据专家测试,眼睛距离书本25cm时视野最佳,书本越近越模糊,待书本贴在鼻尖上时什么也看不见了。虽然有这样一句谚语:如果你看得不够清楚,一定是你离得还不够近。可事实上,有时离得足够近了,哪怕借助各种帮助,你也不一定看得清楚。正如德国物理学家海森堡的名言:我们生存的世界,有时真像玩骰子一样具有不确定性。 According to expert tests, when the eye is at 25cm from the book, the field of vision is the best, and the blurring the book is, the more it can not be seen until the book is attached to the tip of the nose. Although there is such a proverb: If you can not see clearly enough, you must not be close enough. In fact, sometimes enough to get close, even with all kinds of help, you may not necessarily see clearly. As the German physicist Heisenberg famously said: The world we live in is sometimes just as ugly as playing dice.