gravity
What Is Terminal Velocity?
The higher you are when you jump, the more it hurts when you hit the ground. That's because the Earth's…
Eccentricity
When it comes to space, the word eccentricity nearly always refers to orbital eccentricity, or the eccentricity of the orbit…
Gravity Formula
The gravity formula that most people remember, or think of, is the equation which captures Newton's law of universal gravitation,…
Gravity Equation
There is not one, not two, not even three gravity equations, but many! The one most people know describes Newton's…
Pioneer Anomaly
[/caption] Named after the Pioneer 10 and 11 space probes, the Pioneer anomaly refers to the fact that they seem…
What is Loop Quantum Gravity?
The two best theories we have, today, in physics – the Standard Model and General Relativity – are mutually incompatible;…
Gravity Constant
[/caption] The constant of gravity, or gravity constant, has two meanings: the constant in Newton's universal law of gravitation (so…
Gravity for Kids
[/caption] What keeps us from floating off into space? Why does something I drop fall to the ground? Kids are…
Artificial Gravity
[/caption] Have you ever noticed that astronauts float around in the space shuttle and in the International Space Station, while…
What Causes Tides?
Tides refer to the rise and fall of our oceans’ surfaces. It is caused by the attractive forces of the…