In the experiment, a high-power green laser passed through a ruby cube, illuminated from the side by a blue laser. The green laser increased the ruby’s absorption of the blue light, creating a darker ...

Casting a swirling shadow, a glowing candle flame sways eerily before flaring up once more. As ghostly as it looks, this ...

After discussing the quirks in 3D modeling software, where a laser beam is treated as a solid object that can cast a shadow, scientists decided to experiment in real life — and found that laser beams ...

Let's Learn is available to stream on pbs.org and the free PBS App, available on iPhone, Apple TV, Android TV, Android smartphones, Amazon Fire TV, Amazon Fire Tablet, Roku, Samsung Smart TV, and ...

A total solar eclipse will darken a swath of North America as the Moon blocks the light of the Sun for a few minutes on April 8, 2024. In addition to casting a breathtaking, passing shadow over the ...

Researchers have found that under certain conditions, a laser beam can act like an opaque object and cast a shadow, opening new possibilities for technologies that could use a laser beam to control ...

A Rochester Institute of Technology astrophysicist is part of a team of scientists using the Hubble Space Telescope to study how the changing patterns of shadows cast on the dusty disks orbiting young ...