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3-D printed Vanderbilt hopper car
I model the Western Maryland Ry. (WM) from the 1920s to before the start of World War II. Appropriate commercial models of ...
USA TODAY reporters covered the historic events. They were inside the Capitol, walking the streets, at the White House and ...
Self-assembly is the process by which an organized structure spontaneously forms from individual components, as a result of specific, local interactions among the components. When the constitutive ...