We are planning on purchasing 3 fire extinguishers for my house. We are thinking of putting one in the kitchen, one in the basement, and one next our breaker box. Are these the best places to put them? If not, where should we put them? Also, what type of fire extinguisher is the best for a household?
salt lowers the freezing point of water
The Romans had glass drawn into fibers, but they did not use these for fibre optics as we know it. In the 1790s, the French Chappe brothers invented the first optical telegraph yet it used a free air and not glass. In the 1840s, physicists Daniel Collodon and Jacques Babinet showed that light could be bent, but they used water not glass. In 1880 Alexander Graham Bell patented an optical telephone system called the photophone. Also in 1880 William Wheeler invented a system of light pipes to direct light around the home. In 1888 in Vienna,Doctors Roth and Reuss, of used bent glass rods to illuminate body cavities. In 1930 German Heinrich Lamm was the first person to transmit an image through a bundle of optical fibers. Many people have contributed innovations in use and manufacturing but it would be hard to say that someone invented something that was in use and patented previously.
