Science & Industry
Science & IndustryFact2
Tennis balls changed from white to yellow to be easier to see on TV.
By the early 1970s, many television networks had made the transition from broadcasting in black and white to color, and an increasing number of households were upgrading their TV sets…
Science & IndustryArticle53
We Tried Writing With a Quill, and Here’s What We Learned
The use of quill pens dates back to the sixth century CE, when the feathers of large birds — primarily geese, turkeys, swans, and even crows — replaced the reed…
Science & IndustryArticle31
The Most Extreme Blizzards in History
When blizzards come at full force, they’re certainly nothing to sneeze at. In the most extreme cases, visibility is reduced to just a few feet, wind blows faster than traffic…
Science & IndustryFact15
Ancient Greeks invented an alarm clock that used flowing water.
Thousands of years before mechanical timepieces existed, as far back as the 16th century BCE, water clocks were among the most accurate ways to tell time. These early clocks controlled…