Broken Mercury Thermometer
stir_fryi SE Mich
14 years ago
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joed
14 years agostir_fryi SE Mich
14 years agoRelated Discussions
Maximum-minimum thermometers
Comments (12)I've been using the Taylor thermometer for a couple of weeks. Despite its flimsy appearance, it seems to be functioning well, as far as I can tell. When I've compared its readings to those listed for nearby weather stations, they agree within a degree or so, in a consistent direction (for example, my high and low are always about one degree cooler than those recorded at a station about 20 miles southeast). It seems sufficient for my purposes. Mark, I think your suspicions are right; quality control on the Taylor may be inferior to its earlier models, but in any case you got a bum lot. Another note: The site I mentioned says that among "analog" thermometers, it prefers mercury, as generally more accurate than spirit-based ones. Personally I'd never allow a column of mercury housed in a fragile glass column anywhere near my home or garden....See Moremercury / antique mirror
Comments (7)Mercury is a poison to vital organs. It is harmless unless it invades the body in some manner. The worst is breathing mecury vapor because this is a direct route to the bloodstream via the lungs. Most of us can escape the danger of contact on the hands by a small amount for a very short period provided you have enough skin oil to keep it out. But then, there is always a chance it may penetrate somewhere. A couple of centuries ago, mecury poisoning was an occupational hazard for hatters and gold ore processors. Think of the Mad Hatter in "Alice in Wonderland". This was not a made-up character; It was a true representation of a hatter who had been mercury poisoned. His brain had been ruined. Way back then, mercury was used to block hats. A hot piece of steamed felt was placed over a wood mold and mercury poured in. The weight of the mercury pulled the felt into the mold to form the bowl of a hat. Soon, the hatter would go 'mad' from brain damage. In the case of ore processing, the reduced and ground gold ore was treated with mercury to extract the gold. Gold is soluble in mercury. The mercury liquor is drained off and the next chore is ot separte the gold from the mecury which is difficult to do. This was doen by heating the mix. The mercury was boiled off leaving behind gold. This was done in a retort so that the mercury could be reovered and used again. The hazard was leaks. Any mercury vapor was dangerous. Old time gold prospectors sometimes accidently poisoned themselves with mercury when the used mercury to check for gold. One way to do this was to hollow out a potato, fill the center with the mercury liquor, bind the halves together and place it in a campfire. The next step was critical. You go away, wait for the fire to burn out and the ember to cool, and then return to check the chared potato, If your sample contained gold, there would be a small amount of gold inside the burned potato. Mercury does have a small vapor pressure at room temperature. Consult a handbook of Physics or Chemstry to find the amount. Precision reading of a mercury barometer requires a compemsation calculation of the mercury vapor above the mercury column. The error is small at room temperature, but measurable....See MoreStill using a mercury thermometer? Neat trick
Comments (11)Fantastic! I think the battery is getting weak in my 40 year old digital thermometer (it stopped beeping). My mercury thermometer was stuck at 100.5 (probably since I've had the digital one). I was getting a headache trying to shake it down. I just put the mercury thermometer (in it's case) in a sock, spun it around for a few seconds, and it dropped into the 90s....See Moremore on mercury in cfls -- sorta ot
Comments (11)Mercury absorbs through skin very slowly. The danger from playing with liquid mercury is almost nil, unless you are bathing in it. Same goes for ingesting it, surprisingly enough, and yet we worry about mercury in fish. Inhaling it, however, is the quickest way to a problem - precisely the issue with a broken bulb. What percentage of the folks who purchase these bulbs do you suppose have any idea how to dispose of them? Or how to clean up if one breaks? Should we have to go to the EPA website to learn proper disposal of a household product? What about those folks without computers? Talking about mercury from a power plant compared to mercury in my home is comparing apples to oranges. I haven't got a coal power plant within 500 miles. I do, however, have a very open floor plan that would make it impossible to close off a room for an hour prior to cleaning. Ridiculous. I am not an alarmist, nor do I generally worry about chemicals. But, I am not happy to be told by politicians (who know nothing about the chemicals they legislate) that I have to use something that I have determined is not good for my family. Where I live, there is no place for homeowners to take florescent bulbs. Put them in a plastic bag and they go to the regular landfill, or drive them 50 miles and then pay for the privilege of getting rid of them. If we bothered to take all the extra driving that every homeowner would have to do to properly dispose, those "energy savings" calculations would change drastically, not to mention the preponderance of plastic packaging. It's a classic case of knee-jerk political reaction. The ONLY people who will benefit from the legislation are the folks making the light bulbs....See Moremikie_gw
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