When we write the old-fashioned way, with ink on paper, we rarely think of the pen鈥檚 ingredients. For hundreds of years聽gall ink聽was used to produce documents such as Shakespeare鈥檚 will and the U.S...
The green in American paper bills is chromium oxide, a refined version of chromite, a naturally occurring ore in the Earth鈥檚 crust. This ore is also the source of chromium metal which is produced...
The culprit in this heinous crime was methylene chloride, also known as dichloromethane, a liquid that easily evaporates and can be readily inhaled. Even minimal inhalation can cause light...
I attended a seminar many years ago given by a Ph.D. student who had spent years working on a particular type of childhood cancer. During the question-and-answer period, I raised my hand. I wanted...
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