At least the water goes down the drain here in the opposite direction that it does for the Austraila/New Zealand guys
ummmm
in yrs gone by (1999), I have tried this experiment many times both when I lived back in NZ and when I was in the USA for 3 months. The problem I discovered was that the water didn't always circulate the same way each time I pulled the plug out
The pulling out of a plug from bath or sink causes the start of motion in the water, and the final rotation direction of the whirlpool down the drain appears to be directly affected by whatever motions were initially produced by pulling out the plug and bringing it up through the surrounding water
There IS a Coriolis effect seen in large scale stuff ... .weather systems - storm rotation, and ocean current motion. What I have considered is that maybe the effect is too small to be seen in small scale systems -- bathtub, kitchen sink etc ?
That's my theory ---- only partly validated hahaha
Would be interesting to experimentally set up a tub of water and have a different plughole opening method that disturbed the water above it in the least possible way. Maybe some sort of multi-bladed iris like camera aperture blades ??
Am sure there's a bl88dy good physics experiment in there ... maybe Nobel prize winning
cheers
Dave
