The coriolis effect was observed on Cannonballs being shot.
It actually has to insignificant an effect to change the way the toilet flushes, shooting the water out at a left or right angle has a much more significant effect.
I've read several non-fiction books that discuss this (in minor detail).
also nowhere in your coriolis effect link does it mention the word toilet.
"The Coriolis deflection is therefore related to the motion of the object, the motion of the Earth, and the latitude. For this reason, the magnitude of the effect is given by 2 sin , in which is the velocity of the object, is the angular velocity of the Earth, and is the latitude."
Another thing to notice is that cannon balls travels distance , your water being flushed travels downward.
Also is this your
discovery.com link?because it says itself that the corilis effect has too little of an effect.
"Ah, but this has all been a cruel and painful joke.
.
It turns out that even a toilet a mile wide might still be too tiny to exhibit Coriolan tendencies -- the water simply isn't hovering over enough latitudes to feel The Force. It takes a mass of air many miles in diameter to demonstrate the infamous toilet twirl, and even then, Coriolis is often foiled by friction with the ground and barometric high jinks.
So while all of this spinning and shoving can help explain prevailing winds and other large-scale phenomena, the twirl in your toilet is determined by jets of water filling the bowl, the shape of the drain, or, for those who cannot let this myth go -- and I've encountered many of them -- the Coriolis Fairy."
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It does seem you believe me about that the equinox isn't the reason you can stand an egg on whatever day it occurs.
But just incase you disagreed, you can stand it on anyday (either end) you want.
It will take you alot of practice to stand it on the skinny end.