

Science Jul 12

Researchers at Georgia Tech and Emory University have built energy-recycling stairs that store a user’s energy during descent and return energy to the user during ascent.
By Roni Dengler
Health Jan 23

Susan Dentzer reports on the "green houses" project, which seeks to reinvent traditional nursing home care and create close-knit communities of patients and caregivers. Some observers, however, question the homes' financial feasibility.
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