» full product range available at the ag shop | the ag shop has an extensive range of products in stock or that we can order in for you.. We put the surface book and the surface pro 4 head-to-head in eight categories, including battery life, design, keyboard and display quality.. The history of technology, history of science, history of inventions, the scientific revolution, the industrial revolution, the internet, space, communications, computers, electronics, software, semiconductors, energy and power, electrical machines, chemical engineering, iron and steel, aviation, civil engineering, applications, inventors.
Dear ken i have been failing miserably in anodizing for a week now. have been trying all kinds of chemicals. first i have been degreasing in sodium hydroxide than i put in nitric acid, after that anodizing with 0.8 amp 20sq/inch tried with 1.5 amp and many different voltages. all connected directly to anode as aluminum piece.. Get the latest news, commentary, and video for political events, politics, and the government.. Screenwriter of 'black hawk down,' ken nolan, talks about fighting for the film you're passionate about all while delivering what the suits expect and want, even if they keep changing their minds..