9/5/2023 0 Comments If there was no gravityFewer bone building cells result in a loss of bone mass. Lack of stress on the bones reduces the formation of bone building cells called osteoblast cells. Although the exact trigger is unknown, scientists believe that the reduced stress on bones may be responsible for progressive bone loss, a condition most commonly seen in patients confined to beds due to long term illnesses or old age. This lack of the gravitational pull alleviates the mechanical strain otherwise endured by our skeletal system. The human body tends to relax in a state of weightlessness because it no longer fights the pull of gravity. Without the downward pull of gravity, our body cannot function properly. However, it is important to note that extended exposure to zero gravity is dangerous to our health. Occasional trips to the amusement park for a gravity-defying ride will not harm anyone. Astronauts experience weightlessness at this point and tend to float the ultimate roller coaster thrill every little child dreams of. This cancels out the effect of both forces and results in a state of zero gravity. In other words, the gravitational pull felt by the spacecraft becomes equal to the centrifugal force exerted on the spacecraft. When a spacecraft orbits the earth, the acceleration of the spacecraft, known as the centrifugal force, counterbalances the earth's gravity and neutralizes the gravitational force. A state of apparent weightlessness, zero gravity is best experienced in outer space. Zero gravity can be defined as a state of weightlessness, a condition when the gravitational force is zero. Remember that time you were upside down in a roller coaster and, for exactly one second, your body left contact with your seat? The moment of exhilaration that made waiting in the long queue for that ride completely worthwhile?
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