We live in a scientific age. Millions of young people study science, thousands of universities teach it, and hundreds of publications chronicle it. We even have a cable channel devoted exclusively to its wonders. We are immersed in technology rooted in its discoveries. But what is science, and who was its first practitioner?
Science is the [...]

Opal:
Opal has been a mystery for centuries. No two opals look alike. The word ‘opal’ was derived from a Greek word opallos, meaning “to see changes of color”. Opal is derived as a precious gemstone which is formed from non-crystalline silica gel. It consists of 6 to 10 per cent water and small silica spheres [...]