How do you find the quality of the light a light bulb produces? Using the color rendering index, a measure of how well a light bulb illuminates a range of colors. Appliance Science looks at the ...

Scientists have used a new lens to focus all the colors of the rainbow into one point. This is the first time a single lens has been used to focus the entire spectrum of light, including white light.

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. There’s an interesting volley online right now between two science ...