this case the high speed you travel (General Relativity speed effect makes you younger) wins out over the reduced gravity you experience (which makes you older).
Ocelot Spleens Jan 2021 3:44pm, 31 Jan 2021 30,057 posts	Quote Pin Ocelot Spleens by younger you actually mean less old, otherwise if I spent 58 years in space I would come back an embryo. Time stops at the speed of light ..is that right?
Groundhog Jan 2021 3:48pm, 31 Jan 2021 1,970 posts	Quote Pin Groundhog I believe that is correct OS. I think what I said still works though, as you would be younger than the person who stayed on earth. I didn't suggest time had stopped for either person.
SteveC NordRunner Jan 2021 4:41pm, 31 Jan 2021 436 posts	Quote Pin SteveC NordRunner Several crematoriums in Denmark contribute waste heat to district heating. celsiuscity.eu
Groundhog Jan 2021 7:18pm, 31 Jan 2021 1,973 posts	Quote Pin Groundhog Ancient Egyptians used boomerangs. There may be others as well, but I thought it was exclusively Aboriginal Australians.
Fizz :-) Jan 2021 8:26pm, 31 Jan 2021 5,218 posts	Quote Pin Fizz :-) Bone china does actually contain bones.
The Great Raemondo Jan 2021 8:52pm, 31 Jan 2021 7,167 posts	Quote Pin The Great Raemondo I suspected as much, but today I tested the idea that if you make a meet up on Zwift and invite just one other person who doesn't turn up, you can cycle anywhere in the zwiftosphere without all those pesky other people cluttering the place up. I liked that.
Ocelot Spleens Feb 2021 9:15am, 1 Feb 2021 30,062 posts	Quote Pin Ocelot Spleens what a peignoir is.
Diogenes Feb 2021 9:35am, 1 Feb 2021 57,159 posts	Quote Pin Diogenes [are you wearing one, Wriggers?]
Ocelot Spleens Feb 2021 9:38am, 1 Feb 2021 30,064 posts	Quote Pin Ocelot Spleens Just checking for a friend.