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What 'An Inconvenient Truth' Got Right (And Wrong) About Climate Change

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Now that its sequel is out, where did Al Gore's landmark environmental documentary hit the mark? What did it get wrong?

What Are 'Low-yield' Nuclear Weapons?

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The Trump administration wants to develop a new generation of low-yield nuclear weapons that could be used without launching an all-out nuclear war.

What Are Confidence Intervals in Statistics?

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Science requires that we make guesses, which is why we have confidence intervals.

What Are Dark Matter and Dark Energy?

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Dark matter and dark energy are part of the fabric of the universe. How much do scientists know about dark matter and dark energy?

What Are Days and Nights Like on the Moon?

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What do day and night look like on Earth's moon? HowStuffWorks explains how can you tell the two apart. And yes, they do look different.

What Are Decibels, and How Are They Measured?

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The decibel scale measures sound based on human hearing, which makes it one of the most unusual scientific measurements. How are decibel calculated and what do they tell us about sound?

What Are Frankincense and Myrrh?

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The three wise men in the story of Christmas carried gold, frankincense and myrrh. What are frankincense and myrrh? Can you still get them these days?

What Are Ghost Guns and Why Are They So Dangerous?

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President Joe Biden announced new regulations surrounding ghost guns. What are these untraceable guns that allow a purchaser to assemble them from parts?

What Are Imaginary Numbers?

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An imaginary number is a value that's the square root of a negative number. It can't exist on a one-dimensional number line. We'll explain.

What Are Ley Lines?

science.howstuffworks.com/science-vs-myth/unexplained-phenomena/ley-lines.htm

Is the world really connected by an intricate, invisible web of knowledge-expanding energy waves? Sure, it's called the Internet -- and you're channeling it right now! Oh, you were asking about the ley lines? We've got an answer for that too.

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