- #1
JDługosz
- 346
- 0
The result was surprising. Their "explanation" was nonsense. What is the reason that the boat is able to move forward?
To those who haven't seen it, they put a fan and a sail on a model cart or boat, and as expected, it didn't move. They made the sail very small and it moved backwards: makes sense as some air missed the sail. Having no sail at all is simply the limiting case.
So they made the sail much larger, and it moved forward! His thought is that the sail could not absorb all the force so some of it reflected. What does that even mean?
To those who haven't seen it, they put a fan and a sail on a model cart or boat, and as expected, it didn't move. They made the sail very small and it moved backwards: makes sense as some air missed the sail. Having no sail at all is simply the limiting case.
So they made the sail much larger, and it moved forward! His thought is that the sail could not absorb all the force so some of it reflected. What does that even mean?