A single moveable pulley.
simple ramps, sleds, and leversthey also made carving tools and invented the sails and boat docks
simple pulley simple pulley
No, a pencil sharpener is not any kind of pulley.
It is a fixed pulley
A movable pulley. Kind of anticlimactic, isn't it?A pulley that is attached to something that isn't moving is called 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
The kind of pulley has an ideal machanical advantage of 2 is called "Movable Pulley". From, Bryan Hollick
Lanteen sails
Sail kind of to the side/diagonal of them.