有人曾做过这样的实验:两根室外燃烧的木材,当它们相距很远时,时隔不久就熄灭了;当相距太近合并为一体,时隔不久也熄灭了;只有两者相距有度,间隙不远也不近时,两根木柴才相互辉映,直至全部化为灰烬。这样一种自然现象,科学家称之为“温热有隙效应”。 Someone has done experiments like this: two outdoor burning woods that disappear shortly after they are far apart; when they are too close together, they are extinguished after a while; and only when the two are apart , Not far from the gap is not near, the two firewood embraced each other, until all ashes. Such a natural phenomenon, scientists call it “warm gap effect.”