simple ramps, sleds, and leversthey also made carving tools and invented the sails and boat docks
It is a fixed pulley
He had the caravel which has 3 sails.
That depends how fast it sails. If it sails with a speed of 25 knots -which I doubt-, it will take one hour. A more typical speed for that kind of vessel would be 8 knots, and then the trip would take a little over three hours.
A flagpole is a pulley.
Single movable pulley
Lanteen sails
Sail kind of to the side/diagonal of them.
No, a pencil sharpener is not a kind of pulley. A pencil sharpener is a tool used to sharpen pencils, while a pulley is a simple machine that consists of a wheel on an axle, used for lifting and moving objects.
The kind of pulley attached directly to the object being moved is known as a fixed pulley. It acts as a redirection point for the rope or cable, changing the direction of the force applied. However, it does not provide any mechanical advantage.
depends on the kind of boat :)
depends on the kind of boat :)