light
Latest about light
Can anything travel faster than the speed of light?
By Joe Phelan published
Here's the science behind whether anything can travel faster than the speed of light.
Light pollution: Environmental impact, health risks and facts
By Scott Dutfield published
Reference Discover the facts about light pollution and its impact on the environment and our health.
How do energy saving light bulbs work?
By Mark Smith published
Reference Energy saving light bulbs: mechanics, efficiency and designs
Your pupils can count … sort of
By Yasemin Saplakoglu published
New research suggests a person's pupil size can change based on the number of objects an individual observes in their visual field.
What would happen if the speed of light were much lower?
By Ashley P. Taylor published
Here's what would happen if the speed of light were orders of magnitude slower.
Why does outer space look black?
By Tiffany Means published
Several cosmic characteristics, including the lack of an atmosphere, lend space its dark color.
Amazing astrophotography: How some of the most iconic space images were captured
By Ailsa Harvey, How It Works magazine published
These incredible space photos were taken using advanced techniques to reveal some of the wonders in the universe.
This optical illusion tricks you into seeing different colors. How does it work?
By Nicoletta Lanese published
This image is an example of the Munker-White illusion.
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