Learn how to calculate the force required to reach and surpass the International Space Station (ISS) in orbit! In this physics tutorial, we break down the principles of orbital mechanics, ...

Legend has it that Isaac Newton had the moment of inspiration that would lead to his theory of gravity when, on a warm afternoon, he saw an apple fall from a tree and wondered why it should fall down ...

Learn how to calculate the spin rate required for a spacecraft to generate artificial gravity at half of Earth’s gravity! In this video, we break down the physics behind rotational motion, centripetal ...

Physicist Markus Aspelmeyer vividly remembers the day, nearly a decade ago, that a visitor to his lab declared the gravitational pull of his office chair too weak to measure. Measurable or not, this ...