Source: http://feedproxy.google.com/~r/mnt/healthnews/~3/jcAbnkhrdPw/249358.php
Sunday 26 August 2012
Keeping Kids Alert In The Classroom: New Device Monitors Air For Carbon Dioxide Levels That May Make Them Drowsy
With nearly 55 million students, teachers and school staff about to return to elementary and secondary school classrooms, scientists described a new hand-held sensor - practical enough for wide use - that could keep classroom air fresher and kids more alert for learning. They reported on the device at the 244th National Meeting & Exposition of the American Chemical Society, the world's largest scientific society. The sensor detects the amount of carbon dioxide (CO2) in classroom air...
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