A common scam at the equator! - d1d2everythinghd

These fake coriolis experiments are performed in many countries to the amazement of onlookers. Here's how they do it: Firstly, a container filled with water is set up perfectly on the line of the equator. The plug is removed and the water drains – apparently without a vortex being created in either direction. Next, the container is moved a few metres away from the line, and the experiment is repeated. The water now forms a vortex! Magic. Well... not quite. While the Coriolis effect is very real, its effects would actually never be noticeable in this sort of situation. It’s actually weakest at the equator. The experiment above is a trick because the container of water in the first experiment was almost motionless before the plug was pulled, while the second one was poured in with momentum, which caused the vortex. In reality, variables such as how you pour water in, the shape of the tub, and many other factors will dictate how the water drains, not the hemisphere you are in. https://www.gadventures.com/blog/busted-top-3-equator-line-tricks-debunked/