14 A Volt and a Jolt

CHAPTER FOURTEEN A Volt and a Jolt Volt (noun). A unit used when measuring the amount of electricity in a battery. Something small like a remote control needs a few volts of electricity, but a remote-controlled car needs a LOT more. IT WAS THREE DAYS before STEM Night. On Tuesday afternoon, we were in the science lab, getting time for our projects with Ms. Daly. Like always, we had to work at a table with our assigned groups. "Okay, everyone, my Rube Goldberg machine is going to turn on that calculator." I pointed to the calculator that Ms. Daly had given me. "I'm ready to watch this," said Memito. "Me too," said Jeremy. "Me three," said Phoenix. The first thing I did was to power my very low- volt, handheld fan with a battery made from six lemons. This time I had remembered to roll the fresh lemons to soften up the insides before making my batteries. And to test them using the voltmeter.

第十四章一个伏特和一个颠簸伏特（名词）。 用来测量电池电量的单位。 像遥控器这样的小东西需要几伏特的电，但遥控汽车需要更多的电。 离“干之夜”还有三天。 星期二下午，我们在科学实验室，为我们的项目争取时间。 戴利。像往常一样，我们必须和分配给我们的小组坐在一张桌子上工作。 “好了，各位，我的Rube Goldberg机器要启动计算器了。” 我指着计算器说。 戴利给我的。“我已经准备好看了，”梅托说。 “我也是。”杰里米说。“我三个。”菲尼克斯说。 我做的第一件事是用六个柠檬做的电池给我的低压手持式风扇供电。 这一次，我记得在做电池之前，把新鲜的柠檬卷起来，让里面的柠檬变软。 然后用电压表测试它们。

Now came the moment to see if my concept for the machine would work. I used blocks to prop up an upside-down lunch tray to the exact height of my little fan. Then I placed a small round pebble at the beginning of a Hot Wheels track on top of the tray. Then at the end of the track, I stacked six dominoes in a row. There was just enough space to carefully balance Birdie's strawberry between the last domino and the very edge of the tray. Below the tray, I set a glass full of water. "Okay, ready?" I cried. "One, two, three, go!" After I turned on the fan, it powered the pebble, which rolled down the track to knock into the dominoes, which pushed the strawberry off the lunch tray into the cup of water with a satisfying plop. The water overflowed, wetting the piece of tissue paper underneath it. "Cool!" cried Phoenix. "Yeah," admitted Jeremy. "That's like something you'd see on YouTube." "But you didn't get the calculator to turn on." Memito shook his head. "Oh, man, that's not good." "It's fine!" I said. "I haven't finished building my machine." I pointed to my bag. "I've got more tissue paper in here and a little plastic arm. All I have to do is strap down the arm using tightly pulled tissue paper. When the cup overflows, the

现在是检验我的机器概念是否可行的时候了。 我用积木支撑起一个倒过来的午餐托盘，和我的小风扇一样高。 然后我把一个小圆鹅卵石放在风火轮轨道的顶部。 然后在跑道的尽头，我把六块多米诺骨牌排成一排。 在最后一块多米诺骨牌和托盘边缘之间，刚好有足够的空间来小心地平衡伯迪的草莓。 在托盘下面，我放了一个装满水的杯子。 “好吧,准备好了吗?”我哭了。“一，二，三，开始！”在我打开风扇后，它给鹅卵石提供了动力，鹅卵石沿着轨道滚动，撞到多米诺骨牌上，然后把草莓从午餐托盘上推到杯子里，发出令人满意的扑通一声。 水溢出来，弄湿了下面的一张纸巾。 “酷！”凤凰叫道。“是的，”杰里米承认。 “就像你在YouTube上看到的那样。” “但是你没有打开计算器。” 梅托摇了摇头。“哦，伙计，这可不妙。” “很好!”我说。“我还没造完我的机器。” 我指着我的包。“我这里有更多的卫生纸和一个小塑料手臂。 我所要做的就是用拉紧的纸巾把胳膊绑起来。 当杯子溢出来的时候

