6don MSN
A technology developed by the Brazilian company brain4care has been shown to be able to measure absolute values of ...
5d
Live Science on MSNHow do fitness trackers measure your heart rate?PPG sensors measure these changes in blood volume and pulse pressure (the difference between systolic and diastolic pressure) ...
Scientists have unlocked a way to read magnetic orientation at record-breaking speeds using terahertz radiation. Modern hard ...
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