The gravitational pull of the earth (the force which pulls everything towards the ground) is like a rope which keeps the satellite from flying away. Everything that goes up has to come down. It is only a matter of time before a satellite comes back to the earth. As time goes by the...
Assuming that proper radiation shielding is provided, the predominant environmental factor of spaceflight is microgravity—also known as weightlessness. Once settled on a new planetary body such as the Moon or Mars, these will have a gravitational regime different from the one on Earth (1 g). All...
1) Gravity – the constant attraction downwards is an essential grounding force for life on earth. However, gravitational pull acting on a curved spine will further compress the concave or short and tight areas which will reinforces the curvatures. 2) Muscle Imbalance – this has been cited as...
If you want a short answer, the word is "forces."People stick to Earth's surface even though the planet is rotating at high speed, and even there's no glue on the soles of our feet. The reason is simply that gravity bonds us to the planet with enough force to stop us whizzing ...