Modern Engineering Marvels on MSN
A minor geomagnetic storm can paint big skies far south
For a few hours on a clear winter night, a “minor” disturbance high above the Earth can make the northern horizon appear ...
News-Medical.Net on MSN
Pulse oximeters miss hypoxemia more often in people with darker skin, study finds
This large prospective UK study compared five low-cost fingertip pulse oximeters with arterial blood gas measurements and ...
We independently review everything we recommend. When you buy through our links, we may earn a commission. Learn more› By Annemarie Conte Annemarie Conte writes the Ask Wirecutter column, ...
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