telegraph (n.) 1794, “semaphor apparatus” (hence the Telegraph Hill in many cities), literally “that which writes at a distance,” from French télégraphe, from télé- “far” (from Greek tele-; see tele-) + -graphe (see -graphy).

combining form. variants: or tel- Definition of tele- (Entry 2 of 2) 1 : distant : at a distance : over a distance telegram. 2a : telegraph teletypewriter.

(Entry 1 of 2) 1 : an apparatus for communication at a distance by coded signals especially : an apparatus, system, or process for communication at a distance by electric transmission over wire. 2 : telegram.

1 : an instrument for determining the pressure of the atmosphere and hence for assisting in forecasting weather and for determining altitude (see altitude sense 1a)

Simple barometer – diagram An inverted glass tube is standing in the bath of mercury and air pressure is exerted on the surface of mercury. The pressure at the top of the mercury column is zero as there is a vacuum there. The height raised in glass tube is equivalent to the atmospheric pressure.

An altimeter is a device that measures altitude—a location’s distance above sea level. Most altimeters are barometric, meaning they measure altitude by calculating the location’s air pressure.

What is another word for barometer?

Antonyms of BAROMETER aberration, abnormality, deviation.

Synonyms. air pressure pressure atmospheric pressure.

: a simple instrument for showing changes in atmospheric pressure by the changing level of liquid in a spout connected with a closed reservoir broadly : barometer.

A storm glass is a sealed device made of clear glass that contains chemicals that are said to crystalize to in such a way to predict weather a couple days in advance. One to three days later, the observed weather should mimic the prediction from a couple days back. The actual inventor of the storm glass is unknown.

Description

1. If the liquid in the glass is clear, the weather will be bright and clear.
2. If the liquid is cloudy, the weather will be cloudy as well, perhaps with precipitation.
3. If there are small dots in the liquid, humid or foggy weather can be expected.
4. A cloudy glass with small stars indicates thunderstorms.

How to fill the weatherglass: Hold spout under tap and fill with a thin stream of water. The water level of the bottle itself should be approximately one inch (2.5cm) above the place where the spout joins the bottle. If used outdoors, fill with rubbing alcohol during winter, to avoid freezing.

The liquid in AcuRite Galileo Thermometers is 100% paraffin. The colored bulbs are filled with paraffin and 3.4% dye. The liquid is non-toxic. The dye inside colored bulbs may stain fabric.

Place it near a window or outer air and within a few hours the liquid inside your storm glass will begin to crystalize. Wollah, now you can enjoy this beautiful instrument! From now on, your storm glass should be more reactive to weather changes, provided that you have placed it in the right place.

water

(Physics) A barometer in which the changes of atmospheric pressure are indicated by the motion of a column of water instead of mercury. It requires a column of water about thirty-three feet in height.

The water should be about 1” up the spout of the Storm Glass. If the water is not at this level, fill the syringe with air and insert the filling tube back into the top of the water chamber. Do not turn the Storm Glass upside down for this procedure. Inject air into the chamber.