Instrument for measuring the coldest night time?

Question

Does any1 know the anwser to this question?

Name the instrument which will record the coldest night time temperature

please anwser

thanks

Answer 1

aneroid barometer

A barometer's main use, however, is not to measure altitude, but to measure the actual changes in the pressure of air at a particular place. High and low pressure systems in the atmosphere move around the earth's surface, and the movements shown on the face of a barometer attached to the wall of your home indicate the changes of pressure as they occur directly above you. These changes, when they are considered together with wind, temperature, moisture and cloud indications, can be a great help in forecasting approaching weather.

Who invented it?
About 1645, an Italian mathematician named Torricelli discovered the principle of the barometer by using a long glass tube closed at one end, which he put upside down in an open container holding liquid. He found that the pressure of the air bearing down on the liquid in the container forced it up the tube, and the measurement of the various lengths of the column of liquid was therefore a means of expressing the changes in air pressure .In order to have a tube of manageable length, the heaviest of all liquids, mercury, was later used.

Today we have finely constructed mercurial barometers capable of giving very accurate readings. They are costly and they need special care in handling. For general use an easier though less precise means of measurement has been devised - the ANEROID BAROMETER (aneroid = without fluid).

Answer 2

notably stupid article. ninety% of our thermometers are in violation? How does he arise with that huge sort? How does that designate melting glaciers and taking flight ice packs, or taking part evidence from satellites? From NASA:"The meteorological twelve months, December 2007 by November 2008, became into the best twelve months because of the fact that 2000, in accordance to the Goddard Institute for area study diagnosis of floor air temperature measurements. It became into the 9th warmest twelve months in the era of instrumental measurements, which extends back to 1880. The 9 warmest years all take place in the 11-twelve months era 1998-2008." So confident, this twelve months became into cooler than whilst G. Bush took place of work (2001), yet it is not asserting lots. additionally, this twelve months the 11-twelve months image voltaic cycle is at a minimum (some million twelve months previous due), so assume even warmer temperatures for the subsequent ten years.

Answer 3

A "minimum and maximum" thermometer.
They have two branches of mercury and a little object in each branch which remains where the highest temperature pushed it on one branch and where the lowest temperature pushed it on the opposite branch. There is a small button to reset the two little objects to the surface of the mercury to restart a new checking period.
This is the simplest. Of course there are much more sophisticated electronic instruments, with paper charts, etc..

Answer 4

A recording thermometer