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 ...

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 ...

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 ...

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 ...

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 ...