TL;DR: Summertime calls for backyard barbecues, beach hangouts, and more — make sure every hangout is backed with great music playing on this portable JBL party ... light effects or preset ...

It delivers 1,800 ANSI Lumens and can create an image of up to 120 inches in normal lighting conditions ... be the ideal summer party projector This 4K portable laser projector goes twice as ...

An atom laser flowing from top to bottom makes a “caustic”, a refracted pattern like that often made by light, as it encounters an obstacle. Credit: Washington State University ...

Now physicists have found these complex, self-repeating patterns in a very unnatural spot: laser light. Peer closely at a small section of a fractal, and it looks just like the whole. About 20 ...