Author: Arnica Khaton
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How Pregnancy Tests Led to the Decimation of Frog Populations
With readily available pregnancy tests stocked across drugstore shelves, it is hard to imagine a time when determining pregnancy was not so simple a task. Instead of the easy-to-use plastic cartridge we commonly imagine, the earliest reliable pregnancy tests utilised Xenopus laevis, also known as the African clawed frog (Nuwer, 2013). This method for identifying…
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The One-Man Environmental Disaster
The story of Thomas Midgley Jr. is a cautionary tale of the power of scientific research, and its consequent potential dangers. As an engineer with over 100 patents by the end of his career, Midgley (Figure 1) could always be expected to be working on the next big breakthrough (National Inventors Hall of Fame, 2003).…