Mercator Projection Map-
Gerardus Mercator invented the Mercator projection map. It was invented in 1569. It is a cylindrical projection map. Any straight line on a Mercator projection map is a line of constant true bearing that enables a navigator to plot a straight line course.
Mercator-
He was born in a poor family. He was born in Flanders. He grew up reading the bible. He was persecuted and held in jail for 7 months.
Tycho Brahe-
Tycho Brahe observed a solar eclipse when he was 13 years old. He became a scientist. He saw a supernova. He observed a comet once and noticed that it was farther away than the moon was.
The Backstaff-
John Davis invented the backstaff in 1590. Davis wrote a book called the sea men secrets. The backstaff was good because you wouldn’t have to put yourself on the brink of blindness determining the latitude of the sun. That’s it!
Devin's Blog 