I think as a mold. when the Flood came in Genesis, i believe that when the fish were washed away, the kinda made a mold in a rock.
If you could please give me a already given speed I could estimate it. since there is no speed shown you wouldn't be able to estimate the speed of the moving train.
Gravity.: Gravity is the force that acts at a right angle to the path of an orbiting object.
Newton's first law of motion is that an object in motion will tend to stay in motion unless an external force acts upon it.
