If you've been to an indoor pool, you probably know the distinct scent of what many of us think is chlorine, but that pungent odor comes from chloramines, chemical compounds formed when chlorine mixes ...

Indoor pools can have a distinct odor caused by chlorine binding to body waste. A Minnesota student invented a device to measure chloramine levels. KUOW is Seattle’s NPR news station. We are an ...

Nobody, not even the Food and Drug Administration, knows exactly how many additives are in the U.S. food supply. One of the most commonly cited figures—roughly 10,000—comes from an estimate published ...

A dumpy level is a surveying instrument used to measure and establish level points on construction sites and land projects. It helps ensure surfaces, foundations, and structures are properly aligned ...

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Physicists have just dropped a new precise measurement for gravity. The newly published value for the strength of gravity, known as “G” or “Big G”, is significantly smaller than some previous ...

Experience the intense pressure of a one-hour animation challenge as a high-speed drawing session brings an iconic anime action sequence to life. From the initial rapid sketching of key frames to the ...