It was around 1870 when the British physicist John William Strutt, better known as Lord Rayleigh, first found an explanation for why the sky is blue: Blue light from the Sun is scattered the most when ...

Apple today announced refreshed 13- and 15-inch MacBook Air models, now featuring the M4 chip, an upgraded camera, and a new ...

The blue of the sky comes from Mars’ atmosphere and the ozone absorbing other colors. There's a ton of ... good at absorbing blue light. …the deep, rich shade of blue we now see at twilight ...

Apple announced the new MacBook Air, featuring the performance of the M4 chip, up to 18 hours of battery life, a new 12MP Center Stage camera, and a lower starting price. It also offers support for up ...