500 Scientific Facts That Will Surprise You

Scientists often seem to us almost insane—not without reason! They know things that make your hair stand on end! Did you know that on Earth there are a hundred million times more insects than people, and that researchers discover 10,000 new insect species every year? Or that the Solar System orbits the center of our galaxy at 273 kilometers per second? Or that in a day, a human’s blood travels more than 19 kilometers through the vessels? And did you know that Neanderthals had a significantly larger brain volume than you and I? Or that there are about 100 million microbes in your mouth at all times—feeding on leftover food and dead cells of the oral cavity. Want to learn about nature, the human being, the nature of animal life, and also about our planet and the cosmos—facts that will shock you? Discover scientific facts that will be fun to share with friends and tell children.