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Abstract: The vortex polarization direction indicator (Vortex-PDI), comprising a half-wave vortex retarder and an analyzer, enables single-shot characterization of linearly polarized light. This study ...

Forecasters say the first snow storm of the season to take aim at major Northeast cities will dump several inches of snow over the weekend, followed by a bitter Arctic blast courtesy of the polar ...

Add Yahoo as a preferred source to see more of our stories on Google. Forecasters say the first snow storm of the season to take aim at major Northeast cities will dump several inches of snow over the ...

Bundle up. This weekend will get seriously cold. The planet's most extreme cold air will be barreling into the central and eastern United States this coming weekend "like a wrecking ball," said ...

Another round of bone-chilling air from the polar vortex could invade the central and northeastern US this weekend and potentially produce the first significant snowstorm of the season for the ...

Multiple states registered subzero temps on Friday, Dec. 5. The polar vortex has broken, and severe temperatures are dominating even in southern sates like Texas, which saw record breaking lows in the ...

Frigid temperatures are expected to impact much of the central and eastern United States in the coming weeks. The first of three polar vortex systems is expected this month, according to AccuWeather.

Some light snow is possible across much of New Jersey on Friday night after an Arctic blast of much frigid air could challenge record low temperatures. Accumulations are expected to remain light, with ...

Northern parts of the United States are seeing colder temperatures following Thanksgiving after record-breaking heat hit many parts of the South last week. But the country could be in for shockingly ...

A project at Finland's Tampere University has secured €4.4 million in funding to further its research into optical vortices. The High-Power Optical Vortices (HiPOVor) project will train 15 doctoral ...

A new Doctoral Network coordinated by Tampere University has secured €4.4 million in funding from the European Union’s Marie Skłodowska-Curie Actions (MSCA) programme. The High-Power Optical Vortices ...