Science & Industry
Why Do We Dial 911 for Emergencies?
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Science & IndustryFact3Refrigerators used to be toxic.
Iceless refrigerators have come a long way since the 1920s, when they first became affordable for home kitchens. Since then, there have been many technological advances in refrigeration — including…
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Science & IndustryFact2The oldest recording of a president is the voice of Benjamin Harrison.
Some presidential voices are instantly recognizable, such as John F. Kennedy’s distinctive New England accent or Ronald Reagan’s folksy tone. But we’ll never definitively know what presidents such as George…
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Science & IndustryFact2Boats used to be powered by horses.
Horses tend to be known for their land-based achievements, but that doesn’t mean equines aren’t sometimes aquatic. In fact, for more than a century, beginning in the 1810s, horse-powered ferries…
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Science & IndustryFact1A volcanic eruption indirectly led to the invention of the bicycle.
The bicycle may seem like a symbol of leisure or health today, but its roots lie in disaster. In 1815, Mount Tambora in Indonesia erupted with extraordinary force, blasting ash,…






