Weightlessness

Weightlessness is the state of not experiencing the effects of gravity. Most people assume there is only weightlessness in a no gravity situation such as on the space shuttle. But what most people don't realize, if you are in a state of freefall you experience weightlessness. You are in a freefall skydiving, on a rollercoaster at an amusement park, or when NASA trains astronauts.
When riding a roller coaster, there are times when you experience weightlessness or think you are experiencing weightlessness. At the top of a loop it feels like you are out of your seat experiencing weightlessnes…