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lensing

lensing

2 7.6
A lens or gravity bends light and changes how objects look
  • noun
  • /ˈlɛn.sɪŋ/
  • Specialized
translation icon : lente
  • In particular, gravitational lensing features are different for alternative gravity theories with extra dimensions and general relativity.
  • gravitational lensing
  • lensing effect

And we can also detect it by its gravitational lensing properties of background galaxies.

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Examples

  • Now, the existence of dark matter is largely inferred from the gravitational effect on visible matter and the gravitational lensing of background radiation.

  • Because of gravitational lensing, the CLASH research team was able to observe three magnified images of MACS0647-JD with the Hubble telescope.

    Blog text (5)
  • Gravitational lensing provides such a tool.

    Academic text (1995)
  • Researchers have used the lensing to make a detailed map of the distribution of matter in Abell.

    Academic text (1995)
  • And we can also detect it by its gravitational lensing properties of background galaxies.

  • The gravitational lensing features for alternative gravity theories with extra dimensions are different from general relativity.

    Academic text (2018)
  • So this image behind me shows how the dark matter of a massive cluster of galaxies is lensing distant galaxies in the background.

  • Here's an example: a filament of dark matter stretching between galactic clusters detected by its gravitational lensing.

    Blog text (22)
  • One method relies on gravitational lensing, an effect predicted by Albert Einstein's general theory of relativity and first demonstrated by Arthur Eddington during a solar eclipse in 1919.

    Academic text (1996)
  • Weak gravitational lensing accounts for most of the lensing effects in the universe.

Synonyms

deflection of light
vslensing
  • Specialized
6.4

Light rays bend when they pass through different materials or around objects

is bending produced by optical elements or gravity that alters how things look

Surface Forms

lensing singular
lensings plural

Morphology

lensing = lens (semi-transparent) = lens + ing

The word is a straightforward nominalization from 'lens', but the technical gravitational-lensing sense is specialized enough that it is not fully transparent for an average B1 learner.

Etymology

The word lensing comes from lens, the piece of glass that bends light, and lens comes from a Latin word meaning 'lentil' because early lenses were small and round like the seed. So lensing is the process of bending or changing how light looks, whether by a glass lens or by the gravity of a large object.