Polar

In functional and convex analysis, and related disciplines of mathematics, the polar set A ∘ {\displaystyle A^{\circ }} is a special convex set associated to any subset A {\displaystyle A} of a vector space X , {\displaystyle X,} lying in the dual space X ′ .

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China starts building icebreaker that could send experts to polar seabed by 2025

Evidence of a Polar Cyclone on Uranus From VLA Observations

We Asked a NASA Scientist: Is Polar Ice Melting?

NASA’s Twisted Discovery: First Observation of a Polar Cyclone on Uranus

There's a Polar Cyclone on Uranus' North Pole

VLA Spots Polar Cyclone on Uranus

ShadowCam Captures Spectacular Photos of Moon’s South Polar Region

Earth’s polar ice sheets lost 7,560 billion tonnes of ice between 1992 and 2020, contributing to coastal flooding and a 21 mm rise in sea level

Polar ice sheet melting records have toppled during the past decade

Decade of the Worst: Polar Ice Sheet Melting Shatters Records

New Polar Bear-Inspired Fabric Is 30% Lighter Than Cotton and Far Warmer

New textile unravels warmth-trapping secrets of polar bear fur

Breathtaking JWST image of Uranus shows rings, clouds and a polar cap

Polar ice sheets may retreat much faster than previously thought

U.S. birds' Eastern, Western behavior patterns are polar opposites

‘Unfair’ medical screening plagues polar research

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Scientists marvel at whirlpool of plasma forming polar vortex on sun

Polar Vortex Drives a Cold Snap in Asia

‘Polar Vortex’ Got You Baffled? Try This Extreme-Weather Guide

Lars Chittka »