Try reading the response again. You are simply too stupid to understand the science even were it explained to you at a third grade level. But there is always Google if you want to know. But you don't. And can't.
Both you and FC have the same shortcomings when it comes to reading comprehension. Don't feel too bad about it.....I've noticed it's a very common problem among liberals. I'll dumb down the question as much as I can and see if I can get the answer from you Chicken Little types. The question was NOT when was the Thermometers invented! The question was NOT about the continued development and standardizing in the 17th & 18th centuries, (or the 1800s, 19th century) Now I want you to concentrate....concentrate........take a deep breath..... The question IS "How did all these people, all around the world, ready and willing to record the temps, with their "standardized" ( "C" or "F") thermometers calibrate them and keep them calibrated in the 17th or 18th or even the 19th centuries?? ....now read the question again .....and again if required.....think long and hard if needed,.... take another deep breath if you wish....... there's no time limit...... and attempt to answer the question. This is an open book question...your allowed to look it up, if you need to!!
And again, idiot, there is a thing called Google. I suggest that you start with this search wording...."calibration of mercury thermostats". You will find, because you are too stupid to know now, that it involves the temp of ice baths and boiling water. Don't expect us to teach you. It's an impossible task to do with any denier anyway.
I see!! So your claims are based on Professional and Amateur Meteorologist allegedly located ALL around the world in the 1800s with instruments to record the global temps to within 1/2 degree Celsius based on Ice water and the boiling point? First I find it hard to accept that sufficient numbers of locations sampled to make the "Global" clam in the 1800s or even late 1800s. Second, I'd like to know just how and where they got ICE in say... Havana Cuba, or Cartagena Colombia, what's the source of Ice in Mumbai, Cairo, Casablanca, Manila, Fiji, New Caledonia, Mexico City, Rio de Janerio, Singapore, or Sydney just to name a few major locations around the world, without ice makers or electricity in the late 1800s. As for the boiling point, that depends on where and when you're doing the boiling. In Denver, the boiling point is ~ 95 C. of course the boiling point is the temperature at which the vapor pressure of the liquid is equal to the pressure exerted on the liquid by the surrounding atmosphere. (you might try Google on that..) Each 500 foot increase in altitude causes a drop of ~ 1 degree in the boiling point. The Barometric pressure can change, even at sea level. The Standard Boiling Point has been defined by IUPAC (International Union of Pure and Applied Chemistry) since 1982 as the temperature at which boiling occurs under a pressure of 1 bar. (google that...) Therefore the boiling point can fluctuate. I agree that using Ice water (when available) and the boiling point to calibrate ones instruments is a good method to come close. However a few dozen, or a few hundred, or maybe even a few thousand people scattered around the globe in 1890, recording the temps with that technique of calibration so that present day AGW Chicken Little's can declare their possible end of the world (as we know it) oratory, based on an increase of 11 one thousandth of 1% in CO2, and with the alleged precision to declare an increase of 1/2 degree as the result, with undeniable certainty and representation to proclaim it as the "Global" condition. Well...... You call it denial!!! I call it a healthy dose of skepticism. It's what thinking people do. The source of the Nile discovered Aug. 1858 The United States Supreme Court legally declares the tomato to be a vegetable 1893 Mount Saint Elias, the second highest peak in the United States and Canada, is first ascended. 1897
Even a completely uncalibrated thermometer will accuratelyy show trends. Among a random sample of thermometers some may read high, but others read low, on average it balances out. Tree rings match the temp records. Ice cores match the temp records. Pollen records match the temp records. Etc etc, the above are just few factors involved that result in good confidence levels. If you spent more time reading about how they do it and less on stubborn ignorant skepticism you will be better off.
Chemist here. Info is correct. I live at 5,900 foot altitude. Boiling point here normally is 200.5 F. Must adjust cooking time for anything boiled/braised. Example... Penne cooking time on box instructions says, "11 minutes", but it takes 14 minutes at this altitude.
Translation: "Even if we can only rely on the averages of a random sample of thermometers..... Even if we have to match the tree rings......... and we're sure the pollen records agree..... we're sure that "Global" temps are up 1/2 degree and the end is near, AND it's all mans fault." Spoken like a true Chicken Little.
True. The cooking time from 200-212, then residual cooking from cooling... from 212-200 makes a bigger difference than most would suspect. Baking too. There is "high altitude" flour.