The Complete Book of 100,000 Reasons Why
Favlit. ten thousand reasons why
为什么光会发光？
1、光是一种电磁波，由振荡的电场和磁场组成，这些振荡能够传递能量，从而发光。
2、光源可以是自然产生的，如太阳，通过核聚变反应产生巨大的能量，这些能量以光的形式辐射出来。
3、光源也可以是人工产生的，如灯泡，通过电流加热钨丝，使其达到高温并发光。
4、光的发光原理与物质的原子结构有关，当原子中的电子从高能级跃迁到低能级时，会释放出光子，即光。
5、光的传播不需要介质，可以在真空中传播，这也是为什么我们能接收到来自遥远星星的光。
总之，光会发光是因为它是一种能量形式，可以通过各种方式产生，如核反应、电流或原子能级跃迁，并能够以电磁波的形式传播。
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