Green Baron

Jumping out of the window with: "Video driver !" (splatters on pavement) :-)

https://www.ngdc.noaa.gov/hazard/tsu_travel_time_events.shtml

You mean from its origin to a far coastline over the water ? The 2004 Indian ocean tsunami @James Kerman mentioned is (to my limited knowledge) one of the best if not the best studied one up to now. If you are looking for a very bad case: a giant landslide ("flank collapse") sending 100s of km³ from 2000m asl down to the abyss at >4000m depth in one huge submarine "debris flow" would stir up a huge water column. That is about the max earth has in store, because slopes directly near the sea are rarely higher and mostly found on volcanic islands, and sea floor doesn't get much deeper. There are models for propagation and dispersion of the resulting wave(s) in the open ocean, trying to include the various effects of sea floor, mounts, ridges, reflection of waves, coastline effects, geography, etc. How realistic they are can be debated. Or made into a movie :-)

lol ! Had i known this ...

I see. Yeah, but that's normal. Or prograde ? :-) I recall, that when i studied, it was the order to get somewhat proficient in 3 fields or archaeology during basic studies: first stone age, second neolithic and metal times, third medieval archaeology. After 2 years, we had to pass a brief exam where the professors checked what we had learned, before we were allowed to specialize ourselves. So, after having passed myself through the other two, i went into the medieval exam which interested me as much as a bicycle tipping over in central China (no offense dear Chinese colleagues :-)), said that to the consternated lady who was a year before retirement and asked to get over with this asap. I then briefly answered 3 of 5 questions and said idk to the other two and was told that she let me pass despite of my insolence, but she did not want to see me again in the medieval department. She didn't. I must add, i was a senior student and could simply afford being bolder than the young ones. Do not do this at home ! If someone had to complain here, its the medieval archaeology prof. :-)

Well, that depends on local geography. But a human can not run away from it even if the way is free. They can reach 100s of meters of height in extreme cases (channeling, running up the opposite hill) and enter 10s of kilometers into flat coastal areas or valleys. Or not be noticeable at all :-) There is a lot of information, including modeling and examples from history or geology if you like it somewhat founded. Youtube has pictures from waves, either breaking into harbour basins or on beaches, water that has broken outside and is rolling onto the shore and into the second row behind it or up through channels from the coast.

I can imagine (but do not know) that a software engineer is challenged to at least superficially grasp new concepts with every project, if he/she is not only doing documentation stuff. A little flexibility opens up new ways. We live in the longest boom times of history, or so i read .... :-) Oh, and i have nothing complain about today yet. But the day has just begun. Comes time, comes complaint

Short answer: yes. Edit: not "wipe out". Long answer: Flank collapses are frequent on the Canary islands, they actually form their shapes. A really big one happened on this island ~440,000 years ago and subsequent erosion formed the scenic Caldera de Taburiente with the extinct volcano Bejenado in its center. People are aware and the western flank of the Cumbre Vieja (which is the one in your question) is under constant observation, by laser distance measuring, GPS and satellite. The small movements that occur are interpreted as settling, not as precursors of immanent movements of larger masses. These events can be really catastrophic, the sediments of larger debris flows have been located in the deep sea all around the islands. Shall i inform you when the neighbour slides down the sea ? But all in all, i'd say, tropical storms should be of greater concern. Tropical Atlantic was unusually cold this year (-0.5° below last 20 year's medium), which made the season quite calm. Edit: flank collapses are a possibility and no bunk. If they really cause giant tsunamis in the Americas is hardly known. Wet feet are a possibility, but probably nothing highly destructive. They do cause ~200m tsunamis on neighbour islands, in the Canaries as well as in the Cape Verdes, due to geography and short distance.

I live on La Palma island ;-) ... where a stoned idiot caused a huge wildfire 2 years ago.

Bach ? So ... systematic. Not rather Beethoven, Verdi, Händel, Mozart, R Strauss ? + Galileo (he was an artist as well !). Oh, that's six (coffins) already. I kick out Händel, Verdi and Strauss, keep old Ludwig for the Overture and Mozart for quick Requiem (unfinished, of course), Paul Bocuse for the catering, S. Dali for picturing the time that won't pass and Keith Haring as a fresh spot among the others and to decorate the interior. His figures are weightlessly floating anyway. I kindly beg for pardon, but i simply do not know enough contemporary artists ...

