Keeping Still

I used to tell my ex-colleague to keep still. He seems to be very impatient while waiting. Actually I am very wrong. We are actually moving at all times. Let me give you an account.

1. Our hearts are pumping all the time.
2. Our blood are circulating all the time.
3. Our brain are working all the time sending and receiving signals.
4. Our digestive systems are working all the time extracting nutrients.
5. Our cells dies and being replaced all the time.
6. Our skin are being replaced by new dead cells.
7. Our hair is growing all the time.
8. Our skin moves in the area around the chest when we breath.
9. Oxygen and nutrients are exchanged between the blood and the body all the time.
10. We are moving around the axis of earth at 0.5Km/sec.
11. We are moving around the sun at 30km/sec.
12. We are moving around our milky way galaxy at around 250km/sec
13. We are moving in relation to other local groups of galaxies at 300km/sec.
14. Who knows whether the whole universe is actually moving. (Movement as realized by Einstein is only measured in relation with something).

So if you say you are keeping still, it could be an understatement. Only certain part of your body are keeping still - dead cells and the inorganic part of the bones and nails. The keeping still part is only in relation to the surface you are standing on. Everything else is moving.