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The History of Paper Clips—A Simple but Brilliant Design
Paper clips are one of the most recognizable office supplies, yet their design has remained largely unchanged since the 19th century. But who invented them? While several designs existed, the most...
The Science of Sound Waves—How We Hear the World
Sound is all around us, but have you ever wondered how it actually travels? Unlike light, which can move through empty space, sound needs a medium—air, water, or solid objects—to be heard. When an...
The History of Traffic Lights—Keeping the World Moving
Traffic lights are a crucial part of modern transportation, but their origins go back further than you might expect. The very first traffic light was installed in 1868 in London, outside the British...