Back in the old days before mattresses were made with foam and Slinky-like springs, making your bed was a lot harder work than it is today. Read on to find out why – and spring to the math in beds!
Peacocks are those birds with the fancy, flashy feathers they fan out into a semi-circle to impress the female peahens – and us humans. So just how many of those feathers does it take to create this colorful arrangement? Read on to find out, and do the fancy-feather math!