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Blue, orange or yellow: what determines the color of the flame
You can endlessly look at three things: how water flows, how other people work, and how fire burns, changing its…
Why do galaxies have a spiral shape?
Despite their nature and age, all galaxies in the visible part of space are twisted into a spiral - and…
Why is it very cold in deserts at night?
After sunset, temperatures in the Sahara can drop from an average of 38°C during the day to an average of…
Why do “magic circles” appear on Earth? Scientists don’t know the answer
“Magic circles” are a fantastic phenomenon found in many desert regions of our planet. For some reason, grass grows in…