5 ms·
In the first video the barrel roll [0] followed by a person in an EVA suit in the interior of a (different) vessel [1] made me wonder about zero-gravity spatial
by mistersquid 9y ago
In the first video the barrel roll [0] followed by a person in an EVA suit in the interior of a (different) vessel [1] made me wonder about zero-gravity spatial relationships.
(Before continuing, please excuse my ignorance in the subjects of gravitational physics and aeronautical nomenclature. Also, I do not intend to troll. I'm honestly wondering. I'm also a little embarrassed at the brainteaser-like character of my question.)
Presume a human being is inside a vertically asymmetrical vessel with no interior atmosphere. The vessel is at rest with regard to a nearby (< 1 million kilometers) planetary system (similar to ours) and the vessel is in (essentially) zero-gravity. If the vessel accelerates around the axis that runs stem to stern (executes a barrel roll) will the occupant spin with the vessel or will the vessel spin around the occupant?
[0] https://youtu.be/lJJ9TcGxhNY?t=106 https://youtu.be/lJJ9TcGxhNY?t=106
[1] https://youtu.be/lJJ9TcGxhNY?t=116 https://youtu.be/lJJ9TcGxhNY?t=116
EDIT: Change "subject" to "subjects".
- Mithaldu 9y agoYou can test it on earth! Take a glass, fill it with water. Put something in it that floats, keep it away from the sides. Rotate the glass.
- mistersquid 9y agoThank you for your suggested experiment, though the set ups are different in one crucial regard. The water molecules interact with the glass, each other, and the floating object. The vessel's occupant (as mentioned in my earlier post) is in the vessel's interior which has no atmosphere (vacuum).
- rwallace 9y agoThe vessel will spin around the occupant. The glass of water test is equivalent to the case where the vessel contains air, and the answer is the vessel still spins around the occupant for a while, until the fluid transmits the motion to the occupant.