A new kind of ship, the caravel, was stronger and better built than earlier ships. It had triangle-shaped sails that allowed it to sail against the wind. Ships could now travel far out into the ocean. The
magnetic compass allowed sea captains to better stay on course.
the coronol, a spyglass for navigating
sail boat
All of the sailors that went. They either helped with the stirring or with the passengers
The ship, sail and compass
spain
I would say optics, IE the Microscope.
Fossil Fuels have made manned space exploration possible.
There are quite a few devices that have made sea exploration as you know it possible. Submarines are one of these devices.
Columbus
The two sailing inventions that made the Age of Exploration possible were Caravel, and the Galleon.
Techonlogical inventions which made the Age of Exploration possible included a sextant, which sailors used to navigate by the stars, and a compass.
Advances in technology made these voyages possible. A new kind of ship, the caravel, was stronger built than earlier ships. That is what made the Europeans able to begin exploring foreign lands in the 1400's.
The Caravel
they had a globe that was flat and a map
the coronol, a spyglass for navigating
Bathyscapes and submersibles have.
The compass and the astrolabe made navigation by sea, and therefore exploration, possible.