In a discovery that challenges conventional optics, scientists have managed to make a laser beam cast its own shadow—a feat previously thought impossible, as light typically passes through other light ...

Shadows have been integral to humanity’s exploration of light and its properties. From their depiction in ancient shadow puppetry to their role in groundbreaking scientific discoveries, shadows have ...

Explains the concept of light traveling in straight lines and demonstrates this through various experiments. It shows how light can be observed through holes in cards, how it behaves in a lightproof ...