What are the three types of relationships

Why were most movies from the late 1890s until the early 1930s only filmed in black and white? there were only a few people who could afford the technology to produce color motion pictures back then. audiences did not want color motion pictures until later. the film used to make color motion pictures often overheated, which was a safety hazard, so it was generally not allowed. color films had to be hand-colored, frame by frame.

Computer programming is one type of what career

Software and services are used to conceive, plan, and execute projects in any field. these tools are excellent methods of increasing the probability of successful projects. open source linux project management mind-mapping