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Photon waves. Image: CC BY-SA 3.0 via Wikimedia Commons.
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Shining Light on the Nobel Prizes
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The dual nature of light
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What
is light? For centuries scientists struggled to prove whether visible
light behaves like a particle or a wave, until they concluded that it
behaves like both. Light, as well as other forms of electromagnetic
radiation, can move like waves and carry photons with different amounts
of energy. Through the years, the Nobel Committees have celebrated many
different discoveries and functions that helped to illuminate the nature
of light.
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Reflections on light
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Although famed for his theories of relativity, it was his law about light that gave Albert Einstein his Nobel Prize in Physics.
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Albert Einstein.
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Life from light
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Find
out how a protein structure helped explain arguably the most important
chemical reaction on earth - photosynthesis - a discovery awarded the
1988 Nobel Prize in Chemistry.
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Light and sight
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Our
vision works by the light around us being captured by a large number of
light-sensitive cells located in the retinas at the back of our eyes.
The 1967 Medicine Laureates Ragnar Granit, Keffer Hartline and George
Wald explained how our eyes detect light and colour.
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Light in life
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Lighting
plays a significant role in our quality of life. The development of
light-emitting diodes (LEDs) has made more efficient light sources
possible. Creating white light that can be used for lighting requires a
combination of red, green, and blue light. Blue LEDs proved to be much
more difficult to create than red and green diodes. During the 1980s and
1990s Isamu Akasaki, Hiroshi Amano, and Shuji Nakamura successfully
used the difficult-to-handle semiconductor gallium nitride to create
efficient blue LEDs.
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The inner light
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Literature
Laureate Harry Martinson depicted the Swedish natural environment in
his poetry, but was also a world traveler and a stargazer.
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Photo: Devilal, CC BY-SA 3.0 via Wikimedia Commons.
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Monthly Quiz
A global prize
The
Nobel Prize in Literature has been awarded to 114 authors from more
than 40 countries. In which country were most Literature Laureates
born? Make a guess and click to submit your answer.
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