Today is

