Expanding Birnbaum’s Observations

I was just making sure that my escarole ("scarola in Italian") had enough water, early yesterday morning. But an unexpected surprise led me to learn more than a few things. For starters, escarole is more closely related to chicory than to lettuce. Unlike the latter, escarole has toothed leaves and lacks the milky white sap... Continue Reading →

In Chemistry, Volumes Are Not Always Additive

In chemistry, volumes are not always additive. Can you think of an example for each of the following four situations?(1) 19 cm3 of a compound is added to 89 cm3 of an identical compound, and the level of the liquid only rises to about 96 cm3.(2) An appreciable amount of solid is dissolved in 100.0 ml of... Continue Reading →

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