How are garnets made?

Carbon like diamonds, but the red color often comes from Iron.

The first solar cell was made by Charles Fritts in 1883. He created junctions by putting a very thin coat of gold on selenium.

2 Satellites are complex machine designed for a specific purpose, in the same way as aircraft carriers, and large jet liners. And their manufacture utilizes the same techniques. The vacuum...

Pretty much the same as they did 100 years ago but now they use machinary instead of doing it by hand. Cotton is cleaned and pulled through a comb to separate and straighten the fibers. Then they are...

Well violins are made from wood. Things like triangles and bells are made from metal. Not sure about plastic. But something like a guitar uses all 3! Like a wood used for the body, metal for the...