评论
打印
There is nothing complicated about it.
这一点也不复杂
Move a magnet near a wire...and you will cause electricity to flow through the wire.
拿一块磁铁在一段铁线附近移动 铁线上就会产生电流
Put electricity through a wire,and it would act like a magnet and deflect the compass.
而在铁线上通电后 铁线就具备磁铁的作用 能让指北针偏移
So what connected them?
那两者间究竟有何关联
Maxwell's big idea was that magnetism and electricity
麦克斯韦的高见是 磁力和电力
are actually two facets of the same thing:
其实是一体两面
a wave of energy that was part electrical part magnetical.
是一种能量波 且同时具有电与磁的性质
He called them: electromagnetic waves.But then came a surprise.
他将这种波命名为电磁波 但后来又有意外发现
The mathematics told him this electromagnetic waves
数学推导结果显示这种电磁波
travel at extraordinary speed: 186,000 miles per second.
速度极其之快 每秒达30万公里
The exact same speed that had already been determined to be the speed of light.
这和已确定的光速完全相同
This led to astounding conclusion:Light is an electromagnetic wave,too.
这导出一个惊人的结论 光也是电磁波
