
The First Fast Driver
You see speed limit signs lots of places while driving: in neighborhoods, on highways, in front of schools. But we bet you’ve never seen a

You see speed limit signs lots of places while driving: in neighborhoods, on highways, in front of schools. But we bet you’ve never seen a

When you wear a wool sweater, have you ever stopped to wonder what animal was wearing it before you? How about how many sweaters that

If you’ve ever seen those weird charts of letters like the one here, you know that they don’t spell out words. But what exactly do

A lot happens in one year. But just how much happens in one second? How far does the Earth travel? How many babies are born?

Tonight is New Year’s Eve, when people everywhere ring in the new year. But 2015 doesn’t begin at the same time for everyone! Read on

They say yawning is contagious from person to person: you see one person yawning, and that makes you need to yawn. But does your yawning

Ever wonder how many airplanes are flying above you and just how they know where to go when they land and takeoff? Read on to

Today is the winter solstice, when the southern half of Earth is tilted towards the sun and the top half, the north, is tilted away.

Sitting in traffic got Bedtime Math fan Cecilia H. thinking: how many cars could you line up end to end from Los Angeles to New