What does barometer mean?
atmospheric pressure
Barometer, device used to measure atmospheric pressure. Because atmospheric pressure changes with distance above or below sea level, a barometer can also be used to measure altitude. In the mercury barometer, atmospheric pressure balances a column of mercury, the height of which can be precisely measured.
What is social barometer?
The social barometer is simply a questionnaire that is circulated anonymously through the company. If this barometer covers many themes, we talk about measuring “social climate”. In 2018, 59% of employees in companies say that their work is the source of regular stress.
What does good barometer mean?
A high reading on a barometer often indicates high pressure, which meteorologists interpret as good weather. A low reading on the barometer is often a precursor to bad weather patterns.
What does barometer mean in a sentence?
The definition of a barometer is a device that measures the pressure of the atmosphere as an aid to predicting weather. A device that shows the pressure of the air is an example of a barometer. The stock market is a barometer of business.
Who invented a simple barometer?
Evangelista Torricelli
History. Although Evangelista Torricelli is universally credited with inventing the barometer in 1643, historical documentation also suggests Gasparo Berti, an Italian mathematician and astronomer, unintentionally built a water barometer sometime between 1640 and 1643.
What is the formal definition of barometer?
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) 2 : something that indicates fluctuations (as in public opinion) housing sales and other economic barometers.
What is a barometer for Class 7?
Ans. A barometer is a scientific instrument used in meteorological calculation of the atmospheric pressure. A simple barometer consists of a long, mercury-filled glass tube (closed at one end, open at the other end), and turned upside down into a mercury container.
What is the purpose of barometer?
A barometer is a scientific instrument used to measure atmospheric pressure, also called barometric pressure. The atmosphere is the layers of air wrapped around the Earth. That air has a weight and presses against everything it touches as gravity pulls it to Earth. Barometers measure this pressure.