Winter is the season of thermometers. Weather forecasts are full of reports of the rising and falling of mercury in glass tubes, reported to be above or below the usual average.

The early thermoscopes basically consisted of a vertically oriented glass tube with a bulb at the top and a base suspended in a pool of liquid such as water, which ran up a length of the column.

Conclusion Thermometers have come a long way from simple glass tubes to high-tech digital and infrared devices. Today, we even have smart thermometers that connect to mobile apps, wearable sensors ...

He also purchased Croydon Thermometer Co. of Rochester, N.Y., and expanded his line from dial and cooking thermometers to glass tube thermometers.

A finished mercury-in-glass thermometer requires at least 25 intricate steps including blending the mercury bulb, crafting the neck of the tube and narrowing the throat.

Building a thermometer is a matter of precise technology—putting just the right amount of mercury into a specially designed glass tube, for instance—but determining which numbers to use on the ...

Beaker A glass container with a pouring lip. Used to hold, mix or heat substances. Balance Scales used to measure mass. Measuring cylinder A cylindrical container used to measure the volume of ...