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Phil Metzger

@DrPhiltill • 100,837 subscribers

Director, Stephen W. Hawking Center for Microgravity Research & Education @UCF. Prev: co-founder NASA KSC Swamp Works. Space Mining. Space Settlement. Science.

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I’d like to reemphasize this. The dust you see is not settling. It is still going uphill when it flies over the horizon and out of view. It is like a rocket that has curved below the horizon but is still climbing. If you get this, it makes sense why it clears the view so fast. /1

I’d like to reemphasize this. The dust you see is not settling. It is still going uphill when it flies over the horizon and out of view. It is like a rocket that has curved below the horizon but is still climbing. If you get this, it makes sense why it clears the view so fast. /1

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The same robot dumping its massive load of regolith. Notice the dust jets that suddenly shoot out as soon as the vibrational system turns on. Dust will be the biggest tech challenge on the Moon but it is solvable. Also notice the flashing navigation system for autonomous ops.
0:29
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The same robot dumping its massive load of regolith. Notice the dust jets that suddenly shoot out as soon as the vibrational system turns on. Dust will be the biggest tech challenge on the Moon but it is solvable. Also notice the flashing navigation system for autonomous ops.

Phil Metzger

63,608 次观看 • 1 年前

A student I’m working with, Noah. He built a test rig to study how dust behaves along the plume reflection planes for a multi-engine lunar lander, using a crane to lower it to the lunar regolith simulant like a lunar landing. This is just cold-compressed gas, not hot fire thrusters, and it is ambient pressure, not vacuum, but it is valuable to study the phenomenology of dust behavior in complex flow fields and it is a first step before higher fidelity but more expensive tests.
1:30
DrPhiltill's profile picture

A student I’m working with, Noah. He built a test rig to study how dust behaves along the plume reflection planes for a multi-engine lunar lander, using a crane to lower it to the lunar regolith simulant like a lunar landing. This is just cold-compressed gas, not hot fire thrusters, and it is ambient pressure, not vacuum, but it is valuable to study the phenomenology of dust behavior in complex flow fields and it is a first step before higher fidelity but more expensive tests.

Phil Metzger

16,726 次观看 • 6 个月前

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