Endy0816

That we went through a period of adaption to a semi-aquatic environment. It is the question of whether our adaptions are specific to that environment which is the issue. If you make the case the descended larynx's suggest adaptation to a semi-aquatic environment and I bring out a male Red or Fallow deer, he makes for an effective counterpoint. I do have to admit some unavoidable bias. We have a score of accidental drownings every year in Florida. The media coverage at least is frequently concerned with cases involving young children. Can't really get away from the public safety campaign against it.

On a good day I can reach the bottom of the deep end. About the same as the family dog... As for why Fido doesn't take down that great horned beast that keeps swimming around in the jacuzzi... Well, I can only speculate that the risk of injury increases when more common tactics would fail to work. There's too many counterpoints IMO. You start looking at the actual history of water birth, infants with their non-descended larynx, other mammals with a descended larynx(ADH - Aquatic Deer Hypothesis), it all just looks really shaky. Possible, sure. Probable, I am not seeing it as such.

When I looked at I didn't see that it was the best explanation for these traits.

Sounds are normal. http://en.wikipedia.org/wiki/Hypnagogia#Sounds You were also likely feeling the effects of sleep paralysis. Creates a feedback issue. Your brain attempts some motion, but then receives word back that the muscles were unable to comply. Common to feel unease as a result. As to the rest, it is possible you were asleep without knowing it and/or sleep walking. Basically sleep is supposed to be a skeleton crew minimal activity mode. A balance between recuperation and still being able to respond to generalized threats to oneself. Can seem a bit weird when you become aware of everything going on.

Ramps would not have been that hard to work with. All you would need to do is walk down using a basic pulley to translate the force. Set it up in stages so you minimize the risk of a runaway block injuring/killing people. Could have been made functionally similar to a modern conveyor belt. In strictly geological terms can you provide evidence for geysers with the needed output? Also if they lifted the water again, then we are back to using muscle power. They could have filled buckets with sand just as well as water for that matter. If it was any distance then you are also talking about aqueducts to move the water along and we would see evidence of them as well especially since there is more than the one construction site to consider. Side note: We really can't rely on personal interpretations of ancient text. Humans are terrible about seeing what they want to see.

They would need some means of getting the water higher than the height to which they desired to move the blocks to. A geyser would be a very very slow method. Honestly I could see a suggestion of pumps or aqueducts as being far more plausible. Honestly, considering they obtained the wood for the boats and mortar, I can't see why they wouldn't have employed it as necessary in combination with sledges and lubrication. Maybe even use a simple carved stone pulley(fixed to ground) in the process. Would allow you to utilize gravity instead of fighting against it and make the work safer as well.

http://www.ebook2u.org/sf/Isaac24/27771.html At least we know it is a fan of Asimov.

@Overtone: A number of the countries playing are first world. In this case we really are the oddball and poverty level has nothing to do with it. I'm sure there are socioeconomic factors associated with fan mania. That is a human factor though not dependent on the sport. The global wealth distribution is off in terms of the US as compared with other countries. It has simply been equalizing. Rest of the world is not that bad off in terms of necessities so the midpoint promises to remain fairly rosy(particularly with modern technologies at the ready).

I really don't see how anyone is even vaguely surprised about the cultural shift underway in the US towards soccer. Pretty much everyone else in the World likes soccer, so lot of money available for advertising. We have a changing population dynamic. More opportunities for "Sports" Tourism with soccer than football, so stadiums/cities stand to make more money from a shift. A ton of force on one side and very little on the other.

I don't want to ever land on a secreted runway.

Kept meaning to do this. Six years in the Navy serving on Submarines. Got to drive it, that was cool. All kinds of nifty accidents which were not so cool. Got out after my contract was up. Went to college and received my degree. Enlisted in the National Guard(bullet better than accident). Have been doing that for a couple of years now. I'm primarily trained in mechanical theory(hydraulics, pneumatics, diesel, O2 generation, CO2 removal). Have a degree in IT(logic systems, networking, electronics). Programming mostly self taught, primarily focusing on online automation. Later trained on Satellite Signal communications. My Uncle Sam gave me a cool death ray to make up for taking away my 2 billion dollar toy. I'm mostly just good at remembering what I read. Most everything is a page away for me. Poor man's photographic memory. Makes it easy to research my own random projects and answer the questions of others. Pretty much me in a nutshell.

To find ideal efficiency your graph should look roughly like this: I don't know any better way to explain it. What you have is the very rough CO2 equivalent of a steam engine. Energy from Evaporation - Condensation has been around for a long while. Eyeballing it, your graph seems to be missing a pressure drop between B and C.

You would need to compress and cool the CO2 to cause it to form a liquid. Then to cause it to expand you will need a heat source and obviously decompression. Heat sink, heat source, equals Carnot cycle. To have it to also move the the piston you are increasing your demand on the environmental heat sink and heat source. In practical terms I would expect minimal useful work out of this setup.

Where does the energy for the initial pressure come from? R744 really isn't my favorite refrigerant anyways. R12 or R134a would likely serve you better IMO. CO2 should be left for dry ice systems, deposit free cleaning and possibly Mars exploration.

I think you could use ocean pressure to condense it. Bit extreme but could be done. More concerning is the lack of mention of an external energy source to evaporate it again. Looks like a perpetual motion attempt if I'm understanding it correctly. Could be wrong but what it appears to me as. For the most part the paper itself is readable. Still could use proofreading by someone local. Maybe they could help clarify the meaning as well if we are in fact misunderstanding it.

"He's good at quantum physics, just don't get him started on Schrödinger."