Technology

Radisson and des Groseilliers used some technology on their expeditions. One of the things they used was the cross-staff. The cross-staff was a T-shaped tool and was used by sailors to find how far north or south they were from the equator.

Another invention that was used was called the sextent, which was used to measure the height of stars and planets above the ocean, to determine where they are at sea.

A third invention that was used was a compass. It was used to tell if they are facing, north, south, east, or west, or in between.