Daily Archives: January 22, 2021

I learned about two inventions this week.  The Heliocentric theory, and the pencil.   The first invention is the Heliocentric theory.  The Heliocentric theory is the theory which the Earth and planets revolve around the Sun at the center of the Solar System.  It impacted history because the Heliocentric theory helped start the scientific revolution.Continue reading “Week 18 Inventions”