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- Better chow yields more milk: A more nutritious form of corn for dairy cows boosts farm profits, teen investigator finds
- Fuzzy future: Kids may suffer impaired vision from spending too little time outdoors, studies suggest
- Building with moon rocks: Working on the moon with lunar soil and grit could prove easier, more efficient and less costly than using earthly materials
Making light lase
View larger version | A modern version of the ruby laser, first built by Theodore Maiman, relies on two phenomena: stimulated emission of photons and their amplification. Other lasers depend on the same principles.
Credit: Nicolle Rager Fuller
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Coverage of the 2013 American Association for the Advancement of Science meeting
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