Shack–Hartmann sensor: An instrument that divides an incoming wavefront into multiple subapertures to analyse local tilts and reconstruct the overall phase.

We'll start by learning all about what Andy can do as the newest character in City of the Wolves, and then watch the Arc System Works showcase live!

We scoured Evo's 4th of July Sale to find the best deals on gear we've tested and love. Save up to 50% on snowboard, ski, and bike gear.

Find the latest Ophthalmology news articles, videos, podcasts, and meeting coverage from medical experts and key opinion leaders you trust.

If you're thinking about buying or upgrading your camera, these are the best full-frame models we've tested.

The best smart thermostats we've tested can control your home's heating and cooling with your phone or voice—and might help you save on energy costs.