Mysteries

  • How Hot Is the Sun?

    How Hot Is the Sun?

    January 15, 2014 | Article

    The sun, a massive nuclear-powered star at the center of the solar system, generates the heat and light that sustain life on Earth. But how hot is the sun?
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  • When Do Babies Start Teething?

    When Do Babies Start Teething?

    January 15, 2014 | Article

    When babies start teething, the lower central incisors — the two bottom front teeth — are the first to come in, followed by the upper central incisors. From there, the other incisors, the first set of molars and the canines all grow in.
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  • Ogopogo: Canada's Loch Ness Monster

    Ogopogo: Canada's Loch Ness Monster

    January 07, 2014 | Reference

    Ogopogo — a creature said to lurk in Canada's Lake Okanagan — is the most likely and best documented of all lake monsters.
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  • Why Do People Cut Themselves?

    Why Do People Cut Themselves?

    December 20, 2013 | Article

    Cutting is one form of non-suicidal self-injury (NSSI) — also known as self-injurious behavior or non-suicidal self-directed violence — which is the deliberate, self-inflicted destruction of body tissue without suicidal intent.
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  • What Is Yeast?

    What Is Yeast?

    December 20, 2013 | Article

    Yeasts are microscopic, single-celled organisms belonging to the fungi kingdom — the taxonomic group that also includes mushrooms and mold.
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  • What Is Bonded Leather?

    What Is Bonded Leather?

    December 19, 2013 | Article

    If you've purchased a relatively cheap leather sofa, leather-bound books or an inexpensive belt, you might own a bonded-leather item. But what is bonded leather?
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  • What Is Jell-O?

    What Is Jell-O?

    December 19, 2013 | Article

    Sold since 1897, Jell-O has occupied a familiar place on American dinner tables for decades. But what is Jell-O made of?
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  • Why Do Antihistamines Make You Drowsy?

    Why Do Antihistamines Make You Drowsy?

    December 16, 2013 | Article

    Drowsiness is a side effect of some antihistamines such as diphenhydramine (Benadryl) and doxylamine succinate (found in Nyquil). And because of their powerful sedating qualities, antihistamines are also the active ingredient in sleep aids.
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  • What Is Kosher Salt?

    What Is Kosher Salt?

    December 16, 2013 | Article

    Named for its use in the process of koshering (or removing blood from meat) in accordance with Jewish dietary laws, kosher salt has a large grain size and lower sodium content per tablespoon than most common table salts.
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  • Does Coca-Cola Contain Cocaine?

    Does Coca-Cola Contain Cocaine?

    December 16, 2013 | Article

    While the Coca-Cola Company officially denies the presence of cocaine in any of its products — past or present — historical evidence suggests that the original Coca-Cola did, in fact, contain cocaine.
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