18 ms·
If you fill it up with water ~90% (percentage depending on concrete thickness and sphere radius), it should have a similar density to water, which means you can
by merraksh 10y ago
If you fill it up with water ~90% (percentage depending on concrete thickness and sphere radius), it should have a similar density to water, which means you can lower it with the same sort of winch used in underwater construction.
- danmaz74 10y agoYes, and the whole concept is based on filling the sphere with water...