The Heliocentric Theory, Nicholas Copernicus, Andreas Vesalius, Pencil

The Heliocentric Theory:
Copernicus' theory was slow to catch on. Without Copernicus' theory, there would be no GPS. By 1500, Europe was beginning to change significantly. The theory was physically wrong but accurately projected orbits.

Nicholas Copernicus was born in Poland in 1473 After Newton, Chinese took off. He had diverse talents but he specialized in astronomy. He believed science was possible because God sustains the universe

Andreas Vesalius was born in 1514 in Brussels. He was a doctor. He was interested in anatomy. In 1543, he published a book on anatomy. It had drawings of the insides of humans. The doctors before him did not want to do this hard work.

Pencil:
Writing instruments have been used for a long time. The Romans used an erasable wax tablet. Pencils markings last a long time. Pencils offer benefits to artists. Mistakes can be erased. Drawing can be lighter or darker depending on how hard you push. They can also be sharpened.