For example,
a spinning ice skater spins slower with extended arms and faster when his arms are pulled in.
Just as
a spinning ice skater can spin very fast by pulling in her arms and legs tight about the center of her body, a star will spin faster when it brings its material closer to its center.
Not exact matches
This influenced Earth's rotation, akin to an
ice skater jutting out her arms to
spin slower, contributing toward a lengthening of the day by milliseconds over the past 2,500 years.
«Think of an
ice skater who is
spinning,» says Felix Landerer of the Max Planck Institute for Meteorology in Hamburg, Germany.
The idea that the jets and outflows came directly from the disk and served to rid it of angular momentum seemed as absurd as a
spinning ice -
skater letting go of his partner and having her shoot straight up into the air.
Like an
ice skater bringing her arms inward to
spin faster, that overall shift of mass is speeding up Earth's rotation, Morrison says.
«This makes the black hole
spin faster — a bit like an
ice skater doing a pirouette.»
Particles such as atoms and electrons possess
spin, or the internal angular momentum that is analogous to a
skater spinning on
ice.
While other
skaters clearly do the difficult jumps and
spins in Harding's unique style, Robbie trained for six months with Kawahara to make her on -
ice performance as effective as her off
ice persona.