【名师带你背单词】New Scientist精选《宇宙中扭曲的光束成就了爱因斯坦完美的宇宙理论》Part1/3,曼拓教育微信公众号文章

Science 是一个另同学们很头痛的话题，不仅因为缺乏science 方面的词汇，而且常常也是因为缺乏这方面的知识储备，导致做题时（特别是听力）理解吃力。针对这个问题，曼拓的资深名师将在每周为大家挑选不同领域的文章，帮助大家增加涉猎。

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New Scientist 精选：《The warps in space that make Einstein’s perfect cosmic accident》Part 1/3

PTE关键词：Galaxy，Einstein，astronomy

来源：https://www.newscientist.com/article/2106168-the-warps-in-space-that-make-einsteins-perfect-cosmic-accident/

核心词汇

掌握了这些单词后，再读一下这看似高深的科学类文章，是不是感觉轻松多了？

曼拓君

Picture a glimmering arc of light, the artefact of a lens made of warped space-time instead of glass.Einstein thought there was “no hope” of observing thesebizarre cosmic illusions, predicted by his theory of general relativity – but we’ve been collecting so-called “Einstein rings” since 1987.

An Einstein ring is not a place to visit but a trick of perspective. Two distant galaxies have to line up just so, or we won’t see it. At its most perfect, it’s a big, unbroken circle: beautiful and scientifically valuable in equal measure.

A complete Einstein ring is one of the universe’s most accurate bathroom scales – the circle it draws around a galaxy lets us add up the mass of everything inside. This means they can help solve mysteries as diverse as dark matter and the ancient universe.

We know of only a few dozen arcs that approach a full circle, though. So it seems fair to ask: of the Einstein rings we’ve found hidden in the sky so far, is there one that rules them all?

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