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Everything posted by Green Baron
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Are these tubes or just a canvased frame ? I am not sure about the relevance of the ting, but i do not know the details.
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- mars
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http://www.marssociety.org/ .. is a private organization dedicated to the exploration and settlement of Mars.
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That is why we need fossils. Hardware rocks. And has physical parameters for measurement and classification. But of course, it is nice if genetics contribute their part.
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This is extremely interesting ! I haven't been following this, but somebody i knew spent a lot of time trying to argue in favour of the southern route (pm me if you want to know): https://www.nature.com/news/2011/110126/full/news.2011.55.html Edit: oops wrong paper: http://science.sciencemag.org/content/331/6016/453
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Yep, and the Arabian desert is in between, if they took the southern route. I don't know about the climatic and environmental conditions there, but the Sahara went through changes in the late Pleistocene, making it inhabitable from time to time. So maybe the Arabian desert too ? Some land masses might have been connected through sea level low stands, or at least in sight from shore to shore, nevertheless it is a long way from Africa into Australia, and it apparently took humans >150ky for the journey. Until we know of older occurrences, of course. It can only get older :-) The evolutionary path from archaic forms to the likes of us is not linear. Several lines on different evolutionary stages went side by side and all except one ended up sorted out, making the puzzle not easier.
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Morning, good to see that we basically agree on the dates of emergence of modern humans. What remains is the morphological "modernity", which is a soft and gradual criterion but a distinguishable one. And, besides the wave 70-50000 years ago, the question when they left Africa. Probably at all times throughout the development. That find is extraordinary and greatly widens the evolutionary range of modern humans in time and space of origin. Cheers and piece :-)
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Any Train Simulator/model railroading geeks here?
Green Baron replied to Kerbinchaser's topic in The Lounge
Ok, i can control a locomotive's speed and directions and its functions from the (Linux-)PC with JMRI and rocrail. Tomorrow to the track switches and decouplers. One has to give user access to the usb and uucp group, or the kernal can't lock the files. Alternatively one can run the whole stack as root but that isn't exactly Linux style ...- 239 replies
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Random Science Facts Thread!
Green Baron replied to Grand Ship Builder's topic in Science & Spaceflight
And even that is by far not the first or only one :-) Evolution of language ... i think (without proof ;-)) that we can put it among earlier forms than even archaic Homo sapiens, like Homo heidelbergensis, ... https://www.ncbi.nlm.nih.gov/pmc/articles/PMC454200/ But this is all under discussion. https://www.nature.com/articles/nature01025 Edit: but i think @insert_name meant "other than humans" ... :-) -
Yes, besides [snip] these are the early and transitional forms that lead to anatomical modernity. The path to modern humans, from 500ky to 250ky before now. Of course they are not full featured modern humans themselves, who said so ? They are the archaic forms you came up with. [snip] Or do you assume that someone snipped a finger and there were the modern humans ? Then we have a principal problem ! Also, at these times and long afterwards there were more than one human species and subspecies on earth, living side by side. We have to combine the pieces of the puzzle to a picture. That is our work, and the pieces are bones, the find places, the times, dating, sediments etc. blabla and even your genetics (see above). But modernity (Edit in distinguishable characteristic) is there at least 160.000y bp, now we have it 180.000 years ago and outside of Africa. And that is all there was to say. [snip] We can safely place gradual emergence of modernity to 250.000bp, [snip] ? And genetics support that, see the work above. [snip]
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Now. 250ky is in discussion since decades. Examples for early and transitional forms: Bodo, Ndutu Lake, Kabwe, Salé, Eyasi, Florisbad, Eliye Springs, Laetoli, and the ones you already mentioned. I am sure there is more but don't remember them all. You haven't done so. Edit: 160.000 is only the lower limit. Then just admit that your claim was false and everything is fine. Edit: this estimates the genetic divergence to 260-350ky bp and it has nice and long reference list. The picture is almost complete, isn't it ? http://science.sciencemag.org/content/early/2017/09/27/science.aao6266.full
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The some Hadrosaurids might have had quite a nice snorting organ, derived from air chambers in the skull. Of course, that's hypothetical. Example: http://www.ucmp.berkeley.edu/diapsids/ornithischia/hadrosauria.html
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idaltu is the name. And yes , its an early sapiens. Most. Your personal notion is not above the generally accepted opinion. This is pointless. It means nothing. There is a modern human maxilla outside of Africa 60.000years earlier than before. An outgrown individual died there. You are only casting meaningless fog to belittle other people's work. And you still owe me a proof for your claim the somebody mixed up mesolithic and middle palaeolithic stone tools. What's holding you back ?
