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Everything posted by Hotel26
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3) Earth is in the Goldilocks[1] zone.
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Only the obvious implication that this too is NOT modeled. It does seem that, during the average 12 hours a day of sunlight, albedo cutting 50% of incoming solar energy would be far more significant an effect comparatively than that of terrestrial radiation, even over a 24 hour period. Otherwise, we'd have a constantly-warming earth, with constant cloud cover, and runaway temperatures. Yes? I do remember in the video some views from space of the planet, showing great patches of cloud cover somewhere over the vast expanse of our oceans (very bright, very white).
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He was the grandson of TH Huxley, a protege of Charles Darwin (known as "Darwin's bulldog") and an active supporter of Malthusian ideas on population control. Another grandson of TH Huxley, Aldous Huxley, is most famous for his 1932 novel, Brave New World. [Not a topic for this forum.]
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Nobel Laureate John Clauser: Climate Models Miss One Key Variable (also on Apple Podcasts) (both audio only) (original video episode at American Thought Leaders, but behind a pay-wall.) I saw this on American Thought Leaders when this interview first came out in early September(?) but the video was behind a paywall and I couldn't share it easily. The summary is that Clauser claims that the IPCC has a collection of ~40 models that all work only part of the time and generally do not agree with each other much of the time. NONE of them work with cloud cover: that is to say that they all omit cloud cover as a variable, and assume clear skies. Clauser, a physicist (quantum entanglement) and a sailor who has crossed the Atlantic, noticed that cloud cover cuts energy input to the surface by 50% (out in the Atlantic on the open ocean). Noting also that more than 60% of the Earth's surface is ocean, he thinks of the global weather system with cloud formation as a gigantic planetary thermostat (paraphrase). Greater temperature causes increased evaporation and humidity and cloud cover, reducing retained energy input from the Sun, causing coolling as positive feedback. His conclusion has been that miniscule anthropogenic inputs to our global system are well within the ability of nature to compensate. The above is by far the best interview with Clauser after he made his recent public statements. (As I recall, he received his Nobel Prize in 2022, and was then safe to state his mind in 2023.)
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For Questions That Don't Merit Their Own Thread
Hotel26 replied to Skyler4856's topic in Science & Spaceflight
the acceleration on all 3 (car, warship and person) is identical. The force applied is greater for the warship than the vehicle (proportional to mass of each) -- and, in each case, a small component of the force applied to/by the car and vehicle is transmitted to the person, in proportion to the mass of the person. Actually, no, and one has to understand now the term "G-force". [The first two terms (mass, 'stress') are related, but not the third, when acceleration is the same: "same turn, same speed".] So assuming that the "same turn, same speed" is constant, but we are increasing the mass of the vehicle -- and considering F = m . a -- same turn/speed requires the same acceleration, so F (force) will have to increase linearly with m (mass). The force applied to the person will be the same, because the person's mass is still the same. Because it is hard for a person to think in terms of the acceleration applied, and because they feel this as heaviness or weight, especially in the common case of fighter pilots or F1 drivers, the standard, useful comparison is by weight and this is not only related to your mass but also the Earth's gravitational field. It's only a comparison and the G-force you mention is not in this case nor usually due to gravitational force. Gravitational force is the pull of the Earth or any body with significant mass, but G-force is expressed as an acceleration, e.g. 9.8 meters per second per second, which has the mass factored out and is just a standard acceleration. Maybe this will help. A conventional airplane flying level at constand speed in a 30-degree bank will execute a standard Rate-1 turn (180 degrees in 1 minute). "G force" will feel slightly higher than in straight & level flight. In a 60-degree bank, G-force will be 2 G's and be very noticeable. This is a Rate 2 turn (360 degrees per minute). You will find this very noticeable! And this does not depend upon your weight on the bathroom scales or the type of equipment. There is technically a gravitational force, but whenever you usually hear the term G-force, it will be referring to the acceleration applied -- not only by gravity -- but very often any kind of acceleration being measured by this useful yardstick. it is often abbreviated to "G's", which is maybe less confusing. -
I can't remember the last time I lost BOTH stages... Uh, RSS, OK...
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Uh, this is crazy stuff. I have to Endorse this... +10
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Just a bit too aggressive with the aero-braking, descending from GKO (Geosynchronous Kerbin Orbit, for a (missed) return to KSC, after depositing a geosync spy cubesat...
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Quite so. I recommend this great article: Getting Started with Kerbal Konstructs by @Caerfinon
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I was able to land my X-37B impression on the Mun at Armstrong Base. The attempt to relaunch it: was madly successful:
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Thank you indeed for your post. I got all inspired and did an impressionist (not replica!) version, OTV-37, and have been having a lot of fun with it. It has a small equipment bay and I'm thinking I might be able to jimmy some SCANsat instrumentation in there (but probably not); and I'm about to send one to the Mun and attempt a landing and return from there. For no obvious logical reason. It is fun, anyway, to have up in a 60-degree orbit and then pick an airport to attempt to bring it back to. [I now return you to your SpaceX live feed.]
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What's an RPG, What's a Simulator, and why KSP2 is (or is not) one of them
Hotel26 replied to Lisias's topic in The Lounge
I'm not a nitpicker, nor a nitpicker's son, yet I'll be a nit-picking simulacrum until a nitpicker comes. There! I used the word simulacrum in a meaningful sentence...- 57 replies
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Good Ways To Refuel Ships From Ore Outposts?
