Though generations of schoolchildren have cursed arithmetic, the world was a much more inconvenient place without it. Before the advent of modern arithmetic in the 13th century, basic calculations ...

Converting between units is often something you have to do on the fly, and it is made easier when you memorise some rough equivalents. For instance, an imperial pint is 568 millilitres, but I often ...

This story is free to read because readers choose to support LAist. If you find value in independent local reporting, make a donation to power our newsroom today. Listen 4:44 Though generations of ...