Astronomy from the Space Shuttle

Modeling the Space Shuttle

We summarize our methodology for modeling space shuttle processing using discrete event simulation. Why the project was initiated, what the overall goals were, how it was funded, and who were the members of the project team are identified. We describe the flow of the space shuttle flight hardware through the supporting infrastructure and how the model was created to accurately portray the space...

Space Shuttle Technical Conference

Microgravity Research in the Space Shuttle Era

NASA dedicated over 20 shuttle missions to microgravity research as a primary payload, and many more missions carried microgravity research experiments as secondary payloads. The space agency’s microgravity research strived to increase understanding of the effects of gravity on biological, chemical, and physical systems. Living systems benefited as well. Cells, as they adapted to microgravity, ...

Rms Operations Support: from the Space Shuttle to the Space Station

Like many other technologies, space robotics has evolved significantly over the past twenty years. Canada in general, and MD Robotics in particular, have contributed a great deal to these advances. This contribution is highlighted by the development and operations support of MD Robotics’ Canadarm and the second-generation space manipulator, Canadarm. In this paper, we will highlight the experie...

Quantum shuttle in phase space.

We present a quantum theory of the shuttle instability in electronic transport through a nanostructure with a mechanical degree of freedom. A phase space formulation in terms of the Wigner function allows us to identify a crossover from the tunneling to the shuttling regime, thus extending the previously found classical results to the quantum domain. Further, a new dynamical regime is discovere...