人们常说“眼见为实”。这话在通常情况下是正确的,但是在一些特殊情况下,就未必适用了。心理学家证明:正常人有各种各样的视错觉。比如,同样大小的两个圆,被围在六个更小的圆中间比被围在六个更大的圆中间显得大;又如,两条平行线,放在有辐射线条的背景中就变得弯曲了。魔术师 People often say “seeing is believing.” This is usually correct, but in some special cases, it may not be applicable. Psychologists prove that: normal people have a variety of optical illusions. For example, two circles of the same size, enclosed in six smaller circles, appear to be larger than they are enclosed in six larger circles; again, for example, two parallel lines in the background of a radiation line It has become curved. magician