Just when you think you have this world figured out, all these questions pop up in your mind: why do car rides and rain make you sleepy? Why do airplanes have a hole in the tail? And which water extinguishes fire better, cold or hot?  Do you know what makes us perceive the clouds as white? Or why dogs kick their legs when you rub their belly? Or why most big space objects like planets and stars are round? Well, those answers and plenty more coming your way!

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