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#16
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Power stats for Forage Harvesters
Gordon Couger writes
We also had a difficult time building the plow and getting it to work. There is more to one than there appears to be and modern methods couldn't do much to improve it either. The only thing we could do was use a wider point for a few days after a rain than they do. But the price of steel over there is such that the sweep is about 5 times as expensive as the point they use. The point they use is not that much different than the narrow chisel point on a chisel plow. It is just not reversible. This doesn't surprise me. It has had an extended development period already. Doubtless the point could be readily made from old truck springs. -- Oz This post is worth absolutely nothing and is probably fallacious. Note: soon (maybe already) only posts via despammed.com will be accepted. |
#17
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Power stats for Forage Harvesters
Oz wrote in message ... Dean Hoffman writes .. I think a human in good shape can put out about about 1/3 horsepower. Let's see, 150 divided by 3 equals 450 people equals 900 feet compacting the ground. 'Good shape'! I expect the average continuous output for a city dweller might be significantly less, probably more like 100W. That puts you up to 1500 people with 3000 feet. Hmm if each eats 1 kg grains a day then just feeding them for a year will cost you 600T! Do you think they would expect clothes and heating as well? Doesn't seem very efficient to me, but a heck of a good-sized hoeing gang. remember to add in the administration and motivation costs as well. overseers with whips don't come cheap :-)) -- Jim Webster "The pasture of stupidity is unwholesome to mankind" 'Abd-ar-Rahman b. Muhammad b. Khaldun al-Hadrami' -- Oz This post is worth absolutely nothing and is probably fallacious. Note: soon (maybe already) only posts via despammed.com will be accepted. |
#18
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Power stats for Forage Harvesters
Xref: 127.0.0.1 sci.agricultu57982
Jim Webster writes Oz wrote in message ... Dean Hoffman writes . I think a human in good shape can put out about about 1/3 horsepower. Let's see, 150 divided by 3 equals 450 people equals 900 feet compacting the ground. 'Good shape'! I expect the average continuous output for a city dweller might be significantly less, probably more like 100W. That puts you up to 1500 people with 3000 feet. Hmm if each eats 1 kg grains a day then just feeding them for a year will cost you 600T! Do you think they would expect clothes and heating as well? Doesn't seem very efficient to me, but a heck of a good-sized hoeing gang. remember to add in the administration and motivation costs as well. overseers with whips don't come cheap :-)) Dang it, you always see the downside ...... -- Oz This post is worth absolutely nothing and is probably fallacious. Note: soon (maybe already) only posts via despammed.com will be accepted. |
#19
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Power stats for Forage Harvesters
"Oz" wrote in message
... Jim Webster writes Oz wrote in message ... Dean Hoffman writes . I think a human in good shape can put out about about 1/3 horsepower. Let's see, 150 divided by 3 equals 450 people equals 900 feet compacting the ground. 'Good shape'! I expect the average continuous output for a city dweller might be significantly less, probably more like 100W. That puts you up to 1500 people with 3000 feet. Hmm if each eats 1 kg grains a day then just feeding them for a year will cost you 600T! Do you think they would expect clothes and heating as well? Doesn't seem very efficient to me, but a heck of a good-sized hoeing gang. remember to add in the administration and motivation costs as well. overseers with whips don't come cheap :-)) Dang it, you always see the downside ...... -- Oz This post is worth absolutely nothing and is probably fallacious. Note: soon (maybe already) only posts via despammed.com will be accepted. Don't give up - I'm sure there are plenty who would pay to get a chance with the whip (on either side, too). -- May glorious Shamash make his face to shine upon you Gilgamesh of Uruk (Include Enkidu in the subject line to avoid the spam trap) |
#20
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Power stats for Forage Harvesters
On 2/20/03 12:41 AM, in article , "Oz"
wrote: Mari Meron still about? Doubtless wizard baez still slums it occasionally. I don't remember either of those names at sci.physics. I think that's where I saw this puzzle. Take a circular pasture with grass growth even over the full area. Put a stake at the edge of the pasture with a rope on it. Tie a hungry critter on the other end. How long should the rope be so the critter can get to only 1/3 of the pasture? Express the length in relation to one of the circle's dimensions such as radius, diameter or circumference. Dean I don't know the answer. -----= Posted via Newsfeeds.Com, Uncensored Usenet News =----- http://www.newsfeeds.com - The #1 Newsgroup Service in the World! -----== Over 80,000 Newsgroups - 16 Different Servers! =----- |
#21
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Power stats for Forage Harvesters
"Dean Hoffman" wrote in message
... On 2/20/03 12:41 AM, in article , "Oz" wrote: Mari Meron still about? Doubtless wizard baez still slums it occasionally. I don't remember either of those names at sci.physics. I think that's where I saw this puzzle. Take a circular pasture with grass growth even over the full area. Put a stake at the edge of the pasture with a rope on it. Tie a hungry critter on the other end. How long should the rope be so the critter can get to only 1/3 of the pasture? Express the length in relation to one of the circle's dimensions such as radius, diameter or circumference. Dean I don't know the answer. -----= Posted via Newsfeeds.Com, Uncensored Usenet News =----- http://www.newsfeeds.com - The #1 Newsgroup Service in the World! -----== Over 80,000 Newsgroups - 16 Different Servers! =----- Area of pasture = 3.1471 * radius * radius. Radius for 1/3rd area = 1/(3^.5) full radius. We knew that back in Sumer in 3000 BC, but it looked more elegant in cuneiform. -- May glorious Shamash make his face to shine upon you Gilgamesh of Uruk (Include Enkidu in the subject line to avoid the spam trap) |
#22
