The twentieth century saw the construction of telescopes which could produce images using wavelengths other than visible light.

They often are able to use wavelengths that canopy plants cannot.

This is one reason that early long distance radio communication used long wavelengths.

Photochromic materials have two states, and their interconversion can be controlled using different wavelengths of light.

Most modern radio systems and devices use wavelengths which would then have been considered 'ultra-short'.

Some reactants are able to use specific wavelengths of light more effectively to complete their reactions.

He used wavelengths as big as a human.

Instead, hydrogen and these other molecules are detected using other wavelengths of light.

He was the first to suggest using wavelengths of light to standardise measurements.

Faced with physics like that, engineers have taken the obvious approach: use shorter wavelengths of light.