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#196
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Was: Moss/Lichen on roof, now we are into pollution.
On Fri, 16 Jan 2004 14:23:38 +0000 (UTC), "Franz Heymann"
wrote: "The Natural Philosopher" wrote in message ... Franz Heymann wrote: In particular, all the material which is said to be difficult to store (spuriously so) can be transmuted into short lived radioactive materials. ( Stuff which is typically rendered safe within days or less). The suggestion was originally made a few years ago by a Nobel prize winning physicist, Carlo Rubbia and has been analysed in great detail by a group of high energy particle physicists, The process has been shown to be entirely feasible. I would be intensely interested in any material on the web that you could direct my attention to, concerning this. I don't know if it is anywhere on the web. It has been written up as Laboratory Reports, and in the international professional physics journals. I will hunt to see if I find anything on the net. I was told it was offered to the French govt. and an Italian company(ies) was set up to exploit it. If it is true, it needs serious evaluation. It has been evaluated seriously in the physics community. What you aretalking about is essentially ';sterilisation' of long lived isotopes by blasting them in and around a recator into presumably somewhat 'hotter' but less enduring isotopes, that could be stuck somewhere for ten years, and then be 'cold' enough to dispose of in more normal ways? Very roughly, yes. But I am talking of stashing the stuff for weeks or months, not decades. in the compost heap (desperately trying to get this OT) -- Martin |
#197
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Was: Moss/Lichen on roof, now we are into pollution.
"Franz Heymann" wrote in message ... "The Natural Philosopher" wrote in message ... [snip] I would be intensely interested in any material on the web that you could direct my attention to, concerning this. I have now had a quick look with Google, using the search terms - Rubbia radioactive waste - and found a fair selection of papers. Researh on this process is going on in Holland and in Russia. (And probably elsewhere as well) The main motivation for it was originally that it would be a way of getting rid of the plutomium, and hence eliminate the possibility of that material getting into the hands of potential troublemakers. [snip] Franz |
#198
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Was: Moss/Lichen on roof, now we are into pollution.
On Fri, 16 Jan 2004 14:23:38 +0000 (UTC), "Franz Heymann"
wrote: "The Natural Philosopher" wrote in message ... Franz Heymann wrote: In particular, all the material which is said to be difficult to store (spuriously so) can be transmuted into short lived radioactive materials. ( Stuff which is typically rendered safe within days or less). The suggestion was originally made a few years ago by a Nobel prize winning physicist, Carlo Rubbia and has been analysed in great detail by a group of high energy particle physicists, The process has been shown to be entirely feasible. I would be intensely interested in any material on the web that you could direct my attention to, concerning this. I don't know if it is anywhere on the web. It has been written up as Laboratory Reports, and in the international professional physics journals. I will hunt to see if I find anything on the net. I was told it was offered to the French govt. and an Italian company(ies) was set up to exploit it. If it is true, it needs serious evaluation. It has been evaluated seriously in the physics community. What you aretalking about is essentially ';sterilisation' of long lived isotopes by blasting them in and around a recator into presumably somewhat 'hotter' but less enduring isotopes, that could be stuck somewhere for ten years, and then be 'cold' enough to dispose of in more normal ways? Very roughly, yes. But I am talking of stashing the stuff for weeks or months, not decades. in the compost heap (desperately trying to get this OT) -- Martin |
#199
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Was: Moss/Lichen on roof, now we are into pollution.
"Franz Heymann" wrote in message ... "The Natural Philosopher" wrote in message ... [snip] I would be intensely interested in any material on the web that you could direct my attention to, concerning this. I have now had a quick look with Google, using the search terms - Rubbia radioactive waste - and found a fair selection of papers. Researh on this process is going on in Holland and in Russia. (And probably elsewhere as well) The main motivation for it was originally that it would be a way of getting rid of the plutomium, and hence eliminate the possibility of that material getting into the hands of potential troublemakers. [snip] Franz |
#200
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Was: Moss/Lichen on roof, now we are into pollution.
On Fri, 16 Jan 2004 19:56:14 +0000 (UTC), "Franz Heymann"
wrote: "Franz Heymann" wrote in message ... "The Natural Philosopher" wrote in message ... [snip] I would be intensely interested in any material on the web that you could direct my attention to, concerning this. I have now had a quick look with Google, using the search terms - Rubbia radioactive waste - and found a fair selection of papers. Researh on this process is going on in Holland and in Russia. (And probably elsewhere as well) The main motivation for it was originally that it would be a way of getting rid of the plutomium, and hence eliminate the possibility of that material getting into the hands of potential troublemakers. Too late the USA beat you to it :-) -- Martin |
#201
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Was: Moss/Lichen on roof, now we are into pollution.
