To be clear, there is no acid rain at the surface of Venus. It can be corrosive for other reasons, but not from acid rain.

Not saying that certain individuals like the prime minister or the defense minister speak for the country itself, or for the individual members of the population. It is important to distinguish between leadership and the actual poeple. However statements like "We are fighting human animals and we are acting accordingly" and vowing to eliminate everything do sort of have that war crimesy taste to them.

The logical problem you have there is that either the US has achieved regime change and the former Ayatollah _was_ the responsible party, or the current regime is still the responsible party and it's a lie that regime change was achieved.

Basically though, the regime in Iran is certainly terrible. Most people who are against the war would still be quite happy to see them go and for Iran to transition to a stable, non-authoritarian nightmare democracy. However, we've also been around the block a few times and seen this all before and we recognize that people who tout the defense of the Iranian people from massacres one minute, then fall in line with a civilization dying tonight (or any night) are hardly likely to be the ones who finally succeed in mass bombing an autocratic state into becoming a liberal democracy.

Just to be clear here. You are being satirical right? It's so hard to tell these days.

Or you just keep them wrapped in insulation with a heater keeping the electronics at Venus temps from the moment they are manufactured until they land on the surface, at which point you shut off the heater. The temperature on Venus, while super hot, is also very stable. You just have to maintain that stability before it gets there.

I would say that's probably not such a huge challenge since silver solders melting points start around 618 Celcius and the temp on Venus is actually "only" around 464 Celcius. As a general rule, you don't want a solder too close to its melting point for both electrical and mechanical reasons, but that seems far enough away to be reasonable.

I am wondering though if, even if these chips can take the temperature, if the combination of temperature and pressure might not be an issue. Of course, you could deal with pressure by putting the electronics core inside a pressure vessel. Of course, if you're going to do that, you could just use more temperature sensitive electronics and put them inside a double pressure vessel with fluid cooling in the center vessel and an insulating vacuum in the outer vessel and a multistage heat pump/exchange system from the inner vessel to the outside to cool the electronics.

That's only if the pressure is an issue, of course. If not, then you could be golden with your super high temp chips. Of course, there are some serious questions about long-term operation at those temperatures. How long are the chips good for? A protected electronics module in a pressure vessel might still be the way to go.

What can I say except that in the beginning the Universe was created. This has made a lot of people very angry and been widely regarded as a bad move.

Look, the codes are printed in dark red on light red in the manual. There's no way anyone could photocopy that.

So not only is it ridiculously unethical, it's utterly pointless and a sad waste and inconvenience or worse for everyone involved? So, a typical DRM scheme.

From what I could find, it would work out to about 47 or 40 with a reasonable safety margin (and because it's a nice round number, though now I realize I should have gone with 42 because it's what you get when you multiply six by nine and also how many roads a man must walk down). Of course, that would only be if you were sourcing all of their oxygen through this system without any recycling (like with plants, or some catalytic electrolysis process to break down CO2). If it's supplemental, to replace losses, the number it could support should increase to thousands.

Not if the oxygen partial pressure is the same. However, if the atmosphere is just oxygen at about 3 psi, they will have to deal with dehydration (as is common on jet flights, but worse) and pressure related issues that are not conducive to long-term good health.

Helium would have most of the same problems as pure oxygen. In a nitrogen/oxygen atmosphere the nitrogen is a heat sink and the density of the air slows down convection. In a helium/oxygen atmosphere, even at full pressure, the helium is barely a heat sink at all, and the air density is barely above just the oxygen alone, so convection is barely slowed. Ultimately, nitrogen is the best choice, and throw in all the argon you can get your hands on.

It is survivable from the perspective of getting enough oxygen. In fact, breathing would be even easier because the air would be less dense. However, there are a series of other problems that would make it suboptimal. Dehydration is a major one. Then there are various pressure related issues including lung problems. Long term, it's not very good for human health, and it's not comfortable. There's also the increased flammability. While the partial pressure of the oxygen is the same, the nitrogen in the atmosphere normally acts as a heat sink, and the lower density of the air overall increases the supply of oxygen to fires because of faster convection. The same things are true if you make up the difference in pressure with low density helium.

Pure O2 atmospheres seem like they solve a lot of problems, but they introduce their own. Generally speaking, even just for the comfort factor, it makes sense to have a full density atmosphere in a long-term space habitat.

As another poster pointed out, they're not talking about helium-3, just regular old, second most common element in the universe, helium. By mass it's available in the regolith at about the same abundance as nitrogen by baking it. Of course, by volume at 1 atm of pressure, it's available in much more abundance than nitrogen from the regolith. The fact that it will leak out like crazy and cause communications issues. As observed, you would be squeakier, but also it's harder for sound to transfer to the eardrum in a heavily helium atmosphere, not to mention that there's much greater attenuation of sound. People wouldn't be able to hear each other across much shorter distances than in a regular atmosphere, even if they could adjust to the weird sound of voices.

It's available from regolith, though at a high extraction cost. I've written a number of posts on this subject elsewhere in this thread, but if you need nitrogen on the moon, there's plenty available at the poles in the form of ammonia. It's right there with all the ice.