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Today's Mind-blower
10 Things You Should Never Trash

There are things we consciously recycle, such as used clothing, and there are things we toss without a second thought, like foil and rubber bands. But the latter have uses you may never have dreamed of.

    • 10 Historical Words That Don't Mean What You Think
      people 10 Historical Words That Don't Mean What You Think

      You may call your cousin a Luddite because he still plays CDs, but the word didn't originally mean someone who's a technophobe. What other historical words do people use incorrectly?

    • 10 Weird Creatures From the Mariana Trench
      animals 10 Weird Creatures From the Mariana Trench

      The Mariana Trench is the deepest place on Earth, and we're still in the dark about much of the life that calls it home. Here are just a few of the trench's eye-popping residents.

    • Is it possible to cry blood?
      health Is it possible to cry blood?

      Poetry is full of references to salty and bitter tears, but there's not much about bloody tears. Besides movie villains who weep blood, is this phenomenon real?

    • 10 Most Deceptive PR Campaigns in History
      money 10 Most Deceptive PR Campaigns in History

      Americans didn't always eat bacon for breakfast — it became a staple thanks to a cleverly created public relations campaign in the 1920s. And diamonds for engagement rings? Another clever PR job.

    • What's an accretion disk?
      science What's an accretion disk?

      When you think about massive, mysterious cosmic bodies like accretion disks, the water swirling around your bathtub probably isn't the first thing to come to mind. But hey, physics works the same magic on all scales.

    • What constitutes a medical emergency?
      health What constitutes a medical emergency?

      We all know what to do in case of a medical emergency (get to the ER), but are you really qualified to recognize a true emergency when it happens?

    • 10 Things You Should Never Buy Online
      money 10 Things You Should Never Buy Online

      Online shopping offers plenty of amazing-looking deals. But you know how it goes: If something seems too good to be true ...

    • Will pulling out a gray hair cause 10 more to grow in its place?
      people Will pulling out a gray hair cause 10 more to grow in its place?

      You might be tempted to pluck your gray hairs, but you shouldn't -- and not for the reason that you might think.

    • Why are horseshoes considered to be lucky?
      people Why are horseshoes considered to be lucky?

      Four-leaf clovers, rabbit's feet, heads-up pennies — all lucky charms for many people. Another common lucky charm? The horseshoe.

    • How the March on Washington Worked
      history How the March on Washington Worked

      The 1963 March on Washington for Jobs and Freedom ensured the passage of the Civil Rights Act and made Martin Luther King Jr. an American icon. But its success was not assured at the beginning.

    • BrainStuff: Why does gasoline smell so good?
      shows BrainStuff: Why does gasoline smell so good?

      Some people sense a sweet, euphoric odor when pumping gas into their car. Why is that? And is it hazardous?

    • 10 Scientific Words You're Probably Using Wrong
      science 10 Scientific Words You're Probably Using Wrong

      If you have a theory that potato chips are making you fat (with the proof being your expanding waistline), you've just used two scientific terms in a very unscientific way.

    • Are any superstitions universal across cultures?
      people Are any superstitions universal across cultures?

      Knocking on wood, crossing your fingers, fear of black cats ... are some superstitions common around the world, or are they specific to certain cultures?

    • Is it rude to point out someone else's typos?
      people Is it rude to point out someone else's typos?

      We get it: You're a grammar nerd, and correcting typos is your lifeblood. You might want to slow down with the virtual red pen, though — pointing out typos is often unnecessary.

    • How Dogs Work
      animals How Dogs Work

      The relationship between people and dogs goes back at least 15,000 years. Have you ever wondered exactly how dogs evolved and why they come in such a wide variety of shapes and sizes? Find out about our canine companions.

    • Will sleeping with a fan on kill you?
      people Will sleeping with a fan on kill you?

      Every culture has its own unique superstitions, most of which probably seem a little odd to outsiders. In Korea, for example, there’s the fear of death by fan.

    • How are video games regulated in the U.S.?
      electronics How are video games regulated in the U.S.?

      Video games sometimes get a bad rap for corrupting the world's youth. But while some of these concerns might be overblown, keeping "Mortal Kombat" away from 5-year-olds is probably a good idea. So how do we regulate responsibly?

    • How do space telescopes die?
      science How do space telescopes die?

      Even NASA's best-designed space telescopes can break, become obsolete or simply complete their missions. But what happens then? Are they shipped off to some great cosmic graveyard, or are they given a renewed lease on life and scientific glory?

    • Stuff You Should Know: Did Christopher Columbus worry Earth was flat?
      shows Stuff You Should Know: Did Christopher Columbus worry Earth was flat?

      Whoever told you that old chestnut was a dummy and proves you should question everything. This is also the last Don’t Be Dumb.

    • Where did the legend of Bloody Mary come from?
      people Where did the legend of Bloody Mary come from?

      The "Bloody Mary" ritual, long popular on the sleepover circuit, supposedly causes a ghastly apparition to materialize in a darkened room. Where did this legend come from? Was there a real Bloody Mary?

    • 10 Superstitions About Death
      health 10 Superstitions About Death

      Death is a fact of life. Since the beginning of time humanity has come up with numerous superstitions to come to terms with the dearly departed.

    • Is it rude to screen your calls?
      people Is it rude to screen your calls?

      Your phone is ringing, but you just don't want to talk to the caller. So you let the call go to voicemail and now you feel guilty. Is it ever OK to screen your calls?

    • Is gasoline more dense in the morning?
      auto Is gasoline more dense in the morning?

      Everybody says it so it must be true, right? "Buy your gas in the morning when it's cooler, and it will last longer." Well, the science behind this theory is sound, but in reality, it won't save you much.

    • Can ghost peppers kill you?
      health Can ghost peppers kill you?

      The world's hottest pepper was once used to make grenades. Is something like that even safe to eat?

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