So not too long ago, I was watching the people in the kitchen at Carl's Jr making the food. I noticed they were using their bare hands. I thought they were supposed to be wearing gloves?
It started about 5000 years ago. No, that is not a typo. From the copper development association, The craftsmen who built the great pyramid for the Egyptian Pharaoh Cheops fashioned copper pipe to convey water to the royal bath. That was indeed, over 5000 years ago. It was at the end of the 1920s that copper was first introduced in the U.S. as supply pipeing, and before that cast iron had replaced the very first systems which were wood. Yup, wood. From comes this little tidbit - In old construction, lead plumbing was common. It was generally eclipsed toward the end of the 1800s by galvanized iron water pipes which were attached with threaded pipe fittings. Higher durability, and cost, systems were made with brass pipe and fittings. Copper with soldered fittings became popular around 1950, though it had been used as early as 1900. Plastic supply pipes have become increasingly common since about 1970, with a variety of materials and fittings employed, however plastic water pipes do not keep water as clean as copper and brass piping does. Copper pipe plumbing is bacteriostatic. This means that bacteria can't grow in the copper pipes. Plumbing codes define which materials may be used, and all materials must be proven by ASTM, UL, and/or NFPA testing. So it isn't exactly clear when each type was first introduced as many different types overlaped each other, but in general, and concidering *modern* as being after 1900, galvanized was probably more frequently used than copper, even though copper goes back much further. Al
Get help now. If what you say is true your mom sounds highly depressed and schizophrenic. Walk to your school and tell your counselor. Or google the police station's number and tell them all of this. You really need help, and so does your mom and brother. It may seem drastic but don't wait until things get worse. Get help immediately.
