Paul McCartney dreamed the melody of "Yesterday" one night and immediately wrote the music the next morning. He then looked around for a month to make sure that he didn't subconsciously plagiarize it from somebody else.
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MDIF, a New York based non-profit organisation, is planning to beam free Wi-Fi to the entire world from space.
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Brass doorknobs automatically disinfect themselves in about 8 hours.
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An African Baobab tree in South Africa, known as Big Baobab, has a circumference of 154 feet and even has a bar inside the trunk that can fit 60 people.
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Elephants are among the most emotional creatures in the world - they have even been known to rescue other animals, such as trapped dogs.
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