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Before telephones and the internet, long-distance communication relied on Morse code, a system of dots and dashes representing letters and numbers. Developed in 1837 by Samuel Morse and Alfred Vail,...
The Science of Echoes—How Sound Bounces Back
Have you ever shouted into a canyon and heard your own voice return? That’s an echo, caused by sound waves bouncing off a surface and returning to the listener. Sound travels in waves, and when...
The Science of Boomerangs—Why They Come Back
Boomerangs are one of the most fascinating throwing tools, famous for their ability to return to the thrower when thrown correctly. But how does this seemingly simple object defy expectations and...