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    29. 2017
    January

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Neat News 2017-48 (added 2017-02-17)

Photons can Collide

photon.png
Public Domain by Incnis Mrsi

Light has properties of waves and also of particles. Some 80 years ago it was predicted that the particles can actually collide. Until recently this has not been observed. Now in experiments researchers seem to have observed 13 photon-photon collisions.

News seen at: Spiegel Online - Wissenschaft (in German)

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