joigus

Thank you, Zapatos. I've found a little bit more of the geological history on Wikipedia: https://en.wikipedia.org/wiki/Kegon_Falls From https://www.visitnikko.jp/en/spots/kegon-falls/ The place is such a tourist magnet that it's kinda difficult to find something more science-oriented about it: Geology, fauna and flora, etc.

Another real-estate agency's hopes have been shattered, as we speak.

I always thought they were laughing.

NASA has found water on the Moon's lit surface. https://www.npr.org/2020/10/26/927869069/water-on-the-moon-nasa-confirms-water-molecules-on-our-neighbors-sunny-surface?t=1603753199805 https://www.nature.com/articles/s41550-020-01222-x#_blank Abstract from Nature Astronomy: Interesting news, though not Earth-shattering, probably.

Testing some inline maths like \( d^{3n}xd^{3n}p\rho\left(x,p\right) \), \( y = x^2 \) or \( \varepsilon_{\alpha\beta\gamma}\varepsilon_{\alpha\mu\nu}=\delta_{\beta\mu}\delta_{\gamma\nu}-\delta_{\beta\nu}\delta_{\gamma\mu} \) should work.

Mating-brilliant. (@ Koti.)

LOL. A noose, that's what it is. <giggle>

I was thrown away from that discussion with the escape velocity.

IOW, why are acids so important, so central to chemistry? They say the basic unit of chemical exchange is the electron. But that's only half the story. Protons are very powerful mediators of chemical reactions too. And the reason is that the size of a hydrogen atom compared to the size of just a proton (ionized hydrogen) is like the size of the Earth compared to the size of an orange. So when you have a substance that is capable of liberating protons, you're liberating myriads of little "positive versions of the electron," so to speak. That's why there is no central concept in chemistry of how easily a substance can liberate any other ion, like e.g. Na+. But liberating H+ is very powerful, very reactive. Protons are elementary particles, small as can be, and move about very freely, especially in aqueous solution. The mitochondria in your cells are powerful proton-pumps.

Then I can trust you. Some people even proactively overreact. I always consider things reactively or retroactively.

I'm reading more info about it and I also made a mistake. It was 5 times. I've read it was 7 somewhere else. But Ian Plunkett's --Twitter's spokeperson-- words are: When someone "proactively implements" something my BS alarms go off. And the adverb "proactively" would really make it worse, not better, if it did happen. OTOH, these claims seem hard to just make up. The guy took screenshots. Are they fake? Why no explanation about the screenshots? And it's true that Trump's Twitter account is small potatoes, but this guy has access to top-security material, I suppose. Can't anyone give him a quick tutorial on safety security procedures? I know you've proactively considered these possibilities, @iNow.

Careful. They could hire you as digital-security expert. Oh, I always think things can be made worse.

The story from a non-political medium: https://techcrunch.com/2020/10/22/dutch-hacker-trump-twitter-account-password/ If seven tries is all it took Victor Gevers to use the psychological method to crack the US president's Twitter account. How bad is that for the Western world? Your thoughts eagerly awaited.

You seem to be overly interested in words and moot points. Saying just "thermodynamics" suggests either classical, chemical or equilibrium thermodynamics; all of them based on equilibrium. There's also statistical mechanics, but that's almost never called thermodynamics. And there's non-equilibrium thermodynamics, but that's such a misnomer (it's not about just heat, temperature, and the like) that everybody referring to it always mentions it by the whole name, "non-equilibrium thermodynamics," only to make clear that it's not thermodynamics (T, Q, etc.) Here are all as covered by Wikipedia: https://en.wikipedia.org/wiki/Thermodynamics#Branches_of_thermodynamics https://en.wikipedia.org/wiki/Non-equilibrium_thermodynamics You tell me which one you're referring to. There's also kinetics, but I'm not interested in climbing the tower of Babel. I meant (and I said) regions of phase space. Regions of phase space are not regions of 3-dimensional space. You're confusing both. I mean volumes in the way of, \[d^{3n}xd^{3n}p\] IOW, regions in a humongous 3Nx3N-dimensional space. It is in that space of huge dimension where sampling is robust. Macroscopic systems are ergodic, meaning that time averages give you a very good idea of phase-space averages (averages to all momenta and all positions) when systems are at equilibrium or going round and round in cycles. The molecules you describe as going up to the outer reaches of the atmosphere have to go back and recycle, participating in the overall thermal and dynamical processes, and exchanging the energy. That's the key. But all this is quite academic and, if pressed, I wouldn't be too sure of anything, the way you seem to be. Here's a much more intuitive explanation of why sampling in this way works even for chaotic systems: Tim Palmer's lecture at Perimeter Institute Lecture: Climate Change, Chaos, and Inexact Computing 11' 40''-16' 37'' (I copied the link starting at about the time when he explains the point.) I'm not an expert in climate change. @Area54 or @Ken Fabian can probably give much more accurate information and point out my excesses. I just wish to argue with my toolkit. And with my toolkit at hand, the arguments about "global warming" (however much of just a catchphrase that is) make a lot of sense to me.

