How do airport and concert venue metal detectors work? Somehow, a seemingly plain rectangular doorway can figure out if I left my keys in my pocket. Read More
How many people have ever lived on Earth in all of time? Is it even possible to answer this question? Yes, it is possible. Read More
It's a basic question, but most people still don't know: Why is the sky blue? Here's a basic explanation that will get you a win at trivia or on a school report. Read More
I was just about to throw out some old AA batteries when my girlfriend stopped me and said that I... Read More
Why is bacon so good? What is it about those thin slices of meat that makes me want to eat a pound of it in one sitting? Read More
Almost any kid raised in California will probably tell you that it’s illegal to a California poppy. But is it true? Read More
You probably remember messing around with helium balloons and having a great time sounding like Alvin and the Chipmunks. But why does that work? Read More
Is there some trick to choosing a ripe, sweet, really good watermelon? Here are some things to look for to get the most delicious fruit. Read More
Why do people have trouble remembering their dreams? And more to the point: is there anything you can do to improve your dream recall? Get some tips here! Read More
Is there actually a difference between a turtle and a tortoise, or are the terms pretty much used interchangeably? Find out here! Read More
If you think you felt a little shaking going on, how can you find out for sure if there was an earthquake or not? We know all the best places to look. Read More
Considering all the technology available now, you may wonder: Are there any shipwrecks - or pirate treasure - yet to be discovered? Read More
Are there any differences between crocodiles and alligators, or are they just different names for the same thing? Read More
After you toss your empties into the recycling bin, where do your bottles and jars go? The glass recycling journey is simpler than you may think. Read More
What does Einstein’s famous equation E= mc2 actually mean? What equals what what? Early in the nineteenth century, Albert Einstein,... Read More
An itchy, painful rash from poison oak is no fun at all - and just because you never had a problem before doesn't mean you won't have a reaction. Find out more here! Read More
What creates meteor showers, and where can you find out the best times and places to see lots of these shooting stars? Read More
What is a solar flare, do they really cause problems here on Earth - and should you worry? Learn more here. Read More
How come fish have mercury in them - because isn't seafood supposed to be healthy to eat? Read More
If you want to know the right kind of grass for a backyard lawn in your region, we have some tips so you can live on the side where the grass is greener. Read More