Why do I cry when I laugh hard?
We don’t know for sure, but crying and laughing are both ways that your brain soothes you and reduces stress. Crying while laughing could also just be because your tear ducts are getting stimulated by your face muscles.
How can we see the Milky Way if we are in it?
Imagine the Milky Way galaxy like a stack of pancakes.
Why is “W” called double U and not double V?
Many other languages call it a “double V”. English hasn’t caught up with the trends.
Why are you more buoyant in salt water?
While you may feel weightless, I assure you, you are not.
Why do we call our parents "Mom" and "Dad"?
Not many folks call their parents “Denise” and “Bill.”
What does “adopt a highway” mean and how does it work?
What do these adoptive road parents have to do to earn those signs?
Why is soccer not a popular spectator sport in the United States?
We Americans sure do like American things.
Why is it easier to balance a bike in motion?
It’s easier to ride a bike than to understand why it’s easy to ride a bike.
Why are instruments in different keys?
Did you know that a C played by a trumpet is not the same C played by a piano?
Why is a day 24 hours? Why is an hour 60 minutes?
We have to thank some ancient minds for these special numbers.
Why do dogs have an extra paw pad on their front legs?
These corn-chip-smelling paw pads serve a helpful purpose.
Do elevator “Close Door” buttons really work?
It depends. If you're in the United States, probably not. If you're outside the U.S., probably so.
Why do we eat cake on birthdays?
Your birthday wish for birthday history has been granted.
