Re:A recent paper proposes to bring zeppelins back
by aaron695 on Thursday August 22, 2019 @07:06AM
(#20766702)
There is real no reason to, hydrogen and helium lift approximate the same.
But yes, a vacuum lifts approximately 10% better than hydrogen.
So whatever the structure is, if filled with hydrogen or helium it'd work similar.
If you have some sort of mesh holding in a vacuum it's hard to see it's average density being less than hydrogen or helium or even air at the end of the day.
Point is, everything is possible now. A void wouldn't value add.
But yes, a vacuum lifts approximately 10% better than hydrogen.
So whatever the structure is, if filled with hydrogen or helium it'd work similar.
If you have some sort of mesh holding in a vacuum it's hard to see it's average density being less than hydrogen or helium or even air at the end of the day.
Point is, everything is possible now. A void wouldn't value add.