THO
=20
Thomas O'Neill
Physics
Shenandoah Valley Governor's School
-----Original Message-----
=46rom: Anthony Lapinski [mailto:anthony_lapinski@PDS.ORG]=20
Sent: Monday, January 30, 2006 3:15 PM
To: PHYS-L@LISTS.NAU.EDU
Subject: tea
When tea is stirred, why do the leaves end up in the CENTER of the cu=
p?
After all, they are more dense than the surrounding water, and I woul=
d
expect them to be "thrown to the outside" (like a centrifuge) due to
their
larger inertia. I am thinking of the cork/water demo, where a cork is
suspended (upside down) by a string in water. If you hold the bottle =
and
spin around, the cork (with less inertia) moves toward the center of =
the
circle. Why do the tea leaves behave differently? Does it have to do
with
some internal forces within the spinning tea?
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