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Power stats for Forage Harvesters
"Oz" wrote in message ... Gordon Couger writes We also had a difficult time building the plow and getting it to work. There is more to one than there appears to be and modern methods couldn't do much to improve it either. The only thing we could do was use a wider point for a few days after a rain than they do. But the price of steel over there is such that the sweep is about 5 times as expensive as the point they use. The point they use is not that much different than the narrow chisel point on a chisel plow. It is just not reversible. This doesn't surprise me. It has had an extended development period already. Doubtless the point could be readily made from old truck springs. They use anything they can find for steel. There has been a great deal of research done on steels for tillage tools and it still goes on. That is one place we can improve on over the guys that designed plows and tillage tools. They spent a lot longer observing them than we do now. They walked behind them all day every day and many of the resharpened them themselves and could try anything that they could imagine. The R&D done by an illiterate farmer that spends his life working with, walking behind and building tillage tools is better than a Ph.D. with teaching duties, committee meetings and papers to write. One of the openers on John Deere grain drills is well over 100 years old with no changes but ball bearings and better steels. On the observation side of things I know more about what happens to soil in high rainfall events than most hydrologist. I have been caught out in a lot more of them and seen the results of a lot more of them than most researchers. They didn't spend 20 years on a tractor seat doing custom plowing on all kinds of soils. Gordon |
#23
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Power stats for Forage Harvesters
Gordon Couger writes
One of the openers on John Deere grain drills is well over 100 years old with no changes but ball bearings and better steels. Good job you didn't post on uba as someone would likely chip in to say their drill was over 100 years old. Mind you shovel and hoe design is even earlier. -- Oz This post is worth absolutely nothing and is probably fallacious. Note: soon (maybe already) only posts via despammed.com will be accepted. |
#24
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Power stats for Forage Harvesters
Dean Hoffman wrote in message ... Where is Sumer? was rather than is. the home of what was probably the first civilisation, based on the two rivers of the Tigris and Euphrates, now southern Iraq. The Sumerians were the ones that the Babylonians copied. One city name that might ring a bell from sunday school is Ur. -- Jim Webster "The pasture of stupidity is unwholesome to mankind" 'Abd-ar-Rahman b. Muhammad b. Khaldun al-Hadrami' Dean -----= Posted via Newsfeeds.Com, Uncensored Usenet News =----- http://www.newsfeeds.com - The #1 Newsgroup Service in the World! -----== Over 80,000 Newsgroups - 16 Different Servers! =----- |
#25
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Power stats for Forage Harvesters
Dean Hoffman writes
I don't remember either of those names at sci.physics. I think that's where I saw this puzzle. Take a circular pasture with grass growth even over the full area. Put a stake at the edge of the pasture with a rope on it. Tie a hungry critter on the other end. How long should the rope be so the critter can get to only 1/3 of the pasture? Express the length in relation to one of the circle's dimensions such as radius, diameter or circumference. 1) Take the radius, r. That is the original length of the rope. Now we know from elementary geometry that area is pi*r^2, so for 1/3 area we need a radius of 1/(square root 3). 2) Take a right angled triangle of side r and hypotenuse 2r. Again this is elementary geometry, compass and straight edge stuff. You can use a 3:4:5 triangle for a 90deg if you like. The other side will be square root of 3r in length. Cut a length of string off at sqrt(3). 3) Divide the string into three equal parts by folding it (free ends at opposite ends). This will have length sqrt(3)/3 = 1/sqrt(3) which is what we want, so cut the string into three equal lengths. Each gives you the length you require for your string. Easy .... -- Oz This post is worth absolutely nothing and is probably fallacious. Note: soon (maybe already) only posts via despammed.com will be accepted. |
#26
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Power stats for Forage Harvesters
Jim Webster writes
Dean Hoffman wrote in message .. . Where is Sumer? was rather than is. the home of what was probably the first civilisation, based on the two rivers of the Tigris and Euphrates, now southern Iraq. The Sumerians were the ones that the Babylonians copied. One city name that might ring a bell from sunday school is Ur. weren't the akkadians even earlier? -- Oz This post is worth absolutely nothing and is probably fallacious. Note: soon (maybe already) only posts via despammed.com will be accepted. |
#27
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Power stats for Forage Harvesters
Oz wrote in message ... Jim Webster writes Dean Hoffman wrote in message .. . Where is Sumer? was rather than is. the home of what was probably the first civilisation, based on the two rivers of the Tigris and Euphrates, now southern Iraq. The Sumerians were the ones that the Babylonians copied. One city name that might ring a bell from sunday school is Ur. weren't the akkadians even earlier? nah, Sumer & Akkad, the Akkadians were the scruffy barbarians off the plains who came to gawp at the great cities and stayed to rule them. It was the Akkadians who built competing Sumerian city states into an Empire which may well have included all of modern Iraq and much of Syria, and may even have reached Turkey and the med (accounts vary.) The Akkadians had the sense to spot a good culture and stuck with it, continuing to use Sumerian writing, bureaucracy and similar, and indeed it is a bit tricky to spot who absorbed whom. -- Jim Webster "The pasture of stupidity is unwholesome to mankind" 'Abd-ar-Rahman b. Muhammad b. Khaldun al-Hadrami' -- Oz This post is worth absolutely nothing and is probably fallacious. Note: soon (maybe already) only posts via despammed.com will be accepted. |
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