Gravity and vacuum are not mutually exclusive - you always have to deal with gravity forces, although they become negligible pretty quickly when you get into and then leave orbits.
As to the specific claim, I suspect that the experiments they are currently doing (in vacuum chambers on earth) have gotten to the point that they are measuring the propulsion system producing more thrust than it’s own weight (T/W >1), which would technically be enough thrust to overcome gravity. Even if it wasn’t practically useful for actually getting to orbit, that amount of thrust on a reactionless motor would be incredible, and would totally unlock the solar system for us.
they become negligible pretty quickly when you get into and then leave orbits.
You’re not wrong, but it’s worth noting that in low earth orbit (e.g. typical ISS orbiting altitude) earth’s gravity is still 90% as strong as at sea level. Astronauts on the ISS are weightless not because they escaped earth’s gravity, but because they’re continuously falling.
If I remember right that is the slang term for a device used to simulated high force situations astronauts are expected to experience. So named for the frequent effect
Much of the same could be said of the EmDrive. This is one of those extraordinary claims which requires extraordinary evidence, especially given the recent history of the topic.
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Make it make sense
Gravity and vacuum are not mutually exclusive - you always have to deal with gravity forces, although they become negligible pretty quickly when you get into and then leave orbits.
As to the specific claim, I suspect that the experiments they are currently doing (in vacuum chambers on earth) have gotten to the point that they are measuring the propulsion system producing more thrust than it’s own weight (T/W >1), which would technically be enough thrust to overcome gravity. Even if it wasn’t practically useful for actually getting to orbit, that amount of thrust on a reactionless motor would be incredible, and would totally unlock the solar system for us.
And now it makes sense. Thank you!
You’re not wrong, but it’s worth noting that in low earth orbit (e.g. typical ISS orbiting altitude) earth’s gravity is still 90% as strong as at sea level. Astronauts on the ISS are weightless not because they escaped earth’s gravity, but because they’re continuously falling.
its* own weight.
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The… vomit comet?
If I remember right that is the slang term for a device used to simulated high force situations astronauts are expected to experience. So named for the frequent effect
Oh, interesting! Thanks for explaining.
https://www.livescience.com/29182-what-is-the-vomit-comet.html
So in theory if you built a vacuum tube from the earths surface to “space” and sealed it at both ends you could have a frictionless elevator
Ex NASA employees also gave us Depth Dwellers so that doesn’t hold much weight with me.
Counterpoint: Another ex NASA employee invented Super Soaker, so there’s some weight in this
Much of the same could be said of the EmDrive. This is one of those extraordinary claims which requires extraordinary evidence, especially given the recent history of the topic.