A glass prism is a transparent object having two triangular ends and three rectangular sides. The refraction of light in glass prism is different from a glass slab. This is because in glass prism, the ...

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 ...

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 ...

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 ...

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 ...