湯瑪斯愛迪生創造了許許多多的發明物，但留聲機卻是他的最愛。當愛迪生正在努力設法改善電報機及電話機時，卻發現可以利用錫箔包裹的滾筒來記錄聲音。1877年時，他創造了一個內附兩隻唱針的機器：一隻用來記錄，而另一隻用來播放。當愛迪生對著送話口說話時，唱針會將他的聲音震動刻劃在滾筒上，使其形成波紋。猜猜看，愛迪生對留聲機說的第一句話是什麼？


Thomas Edison created many inventions, but his favorite was the phonograph. While working on improvements to the telegraph and the telephone, Edison figured out a way to record sound on tinfoil-coated cylinders. In 1877, he created a machine with two needles: one for recording and one for playback. When Edison spoke into the mouthpiece, the sound vibrations of his voice would be indented onto the cylinder by the recording needle. What do you think were the first words that Edison spoke into the phonograph?

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