Industrial fan. Industrial fans and blowers are machines whose primary function is to provide and accommodate a large flow of air or gas to various parts of a building or other structures. This is achieved by rotating a number of blades, connected to a hub and shaft, and driven by a motor or turbine. The flow rates of these mechanical fans range from approximately 200 cubic feet to 2,000,000 cubic feet per minute. A blower is another name for a fan that operates where the resistance to the flow is primarily on the downstream side of the fan.
The Manhattan Project. The Manhattan Project was a research and development program, led by the United States with participation from the United Kingdom and Canada, that produced the first atomic bomb during World War II. It was also charged with gathering intelligence on the German nuclear energy project.
6. Lise Meitner, Otto Hahn, and Fritz Strassman in 1938 discovered the process of nuclear fission in Germany. This was the experiment that perhaps most directly led to the physics behind the atomic bomb.Soon after, this experiment was repeated with success in the US.he scientific developments that directly led to the first atomic bomb (fission bomb) was the discovery that you could split an atom in a process called nuclear fission and harness the energy. The main developments that led to fission and the atomic bomb are as follows: 1.