Hotel26 replied to DannySwish's topic in KSP1 Gameplay Questions and Tutorials
(Welcome to the forum!) You are 'on topic' in that your proposal is about mining ore on Minmus. And I suppose that if you were playing Science or Contract, 'earning' the ore on Minmus is free (except for your time), but this would not be a good solution in Sandbox in which you are orbiting (in LKO) very close to the source of free fuel. You just need a way to get it into LKO or -- preferably -- two ways. I give to you: Titan v2 Titan v3 -
What's an RPG, What's a Simulator, and why KSP2 is (or is not) one of them
Hotel26 replied to Lisias's topic in The Lounge
Monopoly, for instance, yes. Chess, Go, Poker, lots of puzzles: no. (Predictably someone will seize upon the notion that chess has 'knights' and 'bishops'. No, it has fanciful mnemonic names .) What is common about all games is that they have rules. Those rules are set by the creator. They can be entirely abstract, imaginary, creative. Or restricted, in certain genres, to some simulacrum. This is a useful term ( @Lisias ) because it does somewhat differentiate 'simulator' which commonly connotes some rule subset from reality (for a hopefully fun activity at home). As Jack Handy once mused: "Space is not only 'hard'. It is also not 'fun'. Get an aerospace job. See what I mean."- 57 replies
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[1.8.1] Kerbal Konstructs - 1.8.1.15 - 15.Dec.2019
Hotel26 replied to Ger_space's topic in KSP1 Mod Releases
Not ideal, but you can use the scale factor in the static pop-up. You will see it default as 1.0, but you can reduce that to e.g. 0.5 (type it in). It scales the width, too, of course; the size of any markings, etc. The result is plausible on approach, so, hey... -
You know... about a day after I built the airport on this strange little island... I had a Simplicity booster return for ASR recovery, that thundered overhead just a couple thousand meters above... Who knew building real estate downrange from KSC was not a good idea! I would have posted screenshots, but it was a night-time return. Anyway, I named it Kobe Island because the Kobe airport in Japan is built offshore on an artificial island. Which I think is totally cool -- because 'aerospace'.
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I've had an inkling for some time that this was about to occur. An island has been thrust up suddenly from the seabed... Volcanic action? Kraken activity...? [click + arrow => slideshow] I call it Kobe Island. It is located at 0N 70W about 50 klicks downrange from the Kerbal Space Command. The island is only 1 m ASL but it's still going to need a boat ramp to allow aquatic traffic in and out. Probably a high-speed ferry in its future. It's a nice place to pack a Sunday picnic lunch and take a Gopher for a joy ride.
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Hey, I guess I did. I will tell you what the best thing about being this old is... ...one Monday morning, the whole school all being gathered into the assembly hall to watch, live, Neil Armstrong set foot on the lunar surface -- and being 14 at the time: which means I most vividly remember the whole experience and all its excitement. I will add that my country at that time also predated color TV (1975). So we were pretty lucky to see it at all. (Not that the transmissions were in color; just that technology was backward there then.) And I predated TV in my country (1956) also.
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Precisely. Bring back Felipe. Fire all the fans full of ideas but no code. "Community input", so-called, should be via code with pull request. Nothing good has ever been done in the computer industry "by committee". Nada... Wishful thinking? Sure, but so refreshing and so very well-earned after five years of listening to the "cargo cult" wail for KSP2.
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Be it known by proclamation: The Royal Plus-One Order of Merit has been awarded. -- King Farthur
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Overnight, I took a break from playing KSP (!!) and wrote a small Python program to 'cleanse' various add-on MODULEs from craft, in transit through my Export directory, destined for KerbalX. It means that I can keep e.g. AtmosphericAutopilot, RasterPropMonitor, MAS and SCANsat installed but purge traces of those before publishing vanilla craft to KerbalX. The recently-installed SCANsat was the add-on that pushed me over the edge.
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There are two things I don't like. 1. The first thing I don't like is clutter. For a long time, I cursed KSP because occasionally when I returned to the Tracking View, it would light up ALL the various craft types by default and show LOTS of clutter, especially relays buzzing everywhere. I would turn them all off except the type I was particularly looking for. Occasionally, when exiting the Tracking View (via the exit door) rather than e.g. switching to a ship, I would turn off that last type selection I had lit, so that everything was clean & tidy for the next use. Well, that was the problem: KSP figures it is useless (and perhaps confusing) to have no types lit, so it helpfully? then lights them all for you. Curses, KSP!! So now I just leave something like EVAs lit, because there are very few of those in progress. 2. The second thing I don't like is programs that make "useful assumptions and then (silently) take unilateral actions" -- such as the above. Double curses, KSP!! I was indeed very happy when I solved this mystery, though.
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Very respectable! Precisely why you should get respect.
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Just posting this one for posterity, as well. (Not a landmark, since I'm giving the coordinates.) 0.25S 27.7E Diamond Lake is easy to miss. The surrounding grasslands are elevated 600m higher than it. Discovered it on an equatorial ASR sweep for spent boosters and the like.
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I recognize both those places, the first at 110W on the equator is the staging point for deorbit to KSC for many approaches. The other one is further West at the shore of the land mass that contains 'Dessert Airfield'. A little south outside the view of that shot, is another patch of submerged terrain, like an underwater island, where the water depth is only about 4m deep, as I recall. But you've asked a good question. Go take a look at e.g. Kayak Club to scratch your itch further...