How about being able to see things normally completely outside the visual spectrum, like hydrogen ... seeing the truly invisible. The project has not only fascinating application examples, ...

Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to ...

From the warm glow of the sun to audible radio waves and invisible gamma rays ... Each type of light has a different wavelength and frequency. Understanding the electromagnetic spectrum is important ...

Our eyes can only see light in the ROYGBIV spectrum - the specific wavelengths that the receptors ... These different invisible lights are useful in technology, too. Household items like TV ...

The colors of rubies and emeralds are so striking that they define shades of red and green—ruby red and emerald green. But have you ever wondered how they get those colors? Paper-thin optical ...