leonardo da vinci : the codex leicester

why does a body move when something strikes it?

when a moving object strikes a stationary one, then the force of the impact on the object struck continues on to the opposite side of the side that was hit. the moving object is only affected by the side of the impact, which also corresponds with its direction of movement. this object stays where it is and gives up all momentum. the object that was hit moves in the direction of the force which is now continued in and through it, and continues to move until the force of this movement is exhausted. the movement exhausts itself because there is no permanent force being applied to the object that was hit.






  1. why does something move?
  2. how can flowing water consume its momentum when it encounters an obstruction?
  3. why are the waves of descending rivers slower than the water flow of the river itself?
  4. why does a body move when something strikes it?
  5. under what conditions can a person on a see-saw not jump up?
  6. why does waves look like crescents when viewed from the side?
  7. what happens to the waves when water crashed into an obstacle?
  8. what effects do the slope of the obstruction and the angle of impact have?
  9. why doesn't viscous water flow continually throungh a bent pipe?
  10. does the weight of water vary according to how one changes the slope of a pipe filled with water?
  11. how can one see that movement separates from its cause?
  12. where does the wave break?
  13. what causes cyclones?
  14. can a special dam influence the impact of the water?
  15. what must an especially strong dam look like?
  16. how can one simulate the collapse of a wave?
  17. how does air, once it is immersed, escape the water?
  18. what machine can be used to ram piles into the ground?

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