4 ms·
Without running the numbers, just looking at the mass of the sail vs. the mass of the ship, is say the effect is neglible.
by ansible 8y ago
Without running the numbers, just looking at the mass of the sail vs. the mass of the ship, is say the effect is neglible.
- marmadukester39 8y agoI know of a company that makes these as retractable spinning cylinders