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2015考研英语复习正是强化复习阶段，考研英语阅读在考研英语中占了40分，所以考研英语阅读是英语科目中重要的一项。新东方名师范猛老师曾建议过考研生需要坚持每天泛读10-15分钟的英文原刊。强烈推荐了杂志《经济学人》.杂志中的文章也是考研英语的主要材料来源.希望考研考生认真阅读，快速提高考研英语阅读水平。
Neutrino communications
中微子通信
ET, phone home
外星人，致电家中
The world's first neutrino-messaging service
世界上首次中微子通信服务
PARTICLE physics is all very well for addressingtrivial matters like "why are we here?" (seearticle). But some people question its practicalusefulness. To answer such naysayers a group of physicists at Fermilab have just submitted apaper to Modern Physics Letters A in which they describe how they have built themselves aneutrino-powered telephone.
粒子物理学总是能很好地解决我们生活中遇到的像"为什么我们在这里?"这类的琐事。但是一些人会质疑它的实际可行性。为了消除类似的质疑，费米实验室的一群物理学家刚向物理学界权威杂志Modern PhysicsLetters A提交了一篇论文，论文中描述着他们怎样为自己成功定制了利用中微子载波的无线电通信电话。
Naturally, their neutrinophone is digital. A pulse of neutrinos (small, elusive subatomicparticles with no electric charge) corresponds to the digit "1" while no pulse corresponds to"0". The neutrinos themselves are created by smashing bunches of protons into a targetmade of graphite. They are detected roughly 1km away by researchers who, in their dayjobs, work on a neutrino collaboration called MINERvA. By modulating the pulses of protonsthe group was able to send a message in binary that, when translated, read "neutrino".Whether this will go down in history alongside Alexander Graham Bell's first message, "MrWatson, come here, I want to see you," remains to be seen.
显然，他们的中微子电话通信是数字化的。一个中微子(一种不带电荷形态诡异的亚原子粒子)脉冲对应着逻辑电平"1"，没有脉冲时就对应着逻辑电平"0"。中微子产生于一些质子束轰击一个石墨目标后产生脉冲介子，介子随后衰变而成。整天工作于一个「主注入器之中微子V-A交互作用实验(MINERvA)的研究员们在大概在一公里远处能检测到中微子。通过对质子束脉冲的调制编码后，以二进制码的形式进行中微子传输。是否这将延续亚历山大?格拉汉姆?贝尔(Alexander Graham Bell)的历史，以"Watson先生，请过来，我想见到你"进行首次中微子通信，我们拭目以待。
The point, though, apart from sheer wackiness, is that neutrinos are not easily interceptedby collisions with other sorts of matter. If humanity wanted to broadcast its existence tointelligent life forms that might be out in the galaxy listening, a modulated beam ofneutrinos would be a good way of doing so. Conversely, some people argue that listening forET at radio frequencies is the wrong approach. The right one, they think, would be to build aneutrino-receiver. And that would mean plenty of work for neutrino physicists. Perhaps, then,from its makers' point of view, the neutrinophone is not such a nutty idea, after all.
然而，重要的不仅是其古怪性而且中微子在传输中当受到其他物质的撞击时不容易被破坏。如果人类想让远在银河系的地方听到充满智慧生命存在性的广播，那么经过调制的中微子光束则是使他实现的一种很好的方式。相反，一些人认为利用无线电广播频率收听外星人是一种错误的方式。他们认为正确的方式应该是搭建一个中微子载波的接收器。这就意味着中微子的物理学家将需要做大量的工作。那么，也许中微子电话的制造商会认为，毕竟中微子电话并非是一个疯狂的创意。
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发表于 2017-8-6 15:59:28