陷害(2/2)

”我作证“

“你会作证吗?告诉教授,你今天早上第二个来到实验室,看到门已经开了,理查德在实验室里,然后我们检查器材时,发现了认为损坏的痕迹。“

教授转向彼得。

”我刚到实验室的时候,门已经开了,但是实验员或者助教并没有来。理查德在实验室里,说‘随便看看’,后来我们检查器材的时候,发现了这些问题,线圈松动不像出厂问题,管脚的油脂更明显时人为涂抹。“

“也许,把所有元件都检查一遍,尤其是管脚。”

克劳斯教授来到他的实验台前,看向工具盒。教授拿起瓶子,打开盖子闻了闻。

克劳斯教授的目光落在我的脸上。“诺伊曼小姐,你为什么会想到检查这些元件?”

”彼得,你在说什么?我今天来得早,只想提前准备一下,顺便看看,怎么可能动她的实验器材?“理查德的声调提高,想要一次掩盖自己的紧张,但他的手在颤抖。

“管脚根部有油渍,气味有些像凡士林或是润滑脂,但是不应该有这些东西。你觉得这时有人故意的?”

这些损坏很隐秘,并且时经过精心设计。用油脂涂抹在真空管管脚,通电后可能受热分解,留下痕迹,真正危险的时油脂可能造成管脚间漏电,在高压下打火爆炸。线头的松动如果振动导致断开,电路瞬间开路,产生极高的感应电压,击穿其他元件,甚至伤及操作者。

克劳斯教授没等他回答,拿起真空管和线圈摆在他面前“诺伊曼小姐的工作台上的元件,被人用导电油脂涂抹管脚,线圈线头被人松动,这些操作,和你今日异常早到,有实验室的钥匙,构成完整的证据。如果今天发生通电事故,造成人员受伤,你要负什么责任?助教,你去叫系主任过来,有人故意损坏实验器材。”

“导电油渍。”他看向瓶子。“瓶口内壁的油脂与真空管管脚的油脂一致。而且你的工具盒中还有这个实验室的钥匙。第一个问题,你作为学生,为什么有实验室的钥匙?第二个问题,你在里面做了什么?”

克劳斯教授的目光转向理查德。

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理查德被要求离开实验室,他的目光看向我,脸上充满愤恨。实验继续,克劳斯教授给我们换了一组新的元件。实验过程很顺利。

证据已经确凿。

“线头有点松,可能是出场问题?”

”彼得,如果通电时发生爆炸,或者线圈瞬间开路产生高压,我们这次实验会不及格,并且可能造成受伤,失去进入实验室的资格。“

彼得犹豫了。理查德的父亲是冲锋队小头目,大多学生不想惹麻烦。

这一切在通电后瞬间发生,一旦引起事故,看起来像操作失误,没人会想到蓄意破坏。

我继续检查其他的元件,绕线线圈线头处有细微的松动,如果通电后振动,很可能会断开。

彼得问我:“你怎么知道他会损坏你的实验器材?”

“你把线圈检查一遍,看看有没有松动。”

我回到座位,彼得问我有没有什么要帮忙。

“那又怎样,我路过,看一眼,不行吗?”

p; 我开始检查元件盒中的器材。我拿起真空管对着灯光仔细检查,玻璃外壳没有列文,管脚没有弯曲,但是管脚根部又一圈细微的暗色痕迹。

“习惯,每次实验前,我都会检查器材。”

这是油脂类物质受热后留下的痕迹,但这是新的实验器材,上周实验课结尾的时候统一发的,助教说这是下周实验课的材料,目前还没用过。

教授观察了真空管。”这是人为的。你什么时候发现的?“

”不用,你是一个焊接技术不错的目击者。“

我找到克劳斯教授。”教授,有件事请您处理。我的实验器材被人动了手脚,真空管管脚被涂抹油脂,线圈被人为松动,如果通电,可能造成事故。“

”刚到的时候。但当时我不确定,我和彼得检查后,发现了这些问题,确认了痕迹。“

下课前,教授说,:今天的实验报告,除了要数据和实验结果,还要加上一段,关于实验安全的重要性,以及识别器材异常。“

“你站在她试验台前,我亲眼看到。”

”当一个人出现在他不该出现的地方,做着他没理由做的事,那么它的存在本身,就是一个需要检验的假设。“

“彼得,我去借一下万用表,我的表不太灵敏了。”我找了个借口我在实验室中走动,路过理查德的实验台,他的工具盒敞开,其中有一个暗色的瓶子,瓶口沾有少量油渍。实验盒中还有一把钥匙,可以匹配实验室的锁。

彼得沉默了,而后苦笑”我以后和你一组,是不是也要小心一点?“

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