and work back one variable at a time to find the perfect set of factors. The prototype in the video below did a respectable job skipping stones, but it was nowhere near optimal. [Mark] then ...

This option is great if you want to cheaply cut a few stones and you're not fussed about a perfect finish, although the ...

His work on skipping stones was small cheese compared to that ... the following edge hitting the water before the front, a perfect angle for takeoff. The energy of the throw propelled the stone ...