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These 52 Items Aren't Expensive, But They Sure Fooled Me
Jen Get a set of 20 from Amazon for $12.98 (available in blue, green, and as a set of10 ... The on/off switch is on the cord, so I plugged mine into a plug with a battery-operated remote so I wouldn’t ...
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This Strange Crystal Has Two Melting Points And We Finally Know Why
In 1896, German chemist Emil Fischer noted something very strange about a molecule named acetaldehyde phenylhydrazone.