it needs to be able to orbit and rotate on its axis uless it is venus!
A three sided sail is known as a Lateen sail or also a triangular sail. With a four sided sail one is only able to sail against the wind, but with a Lateen sail it is possible to sail more directly into the wind.
A ship can sail anywhere the water is deep enough.
You don't need to rotate MY tires but, you need to when your car goes left or right when the wheel is straight.
No a boat or sail license is not required if human or sail powered.
Lock exist because you need leveled water to be able to sail or barge from place to place.
Wind!
A lateen sail. Was/is able to be moved left or right. It made/makes ships easier to turn.
No, not if it is well-anchored.
The nosepiece holds the objective lenses in place and is able to rotate to change magnification during microscopy.
He designed a sail that was more efficient. It could maneuver better and was able to maintain better speeds. It made his sail-loft the most successful sailing business in Philadelphia. This sail was not patented.
Quite alot actually!!!!!!!!Owls can rotate their heads right round!!!!!!!!