Related topics: physical review letters

Study reveals how mucus tames microbes

More than 200 square meters of our bodies—including the digestive tract, lungs, and urinary tract—are lined with mucus. In recent years, scientists have found some evidence that mucus is not just a physical barrier that ...

Silica aerogel could make Mars habitable

People have long dreamed of re-shaping the Martian climate to make it livable for humans. Carl Sagan was the first outside of the realm of science fiction to propose terraforming. In a 1971 paper, Sagan suggested that vaporizing ...

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Pressure (symbol: p or P) is the force per unit area applied in a direction perpendicular to the surface of an object. Gauge pressure is the pressure relative to the local atmospheric or ambient pressure.

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