Multiplication, division and square roots.
John Napier
Napier's Bones. It was a type of abacus.
Because he wanted a simple calculating device. (It's "bones" actually.)
napiers bone
He invented the insert device, which was stuffed into a hole drilled in Napiers bones, which allowed a metal plank to go in. Although it wasnt a great improvement, his science in the insert device helped to the creation of Condoms by his son Samuel.
I do not think so.
napiers bone
well i think they just kept using it as it was hard back in those days so it just done it its self
Bones used in jumping jacks will be the bones of the arms and legs. The extremities will move when jumping jacks are done.
yes they do by using calccium
by using their legs, slithering, or swimming.
nothing