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- With prolonged stays above 5000 metres, muscle mass deteriorates and the risk of fatal fluid accumulation in the lungs and brain increases. Go higher than around 7500 metres and the magnitude of the oxygen deficit can lead to loss of consciousness and, ultimately, death.
www.newscientist.com/article/mg20627562-300-maxed-out-how-high-can-you-go/
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Sep 20, 2018 · Now, in a paper published on the pre-print server arXiv, three physicists, claim that the maximum gravitational field humans could survive long-term is four-and-a-half times the gravity on Earth. Or, at least you could if you are an Icelandic strongman — and Game of Thrones monster — who can walk with more than half a metric ton on your ...
Sep 20, 2018 · Now, in a paper published on the pre-print server arXiv, three physicists, claim that the maximum gravitational field humans could survive long-term is four-and-a-half times the gravity...
From just 3 m above the surface, you can see the horizon 6.2 km apart. If you are 30 m high, then you can see up to 20 km far away. This is one of the reasons why the ancient cultures, at least since the sixth century BC, knew that the Earth was curved, not flat. They just needed good eyes.
Jul 27, 2021 · If you were in deep space, for example, away from any planets and away from any black holes, stars, anything that would have a lot of gravity, then you would be weightless. You would be able to float around. On the International Space Station, there is only about 90% of the gravity on Earth.
This Earth curvature calculator allows you to determine how much of a distant object is obscured by the Earth's curvature. So, if you ever wanted to estimate the total height of a target that is partially hidden behind the horizon, now you can.
Nov 16, 2010 · The Earth curves away from a horizontal line by 1/8th of inch for every 100 feet of horizontal distance. The Earth's curvature will swamp out your instrument error in less than 100 feet. The statement about the curvature of Earth got me thinking.
While the official threshold of space is 100km above the Earth, the effects of the atmosphere can be detected much higher. Even Hubble, which orbits at almost 600km, could be brought down by the creeping effect of drag. Only satellites in orbits several tens of thousands of kilometres above the Earth can be regarded as effectively permanent ...
