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#331
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In article ,
"tim..." wrote: thermometers are sealed units (I have no idea about barometers, but assume likewise) There may be sealed versions but the point about a mercury barometer is that it's influenced by atmospheric pressure and the most basic version is an open dish with a long tube immersed in it. I'd guess old versions are most likely to have mercury open to the atmosphere. Sam -- The University of Edinburgh is a charitable body, registered in Scotland, with registration number SC005336. |
#333
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tim... wrote:
"Roland Perry" wrote in message ... In message , at 10:25:58 on Tue, 19 Jul 2016, tim... remarked: It's every much the same sort of thing: banning a commodity because it's harmful/unethical or whatever. There is a mile of difference between unethical and harmful, especially when in normal use the item isn't harmful at all, it's only harmful if it's abused. Ivory hunting is harmful to elephants. I was referring to the mercury instrument (I thought that was bleeding obvious) The problem with mercury is that even if not "abused" (whatever that means) it has a tendency to get split, and when it does the tiny droplets run everywhere and are very difficult to clean up. thermometers are sealed units (I have no idea about barometers, but assume likewise) Barometers measure atmospheric pressure, so they have to be open to the atmosphere to do this. -- Jeremy Double |
#334
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![]() "Sam Wilson" wrote in message ... In article , "tim..." wrote: thermometers are sealed units (I have no idea about barometers, but assume likewise) There may be sealed versions but the point about a mercury barometer is that it's influenced by atmospheric pressure and the most basic version oh yes how silly of me :-( tim |
#335
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#336
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On 18/07/2016 20:18, Roland Perry wrote:
In message , at 18:30:37 on Mon, 18 Jul 2016, tim... remarked: It's every much the same sort of thing: banning a commodity because it's harmful/unethical or whatever. There is a mile of difference between unethical and harmful, especially when in normal use the item isn't harmful at all, it's only harmful if it's abused. Ivory hunting is harmful to elephants. Not if you get it from a walrus. -- Arthur Figgis Surrey, UK |
#337
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tim... wrote:
"Roland Perry" wrote in message ... The problem with mercury is that even if not "abused" (whatever that means) it has a tendency to get split, and when it does the tiny droplets run everywhere and are very difficult to clean up. thermometers are sealed units Until they get broken, like the one in my dad's greenhouse which I used to push the droplets around the wooden shelf with a long nail. (I have no idea about barometers, but assume likewise) The mercury column needs to be open to air pressure, but I guess there could be a sliding piston arrangement of some kind to achieve it. My dad has a large mercury-column barometer, which IIRC claims to be spillage-proof even if turned upside down accidentally during transport, so there must be a seal of some kind. Anna Noyd-Dryver |
#338
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In message , at
19:13:42 on Tue, 19 Jul 2016, Arthur Figgis remarked: Ivory hunting is harmful to elephants. Not if you get it from a walrus. "The time has come," the Walrus said, "To talk of many things: Of shoes--and ships--and sealing-wax-- Of cabbages--and kings-- And why the sea is boiling hot-- And whether pigs have wings." -- Roland Perry |
#339
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"JohnD" wrote in message ...
Forgetting about EFTA altogether and regressing to plain WTO arrangements really isn't a viable option either, for anyone with enough patience and interest see eg: http://www.bbc.co.uk/iplayer/episode...sury-committee http://www.bbc.co.uk/iplayer/episode...sury-committee ======================== I've refrained from commenting further in this thread because I think I've made my views abundantly clear already. But for anyone genuinely interested in the prospects, especially trade agreements etc, I would urge you to see the two Parliamentary committee videocasts I've linked to above. I think they'll only be on iPlayer for another week or two, so not too much time left. As far as I can judge, the panellists giving evidence in both sessions for chosen solely for their professional in-depth expertise and experience in relevant aspects of international law, trade negotiations and international agreements and seem as objective as one could ever hope for. There is no obvious sign that they're batting either for the Leave or Remain sides. Michael Dougan in particular (first session) seems to have a really detailed understanding of the legal aspects of the Realpolitik of post-Brexit solutions rather than the ideology. NB These are not gameshows or theatrical debates in the style of the Referendum debates, but 2-hour long in-depth sessions (but which you can obviously dip in and out of at will). But for anyone willing to spend the time watching, I think they'll prove quite revealing. |
#340
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In article , (JohnD)
wrote: "JohnD" wrote in message ... Forgetting about EFTA altogether and regressing to plain WTO arrangements really isn't a viable option either, for anyone with enough patience and interest see eg: http://www.bbc.co.uk/iplayer/episode...-treasury-comm ittee http://www.bbc.co.uk/iplayer/episode...-treasury-comm ittee ======================== I've refrained from commenting further in this thread because I think I've made my views abundantly clear already. But for anyone genuinely interested in the prospects, especially trade agreements etc, I would urge you to see the two Parliamentary committee videocasts I've linked to above. I think they'll only be on iPlayer for another week or two, so not too much time left. As far as I can judge, the panellists giving evidence in both sessions for chosen solely for their professional in-depth expertise and experience in relevant aspects of international law, trade negotiations and international agreements and seem as objective as one could ever hope for. There is no obvious sign that they're batting either for the Leave or Remain sides. Michael Dougan in particular (first session) seems to have a really detailed understanding of the legal aspects of the Realpolitik of post-Brexit solutions rather than the ideology. NB These are not gameshows or theatrical debates in the style of the Referendum debates, but 2-hour long in-depth sessions (but which you can obviously dip in and out of at will). But for anyone willing to spend the time watching, I think they'll prove quite revealing. Did they lead to written Select Committee reports? They would give a more permanent record. -- Colin Rosenstiel |
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