Unclear Engineer's latest activity
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UUnclear Engineer replied to the thread Relativistic time dilation.Interesting. Relativity Theory has been a good description of reality, but not really an explanation. Attempts at explanation talking...
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UUnclear Engineer replied to the thread SpaceX could launch 1st Starship to orbit in January, Elon Musk says.Read the link - not impressed. Some obviously silly errors, such as the 1st stage was not planned to come down in the "Pacific". It...
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UUnclear Engineer replied to the thread A hidden 'super-Earth' exoplanet is dipping in and out of its habitable zone.I agree that humans would probably not find Kepler-725c "habitable". For one thing, its gravity is likely to be high, and its...
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UUnclear Engineer replied to the thread A hidden 'super-Earth' exoplanet is dipping in and out of its habitable zone.The article says that the stellar heating of Kepler-725c is 1.4 times that on Earth. I think Venus is about 1.9, and rather constant...
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UUnclear Engineer replied to the thread A hidden 'super-Earth' exoplanet is dipping in and out of its habitable zone.A planet that large repeatedly going in and out of the calculated "habitable zone" with the frequency of its 207.5 earth-day "year"...
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UUnclear Engineer replied to the thread Big, dead satellite's crash was a space-junk wakeup call, experts say.Some comments on the economics: 1. Bill is basically correct that the choice is mostly based on the delta-V requirements. And...
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UUnclear Engineer replied to the thread Elon Musks says SpaceX could begin 'decommissioning its Dragon spacecraft' after Trump threat to cancel contracts.There is an obvious pattern to Trump's relationships, so I would argue that this relationship disassembly was very predictable. I...
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UUnclear Engineer replied to the thread Elon Musks says SpaceX could begin 'decommissioning its Dragon spacecraft' after Trump threat to cancel contracts.This is getting ridiculous and tragic. Because Trump seems to pretend that he never backs down, he might be thinking he could just...
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UUnclear Engineer replied to the thread Relativistic time dilation.That part where I think you are missing something important. If I am on a muon heading towards Earth at nearly the speed of light, and...
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UUnclear Engineer replied to the thread James Webb Space Telescope unveils fiery origins of a distant, hellish exoplanet.How do we know that WASP-121 b has stopped migrating inward? Maybe it is still migrating now, and will end up getting inside the Roche...
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UUnclear Engineer posted the thread "Big Bang May Not Be The Beginning of Everything, New Theory Suggests" in Cosmology.I am going to throw this out as a new thread, even though it is relevant to many of the ongoing threads, because it would be buried in...
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UUnclear Engineer replied to the thread Lunar landers and 'Transporter' tankers: Blue Origin unveils its blueprint for the moon.Glad to see this from Blue Origin. It looks like a viable approach, but seems extremely ambitious for a first launch with lunar landing...
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UUnclear Engineer replied to the thread Cosmic miracle!' James Webb Space Telescope discovers the earliest galaxy ever seen.Some of the things that have not made sense to me about the first few hundred million years of the BBT have to do with the assumptions...
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UUnclear Engineer replied to the thread Cosmic miracle!' James Webb Space Telescope discovers the earliest galaxy ever seen.Just saying that there seems to be an awful lot conjectured to be happening in a couple hundred million years, compared to the pace of...
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UUnclear Engineer replied to the thread Cosmic miracle!' James Webb Space Telescope discovers the earliest galaxy ever seen.It sort of annoys me that astronomers insist on calling element such as carbon and oxygen and nitrogen "metals" and then talking about...
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