The incandescent light bulb was one of the first early applications of electricity, and it’s hard to underestimate its importance. But before the electric light, people didn’t live in darkness — they ...

Explore the multifaceted concept of the prism, illustrating how it reflects the interplay between perception, light, and ...

The blue flash is a rare atmospheric optical phenomenon observed at sunset, appearing just before the Sun's last rays disappear below an unobstructed horizon. This phenomenon occurs because Earth's ...

IN such elementary text-books on geometrical optics as I have consulted it has always seemed to me that the writers have found a difficulty in presenting a precise direct proof of the theorem that ...

Matt Demers is a Toronto writer that deals primarily in the area of Android, comics and other nerdy pursuits. You can find his work on Twitter and sites across the Internet. I'm a big fan of puzzle ...