Researchers found that cold is detected differently in the skin than in internal organs. This split system helps explain why cold air, cold drinks, and cold surfaces create very different sensations.

Imaging technology has transformed how we observe the universe—from mapping distant galaxies with radio telescope arrays to ...

If you read about Hall effect sensors — the usual way to detect and measure magnetic fields these days — it sounds ...

A pulse oximeter measures blood oxygen levels at home and in healthcare settings. Abnormally low readings on a pulse oximeter might require medical care, especially if they are below 92%. Skin color ...