- The electric toothbrush was invented in 1939.
- A pigeon's feathers are heavier than its bones.
- There are around 30 milligrams of caffeine in the average chocolate bar while a cup of coffee has around 100 to 150.
- Coca-Cola originally contained cocaine.
- Spiny lobsters migrate in groups of 50 or more, forming a conga line on the ocean floor.
- It took Leonardo Da Vinci 10 years to paint Mona Lisa.
- The longest alphabet has 74 letters.
- The first US coast to coast aeroplane flight occurred in 1911 and took 49 days.
- Niagara Falls could fill 4,000 bathtubs every second.
- The first train reached a top speed of only 8 kmh (5 mph).
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