Unclear Engineer's latest activity
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UUnclear Engineer replied to the thread NASA still investigating Orion heat shield issues from Artemis 1 moon mission.Bill, I agree that it probably won't work. But you did not take into account Wisetoe's proposed use of the steam created to produce...
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UUnclear Engineer reacted to billslugg's post in the thread NASA still investigating Orion heat shield issues from Artemis 1 moon mission with
Like.
Orion crew capsule weighs 8500 kg. Reentry speed is 40,000 km/h or 11,100 m/s. Kinetic energy is thus 1/2 * 8500 * 11,100^2 or 5.2e11... -
UUnclear Engineer replied to the thread Japanese satellite will beam solar power to Earth in 2025.I agree with Kipi regarding the strategic implications of space based solar. However, the opposite is true for DISTRIBUTED ground based...
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UUnclear Engineer replied to the thread Are we prepared for Chinese preeminence on the moon and Mars? (op-ed).I note that it has been quite a while since Space.com has even provided an update article on the SpaceX StarShip development program...
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UUnclear Engineer reacted to bernie's post in the thread Exotic 'Einstein ring' suggests that mysterious dark matter interacts with itself with Like.
The bilateral symmetry is a good indicator of gravitational lensing. The diametrically opposing red features are typical of perfect...
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UUnclear Engineer replied to the thread Space-based solar power may be one step closer to reality, thanks to this key test (video).https://www.smithsonianmag.com/smart-news/since-2016-80-percent-of-global-co2-emissions-come-from-just-57-companies-report-shows-180984118/
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UUnclear Engineer replied to the thread Object that slammed into Florida home was indeed space junk from ISS, NASA confirms.I agree that it is not as simple as putting a solid rocket on the trash and lighting it. It will need some sort of structure and a...
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UUnclear Engineer replied to the thread Object that slammed into Florida home was indeed space junk from ISS, NASA confirms.Jettisoning a whole package of heavy stuff held together by strong Inconel pipes seems pretty negligent. It would make more sense to...
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UUnclear Engineer replied to the thread Tiny black holes left over from the Big Bang may be prime dark matter suspects.Well, it is kind of laughable, but not really a "laughing matter". The nomenclature adopted by various branches of science theorists...
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UUnclear Engineer replied to the thread Object that slammed into Florida home was indeed space junk from ISS, NASA confirms.DUH! "Inconel is a nickel-chromium-based superalloy often utilized in extreme environments where components are subjected to high...
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UUnclear Engineer replied to the thread Tiny black holes left over from the Big Bang may be prime dark matter suspects.I'm thinking a Change.org petition.
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UUnclear Engineer replied to the thread Tiny black holes left over from the Big Bang may be prime dark matter suspects.The only "information" we seem to be able to get on black holes is there mass, and spin rates if the spin, and maybe net electrical...
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UUnclear Engineer replied to the thread Tiny black holes left over from the Big Bang may be prime dark matter suspects.BIll, That "answer" on Quora is inconsistent with the math I presented for the number of black holes required. "Two passing through the...
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UUnclear Engineer replied to the thread Tiny black holes left over from the Big Bang may be prime dark matter suspects.I don't think you can "look up" the answer to what happens if a proton sized black hole hits macro sized piece of matter. That falls...
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UUnclear Engineer replied to the thread Tiny black holes left over from the Big Bang may be prime dark matter suspects.Ok, let's look at it this way: The radius of a black hole's event horizon depends on its mass, so we can calculate the mass of a black...
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