Related topics: physical review letters

Earth's lower mantle can be oxidized in the presence of water

If we took a journey from Earth's surface to the center, the midway point is roughly at 1900 km depth in the lower mantle. The lower mantle ranges from 660 to 2900 km depth and occupies 55% of our planet by volume. The chemical ...

Coming to a sky near you: Comet SWAN at its best

Comet C/2020 F8 (SWAN), perhaps the brightest comet we will see this year, is at its best from now until mid-June. It should be visible in from the UK in the northwestern sky after sunset, close to the horizon.

Fossil fuel-free jet propulsion with air plasmas

Humans depend on fossil fuels as their primary energy source, especially in transportation. However, fossil fuels are both unsustainable and unsafe, serving as the largest source of greenhouse gas emissions and leading to ...

Collars risk causing neck injuries in dogs, study shows

A study led by a canine scientist at Nottingham Trent University looked at the potential impact of pulling on the lead and the related pressure on the neck, using a variety of of collar-types and styles.

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Pressure

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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