Uncategorized
- Health & Medicine
Stem cells not required
Insulin-producing cells in the pancreas proliferate by cell division, unlike other body tissues, which regenerate from adult stem cells.
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I would debate the “1,000 watts or more” value attributed to typical adults during strenuous exercise as mentioned in this story. Hiking up steep slopes, I rarely exceed 250 W myself, and typical hikers are going much slower. The 1,000-watt figure can only apply to elite athletes during brief periods of peak exertion. David B. […]
- Tech
Powering the Revolution
Sensors and other electronic devices that can scavenge energy could open a new realm for technology.
