Shop It! This mirror is made with HD silver shatter-proof float glass that reportedly provides a crystal-clear, ...

With this sextant, one of the mirrors ( mirror A in the diagram) is half-silvered, which allows some light to pass through. In navigating, you look at the horizon through this mirror. The other ...

This is one of very few Roman mirrors of this type known from anywhere in the Roman Empire. A slave would have held the mirror by the ornate handles so that the lady could view her face in the ...

In the 1800s, highly toxic mercury was largely replaced with silver solutions; in the 20th century, aluminum emerged as a less-expensive alternative. More recently, so-called perfect mirrors have ...

By contrast, an open-cavity laser has a gas-discharge tube sealed with the fully silvered mirror on one end and a Brewster window on the other, which is a very flat piece of glass set at a steep ...