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    How old are the atoms of the Earth?

    Quora: How old are the Atoms on Earth? Ahh, time. Humans have grappled with time for… a long time. This is actually a really hard question—for very philosophical reasons. When you think about it, for most of human history, the very concept of “age” really described large-scale, molecular processes. Seasons change. Plants grow. Cells replicate. […] More

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    Why Do Coins Have Ridges On Their Edges?

    Did you notice the ridges on the edges of some coins? Ever wonder why government treasuries spends so much money on creating those tiny little ridges? Wouldn’t it be easier and cheaper to build a smooth one? Of course, the Treasury might save some money to make the edges smooth. However, the U.S. Treasury has […] More

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    [DECODED] Those Mysterious Laundry Symbols

    Ever wondered what those symbols on your garments mean? They’re actually standardized symbols for garment care. Here are some of the basics: There are many variations, but once you learn the basics, it’s fairly self-explanatory. It helps to keep in mind the different things that you can do to your laundry: wash, bleach, dry, iron, or […] More