評論
打印
There is nothing complicated about it.
這一點也不復雜
Move a magnet near a wire...and you will cause electricity to flow through the wire.
拿一塊磁鐵在一段鐵線附近移動 鐵線上就會產生電流
Put electricity through a wire,and it would act like a magnet and deflect the compass.
而在鐵線上通電后 鐵線就具備磁鐵的作用 能讓指北針偏移
So what connected them?
那兩者間究竟有何關聯
Maxwell's big idea was that magnetism and electricity
麥克斯韋的高見是 磁力和電力
are actually two facets of the same thing:
其實是一體兩面
a wave of energy that was part electrical part magnetical.
是一種能量波 且同時具有電與磁的性質
He called them: electromagnetic waves.But then came a surprise.
他將這種波命名為電磁波 但后來又有意外發現
The mathematics told him this electromagnetic waves
數學推導結果顯示這種電磁波
travel at extraordinary speed: 186,000 miles per second.
速度極其之快 每秒達30萬公里
The exact same speed that had already been determined to be the speed of light.
這和已確定的光速完全相同
This led to astounding conclusion:Light is an electromagnetic wave,too.
這導出一個驚人的結論 光也是電磁波
