Most of us have little trouble working out how many millilitres are in 2.4 litres of water (it’s 2,400). But the same can’t be said when we’re asked how many minutes are in 2.4 hours (it’s 144).

In The Number Ones, I'm reviewing every single #1 single in the history of the Billboard Hot 100, starting with the chart's beginning, in 1958, and working my way up into the present. Book Bonus Beat: ...

Lateralization of the brain—the tendency for the left and right hemispheres to specialize in different functions—underlies the development of a left-to-right mental number line, according to a study ...