If you want to learn how the plan­ets move, you’ll almost cer­tain­ly go to one place first: Youtube. Yes, there have been plen­ty of worth­while books writ­ten on the sub­ject, and read­ing them will prove essen­tial to fur­ther deep­en­ing your under­stand­ing. But videos have the capac­i­ty of motion, an unde­ni­able ben­e­fit when motion itself is … Con­tin­ue read­ing A 16th-Cen­tu­ry Astron­o­my Book Fea­tured “Ana­log Com­put­ers” to Cal­cu­late the Shape of the Moon, the Posi­tion of the Sun, and More