如果你曾经用一个放大镜来聚集阳光去烧一只不幸的蚂蚁，你就知道太阳能光伏发电的要领了。
If you've ever used a magnifying glass to focus the sun's light and burn an unfortunate ant, you've got the gist of it.
Abell 383星云有着许多星系聚集着很大质量，因此他们的万有引力像个巨大的放大镜，放大偏折星云后面物体发出的光。
The many galaxies in the Abell 383 cluster are collectively so massive that their gravity acts like a huge magnifying glass, bending and amplifying light from objects behind the cluster.
光线（特别是白天的自然光）的强度可以降低眼睛对放大倍数的要求，有时只要有足够的光线，就没有必要再使用放大镜。
The presence of a lot of light (mainly white daylight) can considerably reduce the magnification required. Sometimes, good lighting alone can make reading possible again.
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