tissue paper will get all soggy, releasing the arm, which will spring up to hit the ON button on the calculator. Plus, I'm also going to power up the calculator with these." I pulled out two more lemons. "Tada!" "Mmmm, those smell good," sniffed Phoenix. "Maybe I could make fruit leather out of them," said Memito. "No," I said. "Like I told you. I need them to make another battery." "It's time for a milk break, everyone." Jeremy held up a half quart each of chocolate and strawberry milk. On his tray were half quarts of fat- free and low-fat milk. "Oh, strawberry is my favorite. I'll take that," said Memito, grabbing the carton of strawberry milk. Jeremy yanked it away from Memito. "Dude, that's part of my experiment. To see what happens when you pour Red Bull in the milk." He popped open a can of Red Bull. "The acid in this stuff will curdle milk. At least that's what I'm hoping. And I want to see which kind of milk curdles the most." Phoenix made a face. "Think what it will do to your stomach." Jeremy poured different kinds of milk in four empty flasks. Then he topped them off with Red

纸巾会湿透，松开手臂，它会弹起，按下计算器上的开键。 另外，我还要用这些来增强计算器的功能" 我又拿出两个柠檬。 “恩!”“嗯，闻起来真香。”菲尼克斯闻了闻。 “也许我可以用它们做水果皮，”梅托说。 “不，”我说。“就像我告诉你的。 我需要它们来做另一块电池。” “大家喝奶休息时间到了。” 杰里米各拿了半夸脱巧克力牛奶和草莓牛奶。 在他的托盘上有半夸脱的脱脂和低脂牛奶。 “哦，草莓是我的最爱。 “我要那个，”梅托说着，抓起一盒草莓牛奶。 杰里米把它从记忆托手里抢了过来。 “伙计，这是我实验的一部分。 看看把红牛倒进牛奶里会发生什么。” 他打开了一罐红牛。 “这东西里的酸会使牛奶凝固。 至少我是这么希望的。 我想看看哪种牛奶最容易凝结。” 凤凰做了个鬼脸。“想想它会对你的胃产生什么影响。” 杰里米把不同种类的牛奶倒进四个空瓶子里。 然后他又加了红色

Bull. The strawberry milk immediately separated. On the top it was foaming. With the chocolate milk you couldn't see the separation as much but you could tell something was going on. After a few more minutes, the low-fat milk and fat-free milk got clumpy. Meanwhile, Memito was taking photos. Click. Click. Click. "Okay, you're going to want to get this!" Jeremy dumped the low-fat milk and the fat-free milk into the sink. There were clumps of curdled milk that looked like cottage cheese. "Say cheese!" cried Jeremy. Memito held his nose. "Wow, that reeks." "Keep taking photos," said Jeremy. The strawberry milk and the chocolate milk barely came out of the flask. "It's not budging." Finally, giant clumps plopped out.

公牛。草莓奶立刻分离了。 上面起了泡沫。 用巧克力牛奶时，你看不到那么多的分离，但你可以看出发生了什么。 几分钟后，低脂牛奶和脱脂牛奶都结块了。 与此同时，Memito正在拍照。 点击。点击。点击。“好吧，你会想要这个的！”杰里米把低脂牛奶和脱脂牛奶倒进了水槽。 有一团一团的凝乳，看起来像白干酪。 “说奶酪！”杰里米叫道。 梅托捏着鼻子。“哇，臭气熏天。” “继续拍照，”杰里米说。 草莓牛奶和巧克力牛奶几乎没有从瓶子里流出来。 “它没有变化。”最后，大团大团扑通一声掉了出来。

Memito put down the camera. "Take another photo!" urged Jeremy. "You can't miss this." "Okay, I won't breathe," joked Memito, who took a few more shots. "That was pretty stinky," I admitted. "But I've got to go. Not because of the stink—well, a little bit because of it." "You don't know what you're missing," said Jeremy. "I'm going to get my poster board," I said. "To add to the observations section." I hurried to the back of the lab. But when I went to look at my poster board, I couldn't believe what was scribbled right under my drawing of my Rube Goldberg machine.

梅托放下相机。 “再照一张！”杰里米催促道。 “你不会错过的。”“好吧，我就不呼吸了，”梅托开玩笑说，他又拍了几张照片。 “那很臭，”我承认。 “但我得走了。不是因为臭——嗯，有点因为它。” “你不知道你错过了什么，”杰里米说。 “我去拿我的海报板，”我说。 “加入观察部分。” 我急忙跑到实验室的后面。 但当我去看我的布告栏时，我简直不敢相信在我的Rube Goldberg机器的画下面潦草地写着什么。