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About Prime-Evil

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    Mostly etc
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    BScEng Mech
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    Back Forty
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  1. I would like to better understand the dust that seems to appear at the end of glaciation periods according to the record gleaned from core samples. What is the origin of this dust? I have some theories that it is volcanic and others that it is cosmic. I am wondering if it has more to due with weather, that at some point desert sand or dust from glacial till gets stirred up and deposited on top of the ice caps, which increases warming and thuse perhaps more melting and more stirring up of dust and a positive feedback cycle initiating or accellerating an interglacial period? Of course this dust ends up being buried under more snow and ice. I don't think this has much relevance to what's happening at this time, the beginning of a super interglacial period, except perhaps to better understand why dust appears to precede CO2 rise at the end of glacial periods. Any other thoughts on the dust found in ice core samples? http://en.wikipedia.org/wiki/Ice_core
  2. I'm a bit curious about this. As I understand it, if the Earth's crust rises in one place, it has to fall in other places. Also, the center of gravity and so forth has to remain more or less in place, or in balance. So as a mental exercice, if the antarctic icecap did all melt, lets look at this logical but not neccessarily chronological sequence: 1. Antarctic ice cap slides into sea and melts. 2. Sea levels rise, shifting center of gravity North. 3. Sea levels rise a little extra in North and a little less in South in response to shift in center of gravity. 4. Antarctic Crust rises some in response to loss of weight. 5. Equator tightens a bit under weight of extra water and in response to rising of antarctic, further increasing sea level rise closer to equator. 6. Changes in sesmic activity in response to shifts in pressure and contraction of crust at the equator and expansion of crust in Antarctic??? Not really sure. Just thinking out loud. I think you are right though in that there would be somewhat more sea level nearer the equator, and considerably less or even negative sea level rise nearer the Antarctic. As for the sesmic stuff I'm not sure as I think that stff gets really complicated. The other thing that gets weird is that if a mass of ice gets moving in a certain direction, like mostly towards Australia say, or mostly some other way, then wouldn't that change the Earths axis of rotation in some way, which might change our winters and summers in some way. Also if the distribution of heating and cooling of the Earths mantle changes that could change circulations within the mantle which might also change the Earths rotation and continental drifts and sesmic activity and so forth. Just as complicated as weather I should think, though a lot slower.
  3. Coffee does make you open-minded. I know this for a fact. But only if it is a Tim Horton's Extra-Large Double-Double.
  4. Could you theoretically have more than one temporal dimension? If so, I would like to call them Time, and Chime.
  5. When Adam was created did he already have all of those micro-organisms in his body and crawling around in his skin? How gross, in a very cool sort of way. Evolution and/or Creation, God is one sick puppy.
  6. OK I have a '92 Toyota Corrossion that is ready to pack it in and I have a replacement vehicle I am ready to switch the insurance to. Experiments? Here are somes ideas: 1. Replace engine with electric motor and batteries. 2. Replace engine with lawn mower and weed wacker engines. 3. Replace engine with bio-hybrid (2 squirrels and a chipmunk). 4. Add some canola oil, alcohol, and water to the gasoline. Here is what I am thinking. It is overpowered. I am a patient man. If I drive slow and am in no hurry to get up hills will I get more effciency if I have some water in the fuel? The alcohol is to help the water disolve evenly. The canola oil is to help protect the metal parts from corrosion and because I like the smell. Works in my lawn mower, sort of. Thoughts?
  7. It might be easiest to distill your own.
  8. Would I ever be able to do this thermal depolymerisation in my basement? That would be so cool. Is there anyway to include electricity in the process, like from surplus wind power when I don't need the electricity? If I used wind power for both electricity and transportation fuel then I could have a larger wind turbine, and store hydrogen and avoid having so many batteries. I'm thinking about some process combining hydrogen and sewage and other waste to produce heat plus some useful transportation fuel. The gas produced could be stored and burned in a cogen process to produce heat and electricity on windless days. The liquid fuel could be used for transportation. With two vehicles you could have a commuter running on gas (methane and hydrogen) and the other car running on liquid fuel. Bit of a pipe dream, but it is always fun to think of technologies that lend themselves to decentralization.
  9. If your kid really needs a time-out, this could be just the ticket. Also, if you don't quite have enough saved up for their college education, Or if you just want to take that vacation first.
  10. Anyhow, I live in a potato growing region and they seem to dump a lot of potatoes every no and then. Does it make sense to turn these potatoes into ethanol, or compost them back into the soil? Say I had my own potato field, say 1 acres, enough for 20,000 pounds/year. In addition say I had another acre of coppice for fuelwood at 1 cord/year. What if I ferment and distilled the poatoes into ethanol in my basement during the winter so that I could recover the heat for heating my house and hot water. Then used the ethanol to drive my car, and my tractor. Also, I would eat a lot of potatoes. Love potatoes. I could also do all my urininating in the potato fields. Not all in the same place of course. Would this make any sense? 20,000 pounds potatoes = 4,000 pounds dry = 32,000,000 BTU Add a cord of wood fuel = 2,000 pounds dry = 16,000,000 BTU Say I could convert 50% to ethanol and 50% to heat and hot water. 24,000,000 BTU ethanol ~ 1000 litres of ethanol fuel = 20,000 km/yr 24,000,000 BTU heat and hot water = 200 days @ 1500 watts of heat This would be an average production of 5 litres ethanol per day, using on average 100 pounds of potatoes and 10 pounds (dry) of wood fuel. The potatoes and wood fuel could be stored in the basement. Together they would take up a space of about an 8'x8'x8'. I'm not sure how much work this would entail. I'm think a wind turbine producing electricity and hydrogen fuel might be simpler. I could use passive solar to help with heat, and solar hot water in summer. Then the land would only be needed for growing trees and food. 10kw x 24h x 365d x 0.25 x 3412 BTU = 75,000,000 BTU 25,000,000 BTU for domestic electricity 25,000,000 BTU for hydrogen transportation fuel 25,000,000 BTU for battery losses and supplemental heating
  11. Canada is going to 5% Ethanol by 2010. Makes very little sense to me, like having orgies to promote safe sex. Sure it's fun... .
  12. Not enough information, BUT... Based on conservation of energy, the springy bumper car has the potential to go the farthest because all of the kinetic energy was transfered. What is not known is how much energy was transfer from the bumper to the car.
  13. Perhaps if one was 'uncoordinated with both hands', it might be so. Or perhaps if a person literally had two left hands, you might suspect a problem. I suspect that I am more likely to be brain damaged because I am so extremely right-handed. I even switch my knife to my right hand when I eat, and have a lazy left eye. Interestingly enough, I think I was just as fast at sailing on both tacks. Not at the same time of course. .
  14. Perhaps this was a trick question. Under certain conditions, like direct sunlight, the glass beaker will allow more heat to be transfered by radiation. In the case of a bunsen burner my money would be on the aluminum can, but under certain conditions, like if the flame was on the side instead of underneath, the glass beaker might win again. Depends on a lot of factors, including the temperature of the water, and the temperature and pressure of the air, assuming there is air.
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