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Watch a beam of light bounce off mirrors in ultra-slow motion

Physics

Watch a beam of light bounce off mirrors in ultra-slow motion

For the first time, researchers have taken a video of a pulse of laser light as it moves in three dimensions, using a camera with a shutter speed of a trillionth of a second. It could potentially be used to see around corners

News

branched light

Physics

Soap bubbles can split light into otherworldly branching streams

News

Psychedelic skies over Chile reveal the full extent of light pollution

Humans

Psychedelic skies over Chile reveal the full extent of light pollution

Regulars

Why bats and nocturnal animals hate light pollution?

Video

Why bats and nocturnal animals hate light pollution?

Video

Light-emitting fabric samples

Technology

Gold-coated fabric that emits own light could be ultimate safety gear

News

Electromagnetic spectrum

Definition

Electromagnetic spectrum

Double-slit experiment

Physics

Photon trick lets you bend the rules of quantum physics

News

Seeing around corners: How to decipher shadows to see the invisible

Technology

Seeing around corners: How to decipher shadows to see the invisible

Features

Bubbles show their iridescent beauty as light journeys through

Technology

Bubbles show their iridescent beauty as light journeys through

Regulars

Special relativity

Definition

Special relativity

Einstein’s theory of how motion warps space and time

Physics

New kind of light is a vortex beam that twists faster as it moves

News

Health

How getting more daylight can improve your mental and physical health

Features

Physics

Purple or brown? This 3D-printed cup changes colour in different light

News

Environment

Light pollution has reached fragile habitats and may threaten wildlife

News