There is a little pincushion distortion, which Vortex builds into its optics to help with globe effect distortion. This is used in most binoculars and monoculars, but it was apparent only under ...

Miles above the Earth, two bands of fast-moving air – the polar jet stream and the stratospheric polar vortex – sometimes tango together to influence weather in the northern hemisphere.

The system, known as a polar vortex, is forecast to bring subzero temperatures to the Midwest, Mid-Atlantic and deep into the South. And it looks as if we may get more arctic blasts in the coming ...

So I was thrilled to see the initial designs of Vortex’s new Viper red dot. This enclosed emitter is built from a single piece of 6061 aluminum and mounts directly to the receiver of most shotguns — ...

You can create a release to package software, along with release notes and links to binary files, for other people to use. Learn more about releases in our docs.

You can create a release to package software, along with release notes and links to binary files, for other people to use. Learn more about releases in our docs.

The snow-covered Peace Monument outside the Capitol on Feb. 12. (Jacquelyn Martin/AP) ...

It's a term you hear every couple of winters, when we get stuck in the coldest of cold patterns – polar vortex. But what exactly is it and how does it impact our weather? The polar vortex is ...

And if the polar vortex is to blame. First, a quick refresher on the polar vortex. The polar vortex is a region of very strong winds that form a circle around the North Pole. The vortex is located ...

Feb. 12, 2025 — Scientists have demonstrated that negative refraction can be achieved using atomic arrays -- without the need for artificially manufactured metamaterials. Scientists have long ...

The original all-electronic, open-access optics journal, Optics Express (OpEx) is known for its rapid time to publication and high Impact Factor. OpEx publishes peer-reviewed articles that emphasize ...

FILE - A person walks along the shore of ice covered Lake Michigan, Feb. 13, 2025, in Chicago. (AP Photo/Kiichiro Sato) ...