Do you want to hit the shocking water drift?
Anyone knows that choosing a good stone is crucial.
Although the thin and flat stones can hit the maximum number of combinations, scientists at the University of Bristol in the UK, in a paper published in the Proceedings of the Royal Society A on January 4th, recommend that we try fat and curved stones next time.
In fact, they can hit unexpected kinetic effects – huge water bounce (the angle of the throw is also as parallel to the water as possible).
Researchers have studied the role of solid shape and mass in hydrodrift through modeling.
In this context, water drifting refers to the process in which a two-dimensional solid sheet impinges obliquely on a shallow, non-viscous liquid and bounces back.
Their model is able to quantitatively predict the duration and evolution of solids and liquids in this process.
They found that heavier stones produce a “super-elastic response”.
This results in a huge jump – when the stone hits the water surface, the horizontal velocity becomes vertical.
And the heavier stone causes this interaction to generate more force, and as a result it bounces higher than it would have.
They found that the curvature of the curved surface under the stone needed to be increased at a rate of 2/3rd power of the mass.
This allows heavier stones to have a chance of successfully hitting the super bounce.
Too low a curvature will not hit the water drift and too high will not have a super bounce.