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A masterclass in "how stuff works" that lets you take apart a mechanical watch without losing the tiny springs on your carpet.
★More than half of all people alive today have never made a phone call.★Saturn would float if you could find an ocean big enough.★The Statue of Liberty was originally intended to be a lighthouse.★Dolphins sleep with one eye open.★Octopuses have three hearts and blue blood.★The shortest commercial flight in the world lasts just 57 seconds.★A group of owls is called a parliament.★The dot over the letter 'i' is called a tittle.★Rats laugh when tickled.★Ketchup was once sold as medicine in the 1830s.★The first computer mouse was made of wood.★Your tongue print is as unique as your fingerprint.★Hot water freezes faster than cold water. This is called the Mpemba effect.★You can hear a blue whale's heartbeat from more than two miles away.★The smell of rain has a name: petrichor.★A cloud can weigh more than a million pounds.★A rhinoceros' horn is made of keratin, the same stuff as hair.★A jiffy is an actual unit of time: 1/100th of a second.★Bubble wrap was originally invented as wallpaper.★The longest recorded flight of a chicken lasted 13 seconds.
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