Yes, you're right. My own pessimistic thinking is that we would be so busy at each other's throat that nobody would care about other survivors out there. But your question is very interesting, as well as the answers so far. I do believe with you that attempts at communication with intelligent animals should be a good laboratory for that hypothetical situation. Maybe we can train some animals to speak once a code is "agreed."

This is a very good idea. I just hope when/if they read the message, they don't mistranslate it to "Hey, there's food and other usable energy here."

Thermodynamics is the study of equilibrium. The Earth is not a system in equilibrium. Climate science most emphatically is not sheer thermodynamics. Thermodynamics, e.g., does not allow you to calculate anything statistical, like, e.g., fluctuations. Statistical mechanics does. In (most) statistical mechanical systems, you can see that the temperature is the average kinetic energy per degree of freedom. These degrees of freedom are coded in what I called specific heat. Because systems are ultimately Hamiltonian, they satisfy an interesting mathematical property: The phase-space points can mix all they want (and in chaotic systems they do, which makes averages more robust, not less), but they do not contract in volume, meaning that microscopic systems spread their dynamical information very efficiently. IOW, there is no chance that a small region of phase space can store big quantities of energy making local averages non-robust, as you are suggesting. As to local cooling: If the first statistical moment of the distribution is shifting, an increase in the second moment is exactly what I would expect before the system reaches the next closer-to-stationary stage. If the variance goes up, some places would overheat and others would "overcool." Nothing unexpected there, because the system is "trying to equilibrate." So temperature measurements are significant. But they're not the whole story, as has been pointed out to you over and over. The sea is nearly a perfect absorber of radiation and the ice caps are nearly a perfect reflector (albedos.) There is the question of sea currents too. The ice caps should be building up by now because we are well within a Milankovitch cycle. They're not: It's just the opposite. This will interrupt the circulating flow in the seas. None of these important details seem to have caught your attention, which would have amounted to an interesting conversation. All you're interested in is to not let go of your strawman (the average temperature parameter) and punch its face repeatedly. The average temperature, being significant, is the catchphrase you've chosen to attack. It's your voodoo doll against climate science. Your point does not stand, it's a blurry blob. Your strawman does.

Monitor the trend of the averaged temperatures of a turbulent gas measured over wide spans of time and space which have highly heterogeneous pressure and surface conditions. Exactly. Of the average temperatures of a turbulent gas measured over wide spans of time and space which have highly heterogeneous pressure and surface conditions. You seem to have a very basic problem of understanding. And @VenusPrincess, don't go further in that direction, because I can see very clearly now how much you ignore about ergodicity and the role it plays in physics. Doh!

A statistical distribution is made up of an infinite series of statistical moments. What you're saying is that the first statistical moment is not significant. Never mind that reports of global temperature are meant to monitor general trends, not to build a rover to operate here or there. @Area54 has seen your strawman miles away. I was distracted. <T_Mars> = -63 ºC <T_Venus> = 453 ºC So this is utterly useless even to build a rover? I don't know why you want to build a rover in order to monitor Earth's global climate, by the way. If you wanted to build a rover, it would be silly to rely only on average global temperature as "the" parameter. I wouldn't describe the behaviour of an ant's colony only in terms only of its average position either.

Not everything that's useful or meaningful as an average must have a valid thermodynamic definition. The average receding speed of the galaxies is increasing, yet the universe is not a thermodynamic system. The concept of temperature that's used in these atmospheric models is more akin to the concept of temperature in the heat equation. It is not the thermodynamic concept of temperature but for small cells of material that have a definite specific heat. Do you suggest the Earth's atmosphere does not have a useful concept of specific heat?

You already said. Sorry.

Glycine has been found in asteroids too. It's the simplest amino acid. https://www.newscientist.com/article/dn17628-found-first-amino-acid-on-a-comet/

You make a good point here, but there are other factors. I can imagine no epoch in human evolution in which planning for the future, interpreting other people's intentions, guessing the best solution to a domestic problem --all of which is achieved mainly through language-- did not play a major role in women's lives. It is generally assumed that high-brow intellectual activity was what led to developing big (energetically costly) brains in humans. But the big pressure, the day-to-day strain on the brain to be able to develop more sophisticated cognitive abilities, is social, not inventive. That's what most anthropologists say. I may be able to provide more info about it later. It's been estimated that the main focus, by and large, of human language throughout the day is gossip, not the realm of 'big ideas.' And that goes for women and men alike.

This is known to be false. https://www.nasa.gov/pdf/64249main_ffs_factsheets_hbp_atrophy.pdf https://aging.ufl.edu/files/2011/01/deconditioning_campbell.pdf

Exactly. A person with few glicolytic fibers, a person whose body cannot synthesize myoglobin properly, etc. But also a person who doesn't exercise properly. The women that you're showing in the video --I haven't watched it either-- both are genetically conditioned to be that way, and have exercised to be that way. So it's a combination of both factors. Having a certain genetic make-up favours you being more muscular, but it doesn't determine it.