Technology
Space Elevators Could Totally Work—if Earth Days Were Much Shorter
Suppose you could speed up Earth’s rotation so that a day was only half...
Technology
Why Is It So Tricky to Show the Sun, Earth, and Moon in a Diagram?
Earth, sun, moon: three objects in space whose interactions have a pretty big impact...
Technology
How to Run on the Moon
When the elevator is stopped, the two forces are equal and opposite, and the...
