This thermometer is magnificent creations that make the principle of relative density a functional reality. An accurate indoor thermometer encased in brilliant glass, the thermometer is the point at which art meets science and adds sparkle and focus to any setting. Each of the liquid-filled floats weighs grams more than the one above it in the cylinder to ensure a stately and orderly procession of ups and downs as the temperature changes. To accomplish this balancing, the tags on which the temperature is marked are attached by hand. The fluid in the floats and the cylinder has to be exactly the same density for the thermometer to function properly. This product has specifically weighted floating bubbles would predictable rise or sink in a liquid as the temperature of that liquid is changed. Simply read the tag on the lowest floating bubble to read the temperature.