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Any Train Simulator/model railroading geeks here?
Green Baron replied to Kerbinchaser's topic in The Lounge
Mixed, 3 to 6. But i don't model, i lack the patience. I just lay out tracks. Plan is to prepare a roll off slope to have something to watch and that makes a certain sound :-) But first the controller must run ... A car: Not even 5 seconds later. "Sorry bro, you'll have to find a different track ..." Maybe i better not roll that one off ?- 239 replies
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Impressive. And more so if she did that with an incisor :-) Molars can be identified by the cusps, flanks and ridges, which by no means belittles her performance ! Just telling ... Edit: and my sympathy for the loss of a friend.
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It's modern human. You don't accept it without actually discussing the description from the paper. Which is conclusive (the paper). That's all of the problem. People can tell between a Mercedes and Hyundai (i can't). Others between a modern human and a neandertal. By the teeth and a maxilla fragment. And a lot of comparison. I'd have problems with a rib fragment. But even a shaft fragment from a long bone could in ideal cases be identified. Some can, others can't. :-)
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Any Train Simulator/model railroading geeks here?
Green Baron replied to Kerbinchaser's topic in The Lounge
Thanks ! Seems to support my station (Lenz LZV 100) ! And udev recognizes it. Will continue tomorrow :-)- 239 replies
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If you say so. I need evidence. And the presented one is quite conclusive. And surely not the last word. Btw. your beloved but in my eyes not all encompassing genetics allow for a much older occurrence, depending on where you place the separation (370-520ky bp). But again, one brick in the wall, and i still don't see a problem. I had to attend a course. I hated it. Illogical. Yeuch. I can't say no, i can't say yes. So i say maybe. This is not about neandertals in Indonesia. It is about modern humans in the Levant. Yes, i totally lack your abstraction here :-) Outch. A lot of people would cold bloodedly kill you for that. I not. I am peaceful. Mostly. And i don't have a knife @hand. How do you get that link now ? Remember, we are talking about modern humans in the Levant 180ky earlier than now. They rot so quickly, don't they ? Yes. But what if the sample is clearly a neandertal, or a modern guy (or girl) ? Which one ? I don't exclude that categorically, but you have a chance here to surprise me ? Yes, sir ! Think about this again and again, and then about our division of the stone ages, local specialties and differences, development over time and ecology. Hullo ! Everybody reading this, that's definitely worth citing ! No joke. I don't know whom you mean with archaics, but if that's about differences between neandertals and modern guys, then i agree. I wouldn't say "trivial" because it takes some time and effort to work it out, maybe "gradual" ?
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Any Train Simulator/model railroading geeks here?
