## malutella 2 years ago Explain why the faster Earth spins, the less a person weighs, whereas the faster a space station spins, the more a person weighs.

1. ksaimouli

It is gravity that pulls us toward earth, this force is counteracted by centrifugal force, the earth spinning! The faster the spin the higher the centrifugal force, this is good to an extent on earth. However on a space station that uses rotation as a form of artificial gravity the faster rotation causes a higher perceived gravity to those subjected to it. With a high enough rotational speed (like can be generated in a centrifuge) life could be threatened or extinguished. So on earth we are thrown away from the pull making us appear lighter, however the spin on a space station makes us feel heavier than the force that is present on that space station. Compare the mass of a man made space station to the mass of the earth and that will give you an idea of the difference in gravity forces at work

2. malutella

3. malutella

-.-

4. ksaimouli

yup but if u have any question or if u cant understand u can ask me

5. ksaimouli

but i found this is interesting

6. malutella

i want a brief explanation please

7. ksaimouli

ok think we r standing outside the earth if the earth spins we r being pushed away from it

8. ksaimouli

but in space station people will stand inside so theyy r pused aganist it

9. ivanmlerner

If you are traveling in a straight line, and something changes your direction you feel a force, thats what happens in the space station:|dw:1352235756999:dw| You are going straigh and somthing pulls you upwars, so you fees aa force thats "pulling you down" like when you pass your car on a hole on the ground and feel a force trowing you up. In the rotation of the reath the same thing happens, but since gravity is very strong, it cant trow you out of earth, so it just makes you feel lighter

10. ivanmlerner

Rotate yourself and you will notice that all your blood goes to your hands

11. ivanmlerner

The blood feels its being puled because its natural behavior is to go outside of you, but since this cannot happen it feels you holding it

12. malutella

Alright i think i get it thanks