Light is composed of electric and magnetic fields that oscillate perpendicular to each other. When these oscillations are restricted, say, along a plane, it results in polarized light. Polarized light is of great importance ...
Optics & Photonics
Mar 27, 2023
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413
The world is getting warmer, winters included. The United States, however, has experienced severe winter storms in recent years, and experts are taking a closer look at the link between these extreme cold events and climate ...
Environment
Dec 29, 2022
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72
Many people are familiar with the hole in the ozone layer over Antarctica, but what is less well known is that occasionally, the protective ozone in the stratosphere over the Arctic is destroyed as well, thinning the ozone ...
Earth Sciences
Jul 7, 2022
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177
"Some say the world will end in fire," wrote Robert Frost a century ago. The poet described one popular take on the world's end before shifting to its apocalyptic opposite, writing, "some say in ice."
Environment
Dec 16, 2021
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472
The highest temperature ever verifiably recorded on Earth—54.4 degrees Celsius (130 degrees Fahrenheit) in Death Valley, California, on July 9, 2021—comes just months after record-low temperatures were recorded across ...
Environment
Aug 9, 2021
1
38
A dust storm that engulfed Mars in 2018 destroyed a vortex of cold air around the planet's south pole and brought an early spring to the hemisphere. By contrast, the storm caused only minor distortions to the polar vortex ...
Planetary Sciences
Jul 23, 2021
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571
The polar vortex is a large area of upper-atmosphere cyclonic air circulation surrounding both poles. It is bounded by the polar jet stream and its associated cold air is usually confined to the polar regions. Within the ...
Earth Sciences
May 12, 2021
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3
During the summer of 2020, especially June and July, periods of extreme heavy rainfall occurred in China's Yangtze River Valley (YRV). These rain events caused the severest floods for the region since the summer of 1998. ...
Earth Sciences
Apr 28, 2021
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7
It's as if the world has been turned upside-down, or at least its weather. You can blame the increasingly familiar polar vortex, which has brought a taste of the Arctic to places where winter often requires no more than a ...
Earth Sciences
Feb 17, 2021
3
10
As this winter's polar vortex currently sends extreme icy blasts of Arctic weather to some parts of the northern hemisphere such as the northeast of the US, scientists are using wind information from ESA's Aeolus satellite ...
Earth Sciences
Feb 4, 2021
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6
