leonardo da vinci : the codex leicester

what causes cyclones?

when two air streams collide such that their respective lines of movement produce an obtuse angle as soon as they meet, then the two storms circle around each other and form a column. this air in the form of a column becomes heavier and hence also acquires the ability to move objects with less weight, which normally could not be moved by air alone. this is the case, for instance, when such a column of air strips away an area of sandy soil, so that the sand, stones and seaweed are tossed through the air. if the column then rises over the sea, everything mixes with the swirled up water and becomes a column of thick air.

 

zitat

 

trennlinie

moving

  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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