A new experiment has demonstrated something that sounds physically impossible – light itself casting a shadow. It turns out that if you manipulate a laser just right, then hit it side-on with another ...

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 ...

Ben is a writer who's obsessed with all things PlayStation, Pokemon, motorsport, and sci-fi. No relation to the Harry Potter villain. (Probably) In a surprising yet not entirely unprecedented turn of ...

For the experiment, a high-power green laser was directed through ruby cube and illuminated with a blue laser from the side. The green laser increases the optical absorption of the blue illuminating ...

Light's shadow: Researchers showed that a laser beam can sometimes act like a solid object and cast a shadow that is visible to the naked eye. In the picture, the shadow appears as the horizontal line ...

Fifth graders at Dutch Lane Elementary School in Hicksville are bringing the classroom outside as part of a science experiment. During the space systems unit, teacher Stephanie Sullo engaged her ...

Measuring tall items or buildings is possible for you to do, even if you don't have a ladder. But how? In this experiment, you will be using shadow heights created by the sun to measure! You will ...

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 ...

Sight begins with light. Look around and everything you perceive is the result of particles of light bouncing off surfaces and traveling to your eyes. For millennia visual artists have played tricks ...

Researchers can reconstruct a scene that's hidden from a camera's line of sight. This is an Inside Science story. Shadows are everywhere. Some may look like formless blobs, but researchers are now ...