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Not So Great Inventions #5

Science brain teasers require understanding of the physical or biological world and the laws that govern it.


Puzzle ID:#16105
Fun:*** (2.79)
Difficulty:** (1.92)
Submitted By:od-1Aca****
Corrected By:boodler




Yet another inventor trying to find a better way to remove ice and snow from his car windows has come up with an almost great invention. This product uses a spray can containing a pure alcohol (in this case methyl hydrate) to melt away ice and snow from the windows. Alcohol (or methyl hydrate) is often used as gas line anti-freeze and in a mixed form in windshield washer fluid to keep it from freezing. It works really well to melt ice and this product is still sold even though it almost never works as the manufacturers claim. But why does it fail to produce a clear ice-less window?

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