十万个为什么·科学阅读30篇（5）
17 / 30
正在确认阅读权限…
Why Do We See Mirages on Hot Roads?
为什么炎热路面上会出现海市蜃楼？
-
Hot roads heat the air just above the surface.炎热的路面加热其上方的空气。
-
Warm air is less dense and bends light differently.暖空气密度较低，使光线发生不同折射。
-
Light from the sky bends downward near the hot road.来自天空的光线在热路面上方向下弯曲。
-
Our eyes think that light comes from the ground instead.我们的眼睛误以为光线来自地面。
-
This creates a shiny, watery patch that looks like water.这形成了一片闪亮、水汪汪的区域，看似有水。
-
Mirages happen only when air layers have big temperature gaps.只有当空气层间存在较大温差时才会出现海市蜃楼。
-
They vanish as you get closer because angles change.当你靠近时，它便消失，因为入射角度发生了变化。
-
Mirages are real light tricks, not illusions or magic.海市蜃楼是真实的光学现象，并非幻觉或魔法。