#7 How much water could it boil in half an hour? A glass of water? A bathtub of water or entire ocean?
#10 You would never get to the "other side". Where is Earth's center of gravity?
#15 Why would light travel AROUND the Earth? The Earth gravity is not strong enough to make light travel around. Maybe it's hypothetical "travel around"?
#20 Yes, because Sun is not an empty space. You can learn about this from "The Feynman Lectures on Physics".
In 1961, astronomer Frank Drake came up with an equation to estimate how many detectable civilizations might exist within our galaxy. Today's optimistic estimate is 72, 800.
#7 How much water could it boil in half an hour? A glass of water? A bathtub of water or entire ocean?
#10 You would never get to the "other side". Where is Earth's center of gravity?
#15 Why would light travel AROUND the Earth? The Earth gravity is not strong enough to make light travel around. Maybe it's hypothetical "travel around"?
#20 Yes, because Sun is not an empty space. You can learn about this from "The Feynman Lectures on Physics".
#24 - LOL!! what?!.... I did not know that one. Great picture for it too.
#10 You would never get to the "other side". Where is Earth's center of gravity?
#15 Why would light travel AROUND the Earth? The Earth gravity is not strong enough to make light travel around. Maybe it's hypothetical "travel around"?
#20 Yes, because Sun is not an empty space. You can learn about this from "The Feynman Lectures on Physics".