This is the hardest jump in figure skating.
Four complete revolutions in the air.
It's called a quadruple jump. And it's changing the sport of figure skating.
Today's figure skaters are more focused on jumps than ever before.
That's led to incredible displays of athleticism, but not everyone is happy about it.
For lots of fans, quadruple jumps have done little but make figure skating uglier and more dangerous.
And they may be right.
A quadruple jump is extremely difficult.
The leap requires incredible momentum, precisely divided between vertical lift and spin.
Then you have to fight inertia to contract your body, making yourself spin faster.
