green "laser pointers," often used in presentations given in large rooms, generate their light. Airy beams promise remarkable advances for engineering. They could form the technology behind space ...

Light beams are supposed to be perfectly straight, aren't they? Yet a new trick of optics now appears to make light rays curve in midair. Light beams can get curved if they pass through areas ...

A bright green beam of light could be seen over Leicester ... "Tonight we’re shining a bright beacon of light from Curve for our brilliant city and its resilient communities." ...

The post shows a green laser ... a straight laser beam and the water below should increase as the beam travels further away from its source as a result of the curve of the Earth.