Conventional curved lenses, which direct light by refraction in glass or plastic, are often bulky and heavy, offering only limited control of light waves. Metasurfaces, in contrast, are flat and ...

This advertisement has not loaded yet, but your article continues below. Make Alissa Timoshkina's spring picnic recipes for fennel and potato salad, rye, beet and beef meatballs and piroshki buns ...

In 1974, Aimpoint introduced the first red dot sight and their popularity has skyrocketed ... without an additional optical magnifier. The Vortex Spitfire HD Gen II is best configured for use ...

These Vortex Hunter Rings position the center of the riflescope tube at a height of 0.87 inches (22.0 mm) from the base. Mounting to a Picatinny or Weaver type rail, the standard, 2-screw Hunter ...

Andrew McKean When it comes to getting lead on steel and paper quickly, no sight performed better in our test of the best red dot sights than the Leupold DeltaPoint Pro 6 MOA. Its large, bright dot ...

My 20 gauge wasn’t fully settled in my shoulder, but I had a fine view of his head thanks to a Vortex red-dot sight on that Mossberg. That off-shoulder shot wouldn’t have been nearly as possible with ...

you can get up to 47 percent off top brands like Vortex, Leupold, and Sig Sauer. Rifle scopes, spotting scopes, rangefinders, binoculars, even red dot sights—all of the above are deeply ...

Poly(vinyl alcohol) (PVA) was sourced from Sigma-Aldrich (no. P8136). The green dye Bodipy-1 and Nile Red were acquired from Sigma-Aldrich (nos. 793728 and 72485, respectively). Surface-modified ...

As 2024 ends, On The Red Dot revisits 10 moments that moved Singaporeans, from Max Maeder's Olympic bronze in kitefoiling to Pope Francis' visit and a thrilling World Cup match against China. You ...

But the end is in sight. "Now I know it's possible," he said. "I'm convinced that soon we will have a very nice tool available to the community." That means we may soon be able to use this virtual ...