History lesson #90: The Heliocentric Theory, Vesalius, ✏️And The Pencil ✏️

Lesson 86: The Heliocentric Theory Lesson 87: Copernicus Lesson 88: Vesalius Lesson 89: ✏️The Pencil ✏️ The Heliocentric Theory / Nicolaus Copernicus Nicolaus Copernicus invented the The Heliocentric Theory, and challenged Aristotle’s theory that the Earth is at the center of the universe. Now, into the theory that has been proved out of a theory …

History lesson: #70

Lesson 66: Spectacles Lesson 67: Mechanical Clocks Lesson 68: Paper Mills Lesson 69: Robert Grosseteste Eye Glasses (Spectacles) Glasses had a BIG impact on history. They allowed scholars to work later into their life. This boosted books production. There was no more fear of getting old. As time went on, until Teddy Roosevelt’s life, glasses …

🦈Sharks🦈(Part B) Basking Sharks, And Whale Sharks

Basking sharks and Whale sharks are filter feeders. This means that they move through the water, and it goes through the mouth, and the plankton (Which they eat) gets caught by a filter, before the water exits through the gills. (More on the way fish eat here.) These sharks are the biggest fish in the …