Adding lamps, string lights, and other outdoor lighting is a great way to make your yard and porch look charming and inviting, and security lights can of course be important for s ...

Lasers are known for the monochromatic nature of their light ... the entire visible spectrum. It’s great to see projects like this that leverage low-cost, easy-to-source equipment to explore ...

White-light sources based on reliable and energy-efficient ... two or more wavelengths are required to generate a broad spectrum of light that is a better approximation of a black-body radiation ...

Greetings, stargazers. Spring is galaxy season for many amateur astronomers. However, when looking through an eyepiece instead of a camera for astrophotography, you might think of this as the season ...

are also light sources. They make their own light to attract mates to breed with. We can split white light into a spectrum of colours using glass prisms or the reflective side of a CD. Most ...