Most natural diamonds have ages between 1 billion and 3.5 billion years. Diamond is the only gem with a single element. Do ...

Plaster of Paris is a quick-setting gypsum plaster consisting of a fine white powder. The white powder hardens when moistened ...

A lead-acid battery is a type of rechargeable battery, invented in 1859. It uses lead plates (electrodes) submerged in ...

CNG (Compressed Natural Gas) is a natural gas stored under high pressure. It is lighter than air and ideal for vehicles due ...

It seems like every other day we hear about some hacker, tinkerer, maker, coder or one of the many other Do-It-Yourself engineer types getting their hands into a complex field once reserved to only a ...