Chapter 9

9 FRANK CLEARS OFF HIS LAB WORKBENCH AND SETS UP HIS EQUIPMENT. "So here is the heart of the idea—electricity and magnetism are two different forms of the same thing." "Electron energy," says Klink, holding up both his lightbulb and magnet attachments. "Exactly," says Frank. "Electricity can make magnetism. And magnetism can make electricity."

弗兰克清理了他的实验室工作台，并设置了他的设备。 “所以这就是这个想法的核心——电和磁是同一事物的两种不同形式。” “电子能量，”Klink说，举起他的灯泡和磁铁附件。 “没错，”弗兰克说。“电可以产生磁。 磁可以产生电。”

"Like how chocolate milk is both chocolate and milk," adds Watson. "No," says Frank Einstein. "Not at all like that. But interesting, Watson. Observe this experiment." Frank picks up a big iron nail. He sticks it into a pile of paper clips, then pulls it out. "Just a plain old nail, right?" "Right," says Watson. Frank winds a copper wire around the nail. "But if we wrap the iron nail in copper wire..." Frank tapes one end of the wire to the top of a battery, the other end of the wire to the bottom. "...and run electrons from the battery through the wire..." Frank sticks the nail into the pile of paper clips again. "...we make the nail into a magnet!"

“就像巧克力牛奶既是巧克力又是牛奶，”沃森补充道。 “不，”弗兰克·爱因斯坦说。 “根本不是那样的。但是很有趣，华生。 观察这个实验。”弗兰克拿起一个大铁钉。 他把它插进一堆回形针里，然后把它抽出来。 “只是一个普通的旧钉子，对吗？”“对，”沃森说。 弗兰克把一根铜线绕在钉子上。 “但是如果我们把铁钉用铜线包起来……” 弗兰克把电线的一端粘在电池的顶部，另一端粘在电池的底部。 “…让电池中的电子穿过电线……” 弗兰克又把钉子插进了那堆回形针里。 “…我们把钉子做成磁铁！”

Frank lifts up the nail, this time dragging a bunch of paper clips with it. "Magic!" says Watson. "No—magnet," says Klink. "The electric current flowing through the wire produces a magnetic field around it. More wire makes a stronger field. So the electrified coiled wire makes a field just like a magnet."

弗兰克抬起钉子，这次他拖着一堆回形针。 “魔法！”华生说。“没有磁铁，”Klink说。 流过导线的电流在导线周围产生磁场。 电线越多，电场越强。 所以通电的线圈就像磁铁一样形成了一个场。”

Watson nods. "Magnetism from electricity." "And now watch this!" says Frank. Frank coils a longer copper wire in many big loops. He tapes one end of the wire to the side of the metal base of a small flashlight bulb. He tapes the other end of the wire to the tip of the bulb base.

沃森点点头。“由电产生的磁力。” “现在看这个！”弗兰克说。 弗兰克把一根较长的铜线绕成许多大圈。 他把电线的一端粘在一个小手电筒灯泡的金属底座上。 他把电线的另一端粘在灯泡底座的顶端。

"This bulb needs electricity to light up," says Frank. "Right," says Watson. Frank picks up a bar magnet. "If you move a magnet in and out of the coils of the copper wire, it moves the electrons in the wire..." Frank moves the magnet quickly in and out of the wire coils. The bulb lights. "...and it makes electricity!" "That is tooooo weird," marvels Watson. "Magnetism can make electricity. And electricity can make magnetism. But I guess that's right. 'Cause both are moving electrons around." Frank jumps up from the lab bench. "And since Earth acts as a giant magnet, imagine how much electricity Earth could make. And imagine if we could tap into it anywhere. And shoot it out—like a static-electricity finger!"

“这个灯泡需要电才能亮起来，”弗兰克说。 “对，”沃森说。弗兰克拿起一个条形磁铁。 “如果你在铜线的线圈内外移动一块磁铁，它就会移动铜线中的电子……” 弗兰克迅速地把磁铁移进移出线圈。 灯泡亮了。“…它还能发电！”“这太奇怪了，”沃森惊叹道。 “磁可以产生电。 电可以产生磁。 但我想这是对的。因为两者都在移动电子。” 弗兰克从实验台上跳了起来。 由于地球就像一个巨大的磁铁，想象一下地球能产生多少电。 想象一下，如果我们可以在任何地方接入它。 然后把它射出去——就像静电手指一样！”