SAT写作素材之赫兹Heinrich Rudolf Hertz

SAT近年来被越来越多的人所了解、关注。主要是由于近年来留学低龄化的日益突出，有越来越多的同学想尽早尽快奔赴大洋彼岸留学。虽然SAT整体上来看可能难度上不如中国高考，但是如果备考SAT的同学掉以轻心，即使学习不错、英文很好，也依然很有可能造成成绩悲剧。官方真题Official为备考SAT的同学们找到了英文SAT作文素材，希望对同学们有所帮助。

Heinrich Rudolf Hertz

As is commonly believed, Heinrich Rudolf Hertz is most renowned for being the first one to conclusively prove the existence of electromagnetic waves. He clarified and expanded the electromagnetic theory of light that had been put forth by James Clerk Maxwell. As a physicist, Hertz maintained a spirit of exploration and insistence, and his story inspires people who intend to pursue contributions in the sphere of science.

At that time, people firmly believed Maxwell’s theory of electromagnetism, that is, electromagnetic waves existed and moved at the speed of light, and light itself was just a wave. Though it was popular, the theory was still only a prediction. Encouraged by his mentor, Hertz was to prove it. He made many experiments and finally managed to make a precise wave-detecting apparatus, though he failed multiple times before success. In the experiment, he discovered the electromagnetic wave. In more advanced experiments later on, he measured the velocity of electromagnetic radiation and found it to be the same as the light’s velocity. He also showed that the nature of radio waves’ reflection and refraction was the same as those of light and established beyond any doubt that light is a form of electromagnetic radiation obeying the Maxwell equations.

With his insistence, Hertz was definitely a legend in science. His experiments soon triggered the invention of the wireless telegraph, radio and television.

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