The Truth About Toilet Swirl: Synced for you…

You’ve likely heard that the directionality of the water swirl in a toilet flush is due to the Coriolis effect. It rotates counter-clockwise in the northern hemisphere and clockwise in the southern. However, that’s not exactly accurate. While the Coriolis effect does happen, it’s not significant enough to influence a toilet swirl.

Smarter Every Day and Veritasium have teamed up to explain just that, except they’ve done something marvellous this time. There are two videos, one on each of their channels that have to be played simultaneously for you to have the maximum viewing enjoyment. Yes, it’s the easiest thing to do, but I’ve made it a bit easier for you.

Roman Numerals

A few months ago, I had posted two videos about Roman Numerals.

In the first one, titled Roman Numerals, I spoke about the Roman Numeral system itself. I started with numerical face values and how the numbers were supposed to be written down. The numbers are inherently additive. However, we’ve often seen the subtractive forms of the same numbers and I’ve talked about that at length. Plus, I’ve also discussed addition and subtraction, both in the additive and subtractive forms of the operands.