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Comment Re:We're headed for Venus, but still we stand stro (Score 1) 66

To be extra clear, here: titanium melts around 1,900 kelvin. The temperature of re-entry is 3,200 kelvin. Yes, 3,200 kelvin is "below" the temperature required to make titanium boil (by 300 kelvin), but you'll note that the 1,900 is 3,200 by 1,300.

Who honestly thinks titanium that's been heated to 'just below' its boiling point for half an hour, will be somehow intact once it's slow enough to not self-generate plasma due to atmospheric drag?

Ridiculous.

Comment Re:We're headed for Venus, but still we stand stro (Score 1) 66

How does a thing that isn't water, 'water in the ocean'? What? A thing can't water. The only thing that is water, is H2O.

Also, no -- it will not survive atmospheric re-entry. The atmosphere see to that. The heat of re-entry exceeds the temperature of Venus by *THOUSANDS OF DEGREES*.... It will not survive in 1 piece. This isn't a matter of atmospheric pressure, nor is this a matter of G-shock. It's plasma; it'll be in an envelope of super-heated plasma. Why do you think they can't use the radios on the Shuttle during re-entry? High energy plasma -- at THOUSANDS OF DEGREES.... Sheesh.

Comment It won't survive re-entry. (Score 1) 66

'"As this is a lander that was designed to survive passage through the Venus atmosphere, it is possible that it will survive reentry through the Earth atmosphere intact, and impact intact," Langbroek wrote in a blog update"'

Uh, no.

1) High-energy plasma at 3,200 K upon re-entry. This occurs for 25 minutes or so. This is why Columbia became ... a large number of pieces of wreckage strewn across multiple US states.
2) Venera probes use drag-parachutes to reduce velocity to the point that they can survive entry into the atmosphere of Venus. But, this was built by the Soviet union -- it didn't get out of low Earth orbit. Do you think that parachute functions? It doesn't, it won't.
3) The reasons cited for it 'surviving' re-entry are ... G-forces and atmospheric pressure. None of those address the fact that, though the surface of Venus is ~= 737K ( https://ancillary-proxy.atarimworker.io?url=https%3A%2F%2Fen.wikipedia.org%2Fwiki%2F... ), you'll notice that the surface temperature of Venus is 2,463 kelvin 'colder' than atmospheric re-entry. What material do you think the probe is made of? Unobtanium?

Ridiculous. It will not survive atmospheric re-entry. it will not be 'a single piece' when it (or most of it, the parts that weren't vaporized by high-energy plasma), gets to sea-level.

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