A quick and simple fluorescent test can detect trace quantities of benzene in both liquid and vapor form. The new test uses paper strips impregnated with a supramolecular host-guest assembly ...

The one you want is Iris, that’s the setting for eye color. Pick a preset color - Here’s where the change kicks in. You no longer get to fine-tune your own shades with RGB sliders or hex codes.

Changing up your graphic, image, and text colors in Canva is a great way to make your designs pop, and it's really easy to do.

Best PC controller 2025 Find the perfect PC controller for you with our pick of the finest wired and wireless gamepads from Microsoft, Razer, Sony, and more.

Find the best tech you can buy right now, chosen by experts at Engadget.