AcuRite 00795A2 Galileo Thermometer with Glass Globe Barometer, Barometer Set, Glass/Wood

Product Information

Some of the technologies we use are necessary for critical functions like security and site integrity, account authentication, security and privacy preferences, internal site usage and maintenance data, and to make the site work correctly for browsing and transactions. Thermometer containing several glass vessels of varying density A Celsius Galilean thermometer in two degree gradations.

While it will not indicate exact barometric pressure in numerical values, it is still regarded as an accurate monitor of air pressure changes. Based on this principle, the colored glass spheres inside the glass Galileo thermometer have been precisely weighted so that they respond to temperature changes. Personalised advertising may be considered a “sale” or “sharing” of information under California and other state privacy laws, and you may have a right to opt out. Once the hand-blown bulbs have been sealed, their effective densities are adjusted using the metal tags hanging from beneath them.The Galileo thermometer, invented by astronomer Galileo Galilei, works mainly on the buoyancy principle. Most purchases from business sellers are protected by the Consumer Contract Regulations 2013 which give you the right to cancel the purchase within 14 days after the day you receive the item. The thermometer (both the actual glass thermometer and the holder) arrived immediately, great condition and was just as pictured.

The Galileo thermometer is certainly not the most precise instrument in the world but it is certainly clever. This fairly accurate instrument is based on the thermoscope invented by Galileo Galilei in the early 17th century.

IMPORTANT INFORMATION ABOUT THIS PRODUCT: Your sealed Galileo thermometer is filled with a common mineral-based, ozone friendly solvent (paraffin oil) to prevent bacterial growth. The thermometer consists of a glass tube filled with a clear liquid, in which colored glass spheres float. The process can become uncomfortable and special attention must be given to ensuring hygienic conditions. To enable personalised advertising (like interest-based ads), we may share your data with our marketing and advertising partners using cookies and other technologies. For example, many have a range of 60 °F (16 °C) to 100 °F (38 °C) and won't tell you the temperature if it's higher or lower than those values.

It works by shifting liquid to and from its curved spout in response to changes in the air pressure. When the outside temperature is quite cold, all of the spheres will float toward the top of the tube. The unit consists of an enclosed glass tube that is filled with an alcohol based liquid with a small expansion air gap. We are currently unable to deliver to EU addresses due to the high and unpredictable costs, customs charges, and courier handling fees. nbsp; Of the spheres that appear at the top half we take the lowest hanging one to be the relevant temperature.This model includes a 'storm bottle' type indicator of changes in barometric pressure - useful for forecasting the weather. You can tell the temperature by reading the medallion on the middle floating sphere, if there are clusters of spheres at the top and the bottom of the tube, or with a few other tricks, depending on the configuration of the spheres. Anne has a BS in Chemistry from the University of Wisconsin, Oshkosh, and an MA in Secondary Education and Teaching from Viterbo University.

This is just what I was looking for in my barn apartment in the woods :) Just wish the thermometer, barometer and hygrometer could measure outdoors rather than indoors.

If you have never used one like this as you rotate the thermometer between your fingers look between the black arrows toward the base and the silver line becomes visible. The 33cm TALL glass tube holds FIVE floating baubles each filled with colourful liquids of different densities, each bauble has a silver-coloured tag that indicates the temperature from 18°c to 26°, this fun weather station is a fun way of taking an accurate temperature reading in your home. Essentially, the Galileo thermometer operates on the principle of buoyancy, the phenomenon by which objects of greater density than their surroundings sink and less-dense ones float. The instrument now known as a Galileo thermometer was invented by a group of academics and technicians known as the Accademia del Cimento of Florence, [2] who included Galileo's pupil, Torricelli and Torricelli's pupil Viviani. Keep in mind that anyone can view public collections - they may also appear in recommendations and other places.