News tagged with refraction

Scientists reverse Doppler Effect

(PhysOrg.com) -- Researchers from Swinburne University and the University of Shanghai for Science and Technology have for the first time ever demonstrated a reversal of the optical ‘Doppler Effect’ ...

dateMar 07, 2011 in Optics & Photonics
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Imitation black hole seen on earth

Astrophysics deals mostly with things that are so distant -- thousands or billions of light years away -- that we can't ever hope to see them up close. But clever scientists can do the next best thing to making ...

dateSep 30, 2010 in General Physics
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The Medical Minute: Pediatric eye safety

Yes, the dog days of summer are upon us; for most families that signals the longstanding tradition of back to school preparation. It’s time to begin the search for the perfect backpack and notebook, shop for new clothing ...

dateJul 29, 2010 in Health
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