Kind: captions
Language: en
[Music]
oh my gosh it's fantastic are you
kidding
there is no single theory that explains
the behavior that we actually observed
there's just so much that we don't know
the sport is called curling because the
stone will curl as it goes down the ice
there's much more strategy possible when
you can curl a stone around other stones
on the ice you can position where a
stone hits another stone you can bump
other stones out of the way
[Music]
on ice it curls in the same direction as
the rotation throw it clockwise then
it's going to curl to the right throw it
counterclockwise then it's going to curl
off to the left it's weird
[Music]
the ice guys have kind of like a jet
pack or if you're thinking like the
ghostbusters they spray fine droplets of
water over flat ice then you get these
little bumps on the ice which are called
pebbles those bumps when they freeze are
not uniform in size so part two is that
we nip which is to take a big metal
blade shaving off the very top of it so
that we have a uniform running surface
across all of the bumps we think the
pebbling of the ice is very important to
the way that curling rocks behave
it sticks and pivots
grabs the pedal as it goes
[Applause]
[Music]
there's a little bit of melting that
happens
[Music]
[Applause]
basically a rock is following the
scratches
[Music]
understanding the nature of slipperiness
on ice is not a trivial matter at all it
could have practical
[Music]
as long as it applications in the
direction we're expecting we don't
really care what the underlying physics
is my theory is is it does what it does
and i just have to accept it and go with
it
you