The smell of rain is caused by gases released by bacteria living in the soil, reacting to the rainwater that seeps into the ground.

This smell has its own name - petrichor.

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Rio de Janeiro was once capital of Portugal, making it the only European capital outside of Europe.

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The feeling of constant busyness makes people happier, helps them feel useful to others, and maintain a positive attitude.

Remember this the next time you feel like complaining to someone about a ton of ongoing tasks.

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Hematidrosis is an extremely rare illness that causes a patient to sweat blood. It occurs when the capillary blood capillaries that supply the sweat glands break. Symptoms include blood oozing from the umbilicus, nails, forehead, and other skin areas.

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The fastest pit stop in the world: just 1.82 seconds.

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The term “Sweet Death” refers to dying of hypothermia, because you feel an innocent desire to lie down and sleep. A certain feeling of wellness overcomes you and with a sardonic ‘Mona Lisa’ smile on your face, you die.

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All Pakistani passports bear the innoscription “This passport is valid for all countries of the World except Israel.”

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There is an Octopus species (Graneledone boreopacifica) that cares for her eggs for 53 months, apparently not eating during this time and then dies. This brooding period is the longest known for any animal.

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Did you know most of the oxygen we breathe comes from the ocean?

Tiny marine plants called phytoplankton are responsible for producing about 50% of the world's oxygen, even more than rainforests.

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The human brain generates about 12-25 watts of electricity, enough to power a low-wattage LED light bulb. This electrical activity is produced by the firing of neurons, which communicate with each other through electrical impulses. Despite its relatively low power output compared to other organs, the brain’s electrical activity is essential for controlling all bodily functions, thoughts, and behaviors.

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There was a man named Joseph Bolitho Johns who escaped Australian prison so many times, they built a special cell just for him. It was so strong that they promised to forgive his crimes if he could escape again. He escaped that as well.

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