Today's electrical appliances are controlled by membrane switch panels, where the contacts are silver. Membrane switch panels are found in microwave ovens, automobiles and under the keys of personal computers. Here silver is used to prevent the buildup of bacteria and algae in the filters. Research has shown that the catalytic action of silver, in concert with oxygen, provides a powerful sanitizer, virtually eliminating the need for the use of corrosive chlorine. Although a wide variety of technology is available, silver-based photography is expected to dominate the market for the foreseeable future due to its superior definition and low cost.
Silver halide is the material that records what is to be seen in the photograph.
As little as 4 photons of light activate silver halides which amplify that incident light by a factor of one billion times. In today's photography, silver halides are coupled with dyes that bring the color of the world around us into permanent record. Everyone is accustomed to silvered mirrors. What is new is invisible silver , a transparent coating of silver on double pane thermal windows. This coating not only rejects the hot summer sun, but also reflects inward internal house heat.