On Fri, 16 Jan 2004 19:56:14 +0000 (UTC), "Franz Heymann"
wrote: "Franz Heymann" wrote in message ... "The Natural Philosopher" wrote in message ... [snip] I would be intensely interested in any material on the web that you could direct my attention to, concerning this. I have now had a quick look with Google, using the search terms - Rubbia radioactive waste - and found a fair selection of papers. Researh on this process is going on in Holland and in Russia. (And probably elsewhere as well) The main motivation for it was originally that it would be a way of getting rid of the plutomium, and hence eliminate the possibility of that material getting into the hands of potential troublemakers. Too late the USA beat you to it :-) -- Martin |
#202
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Was: Moss/Lichen on roof, now we are into pollution.
On Fri, 16 Jan 2004 19:56:14 +0000 (UTC), "Franz Heymann"
wrote: "Franz Heymann" wrote in message ... "The Natural Philosopher" wrote in message ... [snip] I would be intensely interested in any material on the web that you could direct my attention to, concerning this. I have now had a quick look with Google, using the search terms - Rubbia radioactive waste - and found a fair selection of papers. Researh on this process is going on in Holland and in Russia. (And probably elsewhere as well) The main motivation for it was originally that it would be a way of getting rid of the plutomium, and hence eliminate the possibility of that material getting into the hands of potential troublemakers. Too late the USA beat you to it :-) -- Martin |
#203
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Was: Moss/Lichen on roof, now we are into pollution.
"martin" wrote in message ... On Fri, 16 Jan 2004 14:23:38 +0000 (UTC), "Franz Heymann" wrote: "The Natural Philosopher" wrote in message ... Franz Heymann wrote: In particular, all the material which is said to be difficult to store (spuriously so) can be transmuted into short lived radioactive materials. ( Stuff which is typically rendered safe within days or less). The suggestion was originally made a few years ago by a Nobel prize winning physicist, Carlo Rubbia and has been analysed in great detail by a group of high energy particle physicists, The process has been shown to be entirely feasible. I would be intensely interested in any material on the web that you could direct my attention to, concerning this. I don't know if it is anywhere on the web. It has been written up as Laboratory Reports, and in the international professional physics journals. I will hunt to see if I find anything on the net. I was told it was offered to the French govt. and an Italian company(ies) was set up to exploit it. I did not know that. If that is right, I hope it is moving forward. The Italian particle physicists and engineers are second to none. If it is true, it needs serious evaluation. It has been evaluated seriously in the physics community. What you aretalking about is essentially ';sterilisation' of long lived isotopes by blasting them in and around a recator into presumably somewhat 'hotter' but less enduring isotopes, that could be stuck somewhere for ten years, and then be 'cold' enough to dispose of in more normal ways? Very roughly, yes. But I am talking of stashing the stuff for weeks or months, not decades. in the compost heap (desperately trying to get this OT) Saved by the gong. Franz |
#204
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Was: Moss/Lichen on roof, now we are into pollution.
"martin" wrote in message ... On Fri, 16 Jan 2004 19:56:14 +0000 (UTC), "Franz Heymann" wrote: "Franz Heymann" wrote in message ... "The Natural Philosopher" wrote in message ... [snip] I would be intensely interested in any material on the web that you could direct my attention to, concerning this. I have now had a quick look with Google, using the search terms - Rubbia radioactive waste - and found a fair selection of papers. Researh on this process is going on in Holland and in Russia. (And probably elsewhere as well) The main motivation for it was originally that it would be a way of getting rid of the plutomium, and hence eliminate the possibility of that material getting into the hands of potential troublemakers. Too late the USA beat you to it :-) Touche Franz |
#205
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Was: Moss/Lichen on roof, now we are into pollution.
On Sat, 17 Jan 2004 10:36:03 +0000 (UTC), "Franz Heymann"
wrote: "martin" wrote in message .. . On Fri, 16 Jan 2004 14:23:38 +0000 (UTC), "Franz Heymann" wrote: "The Natural Philosopher" wrote in message ... Franz Heymann wrote: In particular, all the material which is said to be difficult to store (spuriously so) can be transmuted into short lived radioactive materials. ( Stuff which is typically rendered safe within days or less). The suggestion was originally made a few years ago by a Nobel prize winning physicist, Carlo Rubbia and has been analysed in great detail by a group of high energy particle physicists, The process has been shown to be entirely feasible. I would be intensely interested in any material on the web that you could direct my attention to, concerning this. I don't know if it is anywhere on the web. It has been written up as Laboratory Reports, and in the international professional physics journals. I will hunt to see if I find anything on the net. I was told it was offered to the French govt. and an Italian company(ies) was set up to exploit it. I did not know that. If that is right, I hope it is moving forward. The Italian particle physicists and engineers are second to none. Yes that's true, says he remembering fission in a test tube in the Fermi Lab in Frascati :-) I think it's very old news, the guy who told me worked at Cern donkey's years ago, but I think after you were there :-) If it is true, it needs serious evaluation. It has been evaluated seriously in the physics community. What you aretalking about is essentially ';sterilisation' of long lived isotopes by blasting them in and around a recator into presumably somewhat 'hotter' but less enduring isotopes, that could be stuck somewhere for ten years, and then be 'cold' enough to dispose of in more normal ways? Very roughly, yes. But I am talking of stashing the stuff for weeks or months, not decades. in the compost heap (desperately trying to get this OT) Saved by the gong. Can you come back next week? -- Martin |
#206
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Was: Moss/Lichen on roof, now we are into pollution.
