How solar panels are cleaned. A job for true perfectionists!

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Trees consume 50% of the oxygen they themselves produce

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The tiny pocket on the jeans was designed to hold a pocket watch

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Geron's Fountain - practically a perpetual motion machine

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Lemon contains more sugar than strawberries

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Listening to 5 to 10 songs a day improves your memory

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Originally, the tie was invented to distinguish the rich from the poor

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Everest is the highest point on Earth (8,848m), but it does not compare to the deepest point on Earth, the Mariana Trench in the Pacific Ocean, which is about 10,994m deep

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In some US states and Canadian provinces, children can legally drive from the age of 14

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The elephant brain reacts to people the same way the human brain reacts to puppies - they think we're cute

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Guys only buy 30% of books, girls buy the rest

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China has created televisions that are very difficult for humans to damage

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The total weight of bacteria living in the human body is approximately 2 kg

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Saffron is one of the most expensive spices in the world

To harvest 1kg of the spice, you need to collect the stigmas of 200,000 flowers

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10-20 cherries have the same effect as 1 aspirin tablet

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Hitting your "balls" is 9000(del) units of pain. It's like giving birth to 160 babies or breaking 3,200 bones at once

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Mosquitoes are the world's deadliest animal: because of the diseases they carry they kill more people than any other creature

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In China, used condoms are converted into rubber bands for hair

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The touch of a loved one has a pain-relieving effect

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Grapefruits are 92% water

That makes it one of the most water-efficient fruits on the planet.
When you consider that up to 20% of a person's daily water needs come from food, including just one grapefruit in your diet can significantly reduce dehydration

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Those who sleep less than 6 hours a day are more likely to have mental health problems

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