送交者: oldwolf 于 2005-5-05, 11:02:05:
回答: 真的有那力吗? 由 whoami 于 2005-5-04, 23:48:26:
Opposite in the southern hemisphere.
The ideal status means the water has no any 旋涡 when you open the sink.
If you generate a 旋涡 when you open the sink, whether turning clockwise or anti-clockwise will depend on the sing (+/-) of total of the initial vortex and the Coriolis parameter.
Coriolis parameter = 2 * 2 Pi *sin(latitude) / (24 * 3600), + in N. Hemisphere, - in S. Hemisphere
Oldwolf