On Mon, 12 Jan 2004 22:52:06 +0000 (UTC), "Franz Heymann"
wrote: "IMM" wrote in message ... "Franz Heymann" wrote in message ... The UK is aiming for 25% of its power generation by wind. CHP Stirling boilers are also envisaged to fill gaps too. It would surprise me if they ever got that much wind power installed. Until the latest generation of wind farm. Dutch wind generators used more energy in their manufacture than they produced. -- Martin |
#207
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Was: Moss/Lichen on roof, now we are into pollution.
"RichardS" noaccess@invalid wrote in message ... There are two problems with elecric motor vehicles that would have to be overcome to make them viable. First problem would be that they really need some kind of backup power. If a conventional fuel vehicle (or indeed any fuel that can be quickly recharged) runs out of or low on fuel then it is a quick and simple job to put more in the tank. A small Stirling engine/generator running on liquid fuel or LPG could be onboard. This could cut in when the charge is low, when either parked or moving. A Stirling is far cleaner burning being external combustion. This is not a real probelm. Second problem is one of recharge logistics. Battery vehicles would represent a considerable advantage in towns and cities. Quiet and pollution free at the point of use. However, the majority of people living within large cities and towns do not have designated parking spaces, and most of it is on-street parking. You are allowed to move down a public highway, but not stop on it. Parking permits do not guarantee a parking place, they just prevent other people parking. Pavements would have to be dug up and publically accessible chargeing points installed to be able to recharge such a vehicle, along with a suitable payment mechanism. The streets were dug up to install comms cables, so tat is not a real problem. I can't see the LA taking too kindly to me stringing a cable across the pavement to my house! Even in areas with controlled parking zones there is no right to be able to park outside one's house, so the price of someone parking in "my" space, abandoning a car or even leaving a skip would be complete immobility for me. Visitors? Hmmm. I'd have a battery powered vehicle at a sensible price and with decent performance/range like a shot. But until these problems are solved, then it's not viable. The problems can be overcome. The fantastic power/weight of electric motors and eliminating heavy and power sapping transmission, combined with advances in batteries, make it viable to have an engine/electric hybrid. The current crop have the engine as No.1 power unit with the electric motor as backup. It would be the reverse, with the engine assisting, if necessary, and acting as backup power, if necessary, and generating power for the batteries. --- -- Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.558 / Virus Database: 350 - Release Date: 02/01/2004 |
#208
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Was: Moss/Lichen on roof, now we are into pollution.
"martin" wrote in message ... On Sat, 17 Jan 2004 10:36:03 +0000 (UTC), "Franz Heymann" wrote: "martin" wrote in message .. . On Fri, 16 Jan 2004 14:23:38 +0000 (UTC), "Franz Heymann" wrote: "The Natural Philosopher" wrote in message ... Franz Heymann wrote: In particular, all the material which is said to be difficult to store (spuriously so) can be transmuted into short lived radioactive materials. ( Stuff which is typically rendered safe within days or less). The suggestion was originally made a few years ago by a Nobel prize winning physicist, Carlo Rubbia and has been analysed in great detail by a group of high energy particle physicists, The process has been shown to be entirely feasible. I would be intensely interested in any material on the web that you could direct my attention to, concerning this. I don't know if it is anywhere on the web. It has been written up as Laboratory Reports, and in the international professional physics journals. I will hunt to see if I find anything on the net. I was told it was offered to the French govt. and an Italian company(ies) was set up to exploit it. I did not know that. If that is right, I hope it is moving forward. The Italian particle physicists and engineers are second to none. Yes that's true, says he remembering fission in a test tube in the Fermi Lab in Frascati :-) I think it's very old news, the guy who told me worked at Cern donkey's years ago, but I think after you were there :-) It shows how out of touch one becomes, living in thr Yorkshire Dales. If it is true, it needs serious evaluation. It has been evaluated seriously in the physics community. What you aretalking about is essentially ';sterilisation' of long lived isotopes by blasting them in and around a recator into presumably somewhat 'hotter' but less enduring isotopes, that could be stuck somewhere for ten years, and then be 'cold' enough to dispose of in more normal ways? Very roughly, yes. But I am talking of stashing the stuff for weeks or months, not decades. in the compost heap (desperately trying to get this OT) Saved by the gong. Can you come back next week? {:-)) Franz |
#209
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Was: Moss/Lichen on roof, now we are into pollution.
