Today in class we started a new unit about Energy &
Work. This unit was especially interesting because many parts of the concept of
"work" go against your intuition. If you were trying to push a heavy
object, you would think you would be putting in a lot of work because you are
putting in a lot of effort. Yet if the object isn’t budging, then regardless of
how hard you try, there is zero work involved. (in Physics terms) Furthermore,
if you are spinning around but are staying in the same position, then your work
is also zero, regardless of how many times you spin around. This amazed me and
got me thinking about figure skating. Back in Japan, I used to love this figure
skater named Shizuka Arakawa.
(pictured below) Though she may be
spinning endlessly, she is putting zero work in.
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