I'm Just Wondering: Those Weird Little Facts

I was wondering, are there more stars in the sky or sand on the ground for those weird trivia? Can people really go back to the past? Is there any higher mountain on earth than Mount Everest? Is the air you breathe in the morning fresh? Why do women cry more than men? Is singing out of tune a "disease"? … In life, there are always many strange problems that seem commonplace but make us extremely puzzled and do not know the reasons. But in fact, behind these questions, there is interesting and interesting scientific basis. This book collects a large amount of "absurd", ridiculous, unpopular and interesting knowledge, including the universe, geography, human body, animals, technology, history, psychology and many other aspects.