"IMM" wrote in message ... "RichardS" noaccess@invalid wrote in message ... "IMM" wrote in message ... I could use 400 squ foot of flat plate collector on the roof, twice the area, and produce the same volume of solar hot water as the Thermomax solar collectors which takes up half as much square footage. The area is "very" important in this instant. Is that clear? Yes, but efficiency is independent of that IMM. Thats tantamount to saying a 5oKw boiler is twice as efficient as a 25Jw one. It is not. Solar collectors produce hot water. Some produce more than others for the same area, hence more efficient for a given area. No. Efficiency is the ratio of converted power out to power in . The area doesn't come into it. In this case it does. Area is the most important factor as it is limited on a roof. Solar panel X can be more efficient (ratio of converted power out to power in) than panel Y. But panel X may take up four times the area of panel Y. It means eff all if the area is not taken into account. For a given area which is the most efficient? Area, area, area. If the efficiency of a panel is 60% per square ft then, on the assumption that you understand what physical dimensions and units are, the efficiency of 1 sq.ft is 60%, the efficiency of 2 sq.ft is 120% and so on. I suppose you realise now that you have hit on a method of producing perpetual motion. Let me ask a final question: Given that, as you say, the efficiency is 60% per sq foot, what will the efficiency of a set of panels covering 200 sq. ft be? Note, I am asking for the efficiency of the whole set, not the "efficiency per sq.ft", as you put it. I take it that we agree that the efficiency is the ratio between the power in the insolation and the power delivered to the heating system Franz. |
#210
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Was: Moss/Lichen on roof, now we are into pollution.
"IMM" wrote in message ... "The Natural Philosopher" wrote in message ... IMM wrote: "Franz Heymann" wrote in message ... "The Natural Philosopher" wrote in message ... Franz Heymann wrote: So with a large area of Thermolux you might get to 200% more easily than with other panels? Please, please understand that there is no such concept as "efficiency per square foot" in either engineering or in physics. Efficiency is usually simply the ratio between the output power and the input power of a system. Actually that is not totally so. Efficency is a term that can be applied to more things than power. For example, one could define the efficiency of a roof in terms of the amount of water that runs off versus the total amount that falls on it. One can define an efficient business as one that has the highest sales value, or margin value, per employee. Efficiency is a measure of the efficacy against a theoretically perfect system, That is the beginning of a circular argument. of something doing the job it is designed to do. As normally measured by how much it produces of the desired output versus how much input it needs. If we for example take solar energy, it is not menaingful to say that e.g. civering every roof in lonbdon with a .3% efficient solar panel is inefficient, if the cost of so doing would actually be less than building and running an equivalent power station over the same . timescales. One could argue that in terms of various resources one or the other is more efficient. The power station takes up less space, but uses more fossil fuel. The electric panel is inefficient in overall thermodynamic terms, but maybe more efficient in the actual use of sunlight, since we don't have to wait a couple of million years for the trees to turn back into oil...The power station has far less labour content involved, but perhaps uses more materials. uppose fo an instant that we cracked fusion power. Who cares about efficiency, since the actual waste products - helium and heat - are totally insignificant in a global context. At that point electcity would become the cheapest form of energy, subject to no taxes at all probably, and we would all be driving electric cars, and heating our houses electrically, immediately :-) Thanks for the homily. I agree that in general usage, "efficiecy" is bandied around with gay abandon. However, the discussion about solar panels was a scientific/engineering one. To talk about "efficiency per unit area" in such a context is pure nonsense. What balls! I reserve a part of a roof of 20ft x 10ft, 200 squ foot. I put in flat plate collectors, I get n volume of solar heated hot water on a certain isolation at a certain time of year. I put in the same 200 squ foot Thermomax solar collectors. I get n x 2 volume of hot water on the same isolation and certain time of year. For each squ foot of roof the Themomax is 100% more efficient. Is that clear? I could use 400 squ foot of flat plate collector on the roof, twice the area, and produce the same volume of solar hot water as the Thermomax solar collectors which takes up half as much square footage. The area is "very" important in this instant. Is that clear? Yes, but efficiency is independent of that IMM. Thats tantamount to saying a 5oKw boiler is twice as efficient as a 25Jw one. It is not. Solar collectors produce hot water. Some produce more than others for the same area, hence more efficient for a given area. No. Not more efficient for a given area. Just more efficient. The area is irrelevant. Some unkmeasured area of flat panel may produce 1 kW. The same area of Thremomax may produce 2 kW. The thermomax is therefore twice as efficient as the flat panel. The area you have used for doing the comparison is quite irrelevant. Franz |
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