Image: Into the depths of the electromagnetic spectrum

It can be difficult in our everyday lives to appreciate the extraordinary range of wavelengths in the electromagnetic spectrum. Electromagnetic radiation—from radio waves to visible light to x-rays—travels through space ...

The human eye can see 'invisible' infrared light

Any science textbook will tell you we can't see infrared light. Like X-rays and radio waves, infrared light waves are outside the visual spectrum. But an international team of researchers co-led by scientists at Washington ...

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