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gravitational lens |
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gravitational lens [‚grav·ə′tā·shən·əl ′lenz] (astronomy) A massive galaxy or other massive object whose gravitational field focuses light from a distant quasar near or along its line of sight, giving a double or multiple image of the quasar. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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[They're thinking that] you really shouldn't be able to bend light or fly. A new modular vision inspection system for clear film uses a special lighting technique in which lenses bend light so that it illuminates very small surface scratches on the film regardless of their spatial orientation. Just like an out-of-focus camera lens, a person's vision becomes blurry when the eye's lens does not properly bend light into a clear image on the retina. |
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