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6

Kinetically. Let the star run. It is a pain in the butt to shut down and anyway it is still really hot once you do. Also it is liable to restart while you are poking around in the guts. Plus if you shut it down it stops making stuff for you. That is like cutting down an apple tree to get at the apples. Instead, kick chunks out of the center. Here is ...


13

It is called star lifting, and is a known concept. Basically, you generate a magnetic field which channels solar radiation through the poles. The magnetic field is created using orbiting electromagnets powered by the sun itself. There are three variations of this technique in Isaac Arthur's Youtube series. https://youtu.be/pzuHxL5FD5U


0

Mining a star when you want to build a Dyson sphere is the high tech version of the slapstick joke of the man sawing the branch on which he is seating. If you mine the star you switch it off, and once the car it's off you have no power supply for your Dyson sphere. As usual, you start mining out planets. Once you are in transhumanism you don't need ...


2

Yes, there will be wind shear, but it is irrelevant: On Earth, there is a 1656km/hr difference over a distance of 10,000 km between how fast the air is moving at the poles and how fast it moves at the equator. Because it is so spread out, the sheer is so minor that this coriolis effect is only noticeable at the global scale. On your O'Niell cylinder, you ...


-1

Thinking about blenders got me thinking about tornadoes. If we consider the largest recorded tornadoes, the 2013 El Reno tornado was 4.2 km wide with max wind speeds of 302 mph. An O'Neill Cylinder with those specifications only produces 0.4g acceleration. With an O'Neil cylinder we are literally talking about bottling up a supertornado and selling lots in ...


2

Overall, you'll get convection and Coriolis effects from air movement just as you would on a rotating planetary surface. The biggest difference, relative to Coriolis, is that the axis of rotation is parallel to the ground and there's a big velocity difference over a relatively small height range. On Earth, the Coriolis effect on a strong updraft near the ...


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