lajoswinkler

Allegedly, all ballast was dropped before it was crushed. The crew knew something was going wrong. We will never know what they exactly thought or how long it took from the initial alarms to aborting mission to crushing, but it is likely, even though they experienced no pain, they've died in some degree of fear. Owner was probably more aware of what was going on.

I don't really understand the engineering idea behind using carbon fiber for outside pressure. Those fibers are strong for tensile stresses and make up excellent pressure vessels when the direction of winding criss-crosses (Titan's fibers were just wound like coil). However, they crumble upon compression, and they have different response to stress than epoxy, so it's certain that epoxy microfractures and fibers detaching from epoxy substrate will develop on cycling the stress. To be blatanly honest, I think Oceangate is very much a form of cargo cult - fancy, modern, high technology material used for the sake of it, when it really was the thick epoxy resin that held against caving in, deteriorating more with each change of pressure.

Not really, no. With loss of oxygen, even if carbon dioxide is removed from air, it won't be a pleasant loss of consciousness, and neither will actual death be painless. There is no sedation, so confusion and fear will mix with euphoria. After losing consciousness, cardiac arrest will cause a buildup of respiration waste products and pain - there is simply no general anaesthesia. Carbon monoxide poisoning is also painful. Natural deaths are painful. This is why all euthanasias simply require general anaesthetics, to numb the nerves and central nervous system. I'd rather be exposed to a huge pressure pulse in a fragment of a millisecond than die by any so called "peaceful death". Those are peaceful for observers only. Yes, loss of structural integrity would be many times faster than those railroad tanks. It's hardly comparable. It's so fast we couldn't see it move. Indeed, Titan had a carbon fiber body covered with a titanium hull resting on it. Bad design. You are right, there would be shattering involved. When I found out the submarine had a carbon fiber structure covered with a titanium sheet I couldn't believe how the hell anyone ever agreed to ride in it.

There is nothing in such situation that could cause an explosion. Pressures of the environment are just too high. I just hope the vessel got crushed in a fragment of a second at some great depth. Situation where vessel is sinking uncontrollably and slowly getting crushed would be so horrible. Considering a debris field has been found ("tail" and base), it most likely occured suddenly, otherwise there would be very little reason for the submarine to produce a debris field. I'm pretty confident pressure vessel will be found nearby, looking very flat.

Some eyecandy.

Sure, there is no such thing as perpetual machine of the third kind, but some things are close to it, considering our ephemeral experience with the universe. Even a rotating body in intergalactic space isn't perfectly spherical and gives off gravitational waves. Unmeasurably tiny energy is given off, but still, it exists.

But it is defined as one type of a perpetual motion, the third kind.

That is only the first kind of perpetual motion machine. There are three kinds. OP mentioned the third kind - perpetual motion due to the lack of energy dissipative forces (mechanical friction, etc.) and planetary bodies far from stellar bodies are almost such things.

It depends on how distant the galaxies in question are. If you are sufficiently far away from them, in one of those large voids, you would see nothing real. Only retinal phosphenes. That would be a scary experience - lack of proprioception and visual signal input would make the brain come up with something on its own because brains don't like zero processing. The visual reality of space is that it is a black void. Exceptions are highly condensed bodies, luminous or illuminated, and rare examples of nebulas which are frankly always very dim and therefore gray (approaching them does not help as they are not point-like light sources). There are no vivid colors. There are no rainbow nebulas, no spiky stars, no tantalizing vistas. Sun is not yellow, but pure white or, if dimmed sufficiently, gray. Supernovas' detonations take months and even if we were there, we couldn't see their parts moving outwards because speed is limited to c and they are so enormous. Solar prominences don't fall like rain. It's all so slow because it's all so huge. Fastest celestial movements are starlight suddenly peeking from a planet or a satellite moving out of the way. Yes, there are photons being emitted which would give us sensation of color if their number was plentiful (and that color would almost always be pink-red with some violet, courtesy of ionized omnipresent hydrogen and helium), but they are scarce and our retinas are small so we see nothing or see a monochrome, almost gray hazy blob. Space is almost entirely (I can't emphasise word almost enough) a black, cold void hostile to life in every single way and that reality is frightening and fascinating at the same time.

You don't sound like a real person, but like a software that's producing a very sophisticated word salad.

Never before have I managed to capture such details on Venus and I've been trying for well over a year now.

I wouldn't even say uplifting. Yuck.

This is taking too long. Maybe it rolled down a slope.

Lander reconnection successful. Landing thrusting in progress.

It's a private mission.

I'll be honest, I had no clue about this mission...

Stream will be here.

Yesterday's work because the sky finally granted me with lack of clouds and twitchy jet stream. Highly resolved Sun's pore in the active region 3284, imaged in green light (and subsequently colored to match the channel) which is for most intents and purposes equivalent to Solar continuum or white light. Details the size of France can be noticed. Pore is somewhat smaller than Europe. Next, active region 3282 sunspots, very large system with a gigantic lightbridge almost long as Earth's diameter. Earth could probably fit inside the largest sunspot's umbra. Imaged in green light, but left in black&white for clarity. Orientation is adjusted so that the closest Sun's limb is at the top, which gets us a nice "aerial" view of the scene. And no, you're not wrong, lightbridge really does stick upwards, it's not an illusion. Same scene 18 minutes later, but this time imaged in soft ultraviolet radiation. Intense faculas grouped in plagues can be seen emanating from spaces between granulas. Granulas themselves seem "hairy" because, in this electromagnetic band, beginnings of lower chromosphere can be seen. Almost only the hottest part of the lightbridge is seen radiating. Amount of amperes there has to be fantastic.

It's "deflagration", not conflagration. Deflagrations and detonations are types of explosions, however low end deflagrations can't be really called explosions (otherwise a paper caught on fire could be called one), but there isn't a strictly defined lower end AFAIK. You got it correct, detonations have supersonic fronts. I've heard people consider detonations to be true explosions, but that's just semantics.

Turn it off (for the ship; the rest of us need gravity for air pressure LOL), you get very high with ease. If you want to turn it off and stay there, you have to accelerate to first cosmic speed. So, turn off, get up there, accelerate, turn back on. However, what does it mean "to turn it off"?Turn it off for the ship in relation to Earth? What about the Sun? I assume you don't want Earth to escape beneath you. This is more complicated than it seems.

It's very difficult to work with and it's extremely dense. Welding out in the open is nearly impossible, it has to be done either in vacuum or with very high electrical beam currents under helium. There is really no need for it. It can be done with steel.

Barry Humphries, comedian best known for his character dame Edna Everage, born in 1934, dies aged 89. https://edition.cnn.com/2023/04/22/celebrities/barry-humphries-dame-edna-dies-intl/index.html

The sentiment of the media is "haha, Musk couldn't make it go even with all that money, it went kaboom, serves him well". It's demeaning. There is much more to Starship than just "big rocket go to space". Like with Apollo, it's a thing all humans can share together. Mocking it is pathetic. Just to be clear, I don't like Musk, but I love SpaceX.

I'm very disappointed by the lying, sensationalist news outlets that filled the world with titles saying that Starship exploded. It did not "explode". It survived all that tumbling, went off course and then flight termination system broke the vehicle apart. If it weren't for FTS, Starship would probably fall as one piece into ocean. I mean, even Scott Manley uses this misleading, spiteful expression. What the hell? Also, Musk seems to be adamant on not using flame trenches and that's just idiotic.

Not even close. Flight termination system disassembled the rocket and it spread in the air. It was a deflagration, not a detonation.