Green Baron replied to Kerbinchaser's topic in The Lounge
Hey guys conductors and drivers: i decided to lay something out anew (on the floor, carpet training so to say) when i realised that i do not have a windows pc any more. I see that there is Linux software for DCC control, like OpenDCC or JMRI. Is someone here running one of those, or a different one ? Any recommendation, avoidable traps etc. ? As soon as it runs i'll post a few photos :-)- 239 replies
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And that is point ! To survive in the Levant humans needed a different package, like clothing and portable fire to survive a frosty night. Not so in Sudan. And yes, that's an old hat. But here's the bone, maybe not a smoking gun, but a loaded one. We know that. If i were you i'd attack the stone tool ensemble ... *shrug* There is a stack of studies, including simple morphology. Suggested search terms: "neandertal modern human teeth morphologic identification". If you dare include German and French publications, as there sit a lot of specialists. A link would be nice, Wikipedia not accepted. But it leaves the sense and meaning of the paper above, which is about modern humans outside of their origin earlier than before. That sounds like a creation event and makes me shiver. ??? Your beloved genetics in honour, but they are only one tool of many. A mysterious group that may or may not have contributed must yet be found. I mean by bones and stone tools, the classic style, or they don't exist ;-) Be it as it may, modern humans in the Levant 180.000bp. Yay.
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This is plain nonsense a false claim ! https://www.nature.com/articles/546212a http://rstb.royalsocietypublishing.org/content/371/1698/20150237 Edit: it is an absolute common place that humans as hunters and gatherers, whatever species or subspecies they belonged to, were always on the move in out of where they were. Again, "out of Africa" is no single event. The simple thing here is to find evidences of when who was where. And who in this case is one with all traits a modern one and none of neandertals (go through them if you like) and it is determined to be 60.000 years earlier than before. That's all. No need to cast any fog.
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I don't argue with you over opinions that can't be proven or disproven. Genetics have failed us more than once, they are only one tiny tool, more important is the finding and its interpretation, in this case the bones, cave sediments, stone tool ensembles and dating by different methods and a wide range of comparisons and related work. Your mouthing over the colleagues that have contributed several decades of research and discussion to Anthropology feels somewhat strange ... i am not always content with everything but these guys are no idiots. And i do not know who you are. If you don't accept it no problem. But don't demand that others must share your opinion. If you can't distinguish between a modern human and a neandertal, no problem, I can. I maybe a bit out of practice, but like any serious man or woman, before i go out and make a fool out of myself i discuss the finding with colleagues, share opinions, have several specialist look over it, etc. The case is not taken out of the air, you know. But you already said that Nature magazine and its peer review is bunk. Maybe science mag is the same ?
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Sorry m8, my eyes fell close when you came to manifolds and the neolithic. And it has little to do with the paper that deals with the dating of a maxilla and teeth from cave in the Levant, 60.000 years older than previous finds of modern humans outside Africa, right at the side of those previous finds. Teeth from a modern human, a neandertal or an erectus are perfectly distinguishable, especially when they are so well preserved like the ones in the publication, there is no sign of traits of neandertal or earlier human forms. Read Chris Stringers comment for example. And, by the way, if you claim dates and pretend to cite others you should provide some links, and not just Wikipedia ;-) To say it clear and for everyone understandable: these are so far the earliest finds of anatomically modern humans outside Africa.
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The concept of colonization or foreigners is not applicable. Those were hunting or foraging groups wandering around just because it is nice here but it may be nicer elsewhere. The modern way of thinking "out of Africa" is exactly that. There were no waves or directed movements as frequently pictured but just wandering groups, and they went in and out of Africa, Europe, Asia, wherever. Erectuses left Africa >1.5 my (Dmanisi). It is just interesting to know when people had the ability to live long and prosper outside the climate of their origin, because they had to take that climate with them (clothing, fire, ...).
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@PB666, if you are expressing doubts as to the classification of the bones, for those who know a tooth is really tell tale. Especially when it comes to to the transitions between late Erectusses, Neandertals and early likes of us. I'd rather wait for an independent confirmation of the dates and further analysis of the sediment samples.
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Early modern humans may have left Africa for the first time ~60.000 years earlier than previously thought, placing it to ~180.000 years bp., if the dating is correct (1 of 4 methods (uranium series) gave a date of 70.000ybp). http://science.sciencemag.org/content/359/6374/456