I do not know your installation but it seems to me that something has been messed up long ago, which could be the reason for your packaging tool being out of sync with your installation. Maybe it was the desktop switch though that should work imo. At least it does in debian, but i read ubuntu is somewhat special with its desktop integratoin. Too much integration :-) I think you are on the right track now: Do a new installation. Forget lvm if you don't need it for spreading partitions over physical or logical volumes or use raid levels >2. Ext4 can resize as well, though i would just plug in another harddisk and file system links for shifting directories to other partitions if space gets narrow. And use rsync for mirroring. Suggested partitions: swap 5GB / ext4 formatted 50GB /home ext4 formatted big enough :-) If you have server stuff that you want to separate that'll be on an own partition or better, on an own machine. This i run on my workstation since many years without any problems. If i mess up something (which i did in the beginning) i can at any time delete the system partition /, format and start anew without touching my data, savegames, photography stuff, programming nonsense, etc on the /home partition. I know this is a workaround, not a solution :-)

That's is my opinion as well. I don't expect any outcome worth noting if that trip takes place at all. But i am much more radical on this. I don't even expect the public to care much, if at all, about a pack of helpless brats under observation in a plastic box. Sure, we won't get around being annoyed by this type of low quality afternoon entertainment. We'll have a hard time trying to ignore it. But i strongly doubt anybody would really care, it would be as boring as watching people sitting in a plastic case talking about nothing, and during the ad block things are already forgotten. It will be pure show, nothing noteworthy. The first gag of that sort (fh trip for two guys) has already been canceled, though a certification for capsule and rocket is probable for the next 1-2 years. If they really wanted to fly, they could make this much more concrete right now, really selecting people and starting to train them and actively working towards the goal of sending them around the moon in 3-4 years. But nothing like that, which makes me strongly believe that the bfr trip is, what the fh trip was before. Hot air. It'll be canceled just like the previous try or pushed far into the future (like 10 years). I hope i appear more funny than offensive :-)

Surely not, but smoking ganja in the late 40s is a severe case of losing the sense for reality, even more so in his situation. It shows a childish attitude of a phase of life most people leave behind at 18-22 (or earlier) ...

Thanks. That clarifies my misconception.

I may be totally wrong, but i have the impression that the question may be: What happens, if a neutron star steps over the chandrasekhar limit from below, i.e. its mass returns back into the range of a white dwarf. Will it fly apart ? Yes probably, but it won't return to a white dwarf state and a white dwarf won't return to a red giant state. It is only the nuclei of the stars that formed the denser objects, the atmospheres where lost in the process. But afaik these processes don't happen irl, in contrary, dense matter attracts more matter. A physicist may find a better explanation, i only have very basic knowledge :-) ---------------- Edit: that brings me to a question: The sun has Schwarzschild radius of 3km or so (?). Can we imagine the part below this horizon as a black hole or is it only degenerated and will "reappear" if we stripped the sun of its mass ? Same question for a neutron star, where the ratio between radius and Schwarzschild horizon is much bigger.

Well, there are a lot of tips in the threads on stargazing and astrophotography. First i must say (being an owner of a 115/705mm APO and 200 f/5 Newton) 350 funds is not much, don't expect much more than you have now. If you can wait and save something, do so and use the 60/700 for another while. Second, visit cloudynights forum as well. You need: the tube (a newton, others are two expensive for the budget), a mount (probably a dobson rockerbox), 3 eyepieces. If the telescope is around f/5 (let us say a 15cm aperture/75cm focal length), maybe a 36mm, 20mm and 10mm eyepiece. Probably an adapter and a tube piece of 4 and 8 cm to vary focus distance for different eyepieces. Maybe you can find a good offer for a used scope ? You're from GB i assume ? Here is a link to a telescope manufacturer just for information. Their mirrors have a good reputation. http://www.orionoptics.co.uk/home.html Don't confuse with the American brand Orion, though ! For a real thing that is visible better than your small refractor you'd have to spend around (Euro) 300 for the tube, 300 for a manual equatorial mount if you don't want dobsonian mount, 20-50 per cheap eyepiece, 40-70 for reasonable ones (Plössl). That's the low range if you don't want plastic lenses. --------------- Just searched their website: Their 15cm newton with a manual eq mount is around 520 pounds i see: http://www.orionoptics.co.uk/VX/vx6-6l.html . I find it a good offer. Order the polar view finder for another 30,-. Later, the mount can even be fitted with drives for the first photographic steps.

