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Opinion, arguments & analyses from guest experts and from the editors of Scientific American

Organic milk delivers more consistent nutrition across seasons

Like produce, milk quality can vary with the season and year. Dairy cows' daily diet, much of which comes from plant forage, determines the nutritional makeup of their milk, so when their food lags in quality, so, too, does their output...

January 17, 2011 — Katherine Harmon

Not yet for sale: "Smart" water bottle and no-dials radio cube [Video]

Cambridge Consultants, a technology product design and development firm, had several prototype gadgets on display at the 2011 Consumer Electronics Show (CES), including a real-time hydration alert developed for a new "smart" water bottle and a wi-fi Internet radio that works without knobs, buttons or dials...

January 14, 2011 — Larry Greenemeier

Transgenic chickens get bird flu without passing it on

Researchers have engineered a new type of chicken that might help prevent the spread of bird flu—a worrisome virus that has already caused extensive economic harm on farms, especially in Asia, and that could lead to a pandemic in humans...

January 13, 2011 — Katherine Harmon

Space tourism to International Space Station set to resume in 2013

Space Adventures, the private firm that sent seven paying clients on trips to the International Space Station (ISS) between 2001 and 2009, will have three more seats available for tourists to fly to the outpost starting in 2013, the company announced in a January 12 press release...

January 12, 2011 — John Matson

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