How would you build a sundial differently in Canada from one in Mexico? How would you build a sundial differently in Canada from one in Mexico?
How have organisms evolved to counteract the force of gravity? How have organisms evolved to counteract the force of gravity?
How does gravity affect the flow of blood in your body? How does gravity affect the flow of blood in your body?
In what sense is the Newtonian universe simpler than Ptolemy’s? In what sense is the Newtonian universe simpler than Ptolemy’s?