Right now, Black Diamond’s powerful Onsight 375 Headlamp is on sale at REI for just ... ambient or proximity light mode, then switch to spot light mode for searching for anchors in night rappels.

Therefore, one should know how to spot a fake diamond ... under the source of the black light. If you’re holding a genuine diamond, then you will witness an intense blue color on the surface ...

Whether used indoors or outdoors, this reliable headlamp is bright enough to light ... New low price. Choose black or blue. From REI, opt for store pickup to avoid $30 oversize shipping fee.

Because black holes swallow all light, astronomers can't spot them directly like they do the many glittery cosmic objects in the sky. But there are a few keys that reveal a black hole's presence.

The Blue Diamond Classic Diamond-Infused Ceramic is part of the Cookware test program at Consumer Reports. In our lab tests, Cookware Sets (Nonstick) models like the Classic Diamond-Infused ...

It was these drawbacks that led Stuart Semple to create his own incredibly black paint. Over the years, he’s refined the formula and improved its performance, steadily building a greater product ...

Should you be concerned if your dog has a black spot on its tongue ... And unlike some genetic variants in dogs, such as blue eyes, there’s no risk to a dog’s future litters if two dogs ...

Stachybotrys chartarum is sometimes referred to as "toxic black mold." But all kinds of mold can cause symptoms if you're sensitive to, or allergic to, mold. More research is needed to understand ...

Think you’re observant enough to spot the difference between two very similar pictures? Let’s find out! Grab a timer (or move at a leisurely pace) and see how many subtle differences you can ...

Both black and white rhinoceroses are actually gray. They are different not in color but in lip shape. The black rhino has a pointed upper lip, while its white relative has a squared lip.