Willis Carrier submitted drawings of the first modern air conditioning system on July 17, 1902. Carrier was working to solve a problem that effected the quality of printing… He came up with the brilliant idea to circulate cold water rather than steam through heating coils in a machine he used to test heaters. Carrier’s design …
Tag Archives: mechanical
Why is Dentistry so out of date?
Brushing, flossing, white strips and mouthwash: Thanks for all the help, but your services may no longer be required. The end of the cavity could be upon us. UCLA microbiologist Dr. Wenyuan Shi has developed a mouthwash that completely eliminates the most malevolent of the 1,000 species of bacteria that can live in your mouth—after …