Antarctica: Along the coastline and on the dwindling shelves, yeah. 60°S corresponds to latitude of Helsinki for example on the northern hemi. It is a long way over ice still. My point above was about the glacier highlands. There are very few research stations, but the few people that stay there over winter are hand selected and stay there over winter. There is no supply during that time and a rescue operation would be extremely dangerous (though it was done) and may strand more people there. @wumpus got a point, nobody will (can) build a permanent colony there. Assuming that a hand full of scientists and/or military men/women cut off from the outside for 4 months are no colony.

Good points, almost convincing, buuuut i don't think artists will change the public perception. Maybe for a week or two if all goes well, a month or two if bad things happen. The masses can't even afford a business class flight, space flight will always (i say) be out of their world if they must pay for it themselves. A clothing billionaire isn't always at hand when you need one to buy you a ticket ;-) For those who want to go to other planets space needs not more artists but exploration and research. We want to be sure that things work in a certain way, with technology, plans a, b and c. Not with pictures, rhymes, music, lyric or so, that comes automatically then. Bringing them first to praise the feeling is the wrong way round. There are more than enough artist's impressions imo, no need to add more. Musk is formidable in catching attention for some time, but lately has made grave mistakes that destroy his credibility. This actually does not serve his cause in the medium run if there is no workable technological way to make people live in space. Or has he no other use for the bfr ? That could be it ... Just my opinion ...

Hmmm, i cannot precisely define that, though i pride myself of knowing the basics of pelaeontology. The point is, we do not know the exact conditions that led to the emergence life on earth. We have a picture, the elements, a range of probable conditions and locations, reasonable suggestions of possible ways, but no hard measurements because the stuff is gone. That is as sorry as i am about it, not precise, at least not precise enough to define what is necessary elsewhere for a similar thing to happen. We simply have to wait until we find some. Which is highly improbable but not impossible, there i agree. Life is also about metabolism, stuff is taken in, transformed for energy and upkeep, and other stuff drops out. Usually that what drops out is not beneficial for the producer and must be recycled by another organism or process, or the organism goes headlong. The initial conditions need further development, coarsely said. If there are only vents, right temperature and nutrients, things may start but soon suffocate on their own dirt. Water, yes, nutrients, unclear, but probable. Energy, unclear but probable. Time and stability for microbes to emerge (on earth a few hundred million years) ? Maybe (i would say probably), but unclear. For my understanding, the habitability depends on an atmosphere and moderate temperatures as well, both aren't present on Mars (maybe were in the beginning under a high pressure CO2 rich atmosphere). I deeply understand your annoyance ! But we need to name the criteria for habitability to carry on and there is no consensus that i see, and methods for their detection; on which people are working. Well, yeah, trivial ? Pour microbes on a the surface of mars, and they would thrive (*) ? Really ? Idk ... i am almost sure that that would not work. I am not a believer in panspermia. Count me to the abiogenesis side. The initial point was "Can we do an atmosphere that is thick enough to walk without a pressure suit ?" and the answer was unambiguously "No.". There isn't enough stuff. And building a bucket chain isn't really an option :-) As is schlepping stuff there with other means, at least for the foreseeable future. We are not talking about cartloads. (*) Edit: It might be worth looking for analogies on earth, in really hostile places, which are still cozy compared to Mars. Gobi, Rhub-al-Khali, Antarctic highlands, salt lakes, Atacama ... maybe the sauce will make it in some spots, but i dare say, that one would find enough places were the fellows just die. And again, that is a home match in comparison to Mars' surface or subsurface.

Sort of. Out of curiosity i made that poll, just to see if people would actually go themselves on such a trip if offered the opportunity. I know there is a strong bias here and if really standing in front of the hatch the one or the other may still falter, but i think we have a picture :-)

The force to react to posts has not yet returned to me ... That is my thought as well, even public transportation in tubes where a train every 5min can transport 100s of people must be subsidized. That makes me doubt that a system for individual transport that has a much lower capacity than a tube system with light rail can actually earn money. Only if there are enough people willing and able to pay for privacy and speed ...

There is an ambiguity ? I wrote the explanation of what i meant to clarify that the ship has demonstrated that it can work ...

Who said that ?

That is ok for me. I hope you ticked "no" then, because you are not on the flight. --------------- I can't add more reactions today, so anyone explaining him/herself feel reacted upon :-)