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Grant Hartlage

  • Burlington, VT, USA

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34 What led NASA et al. to decide the ISS should be a zero-g station when the massive negative health and quality of life impacts of zero-g were known? Dec 1 '20
2 Using recent technology, how much electrical power could a nuclear reactor launchable by a low-level heavy-lift vehicle be developed to produce? Apr 7 '20
2 Would a nuclear turbojet with a chemical afterburner be a suitable intermediate between a pure nuclear turbojet and a nuclear thermal rocket? Jun 29 '19
2 What was the volume of the Space Shuttle orbiter, not just the crew cabin or cargo bay but the total volume of the entire craft? Jun 25 '19
1 Why was the reusability of the SSMEs so poor, and why was this considered acceptable given their purpose to launch a reusable vehicle? Dec 20 '19
1 Were there any identified launch windows and gravity-assist trajectories that could put a probe on a “Grand Tour” trajectory around 1981? Aug 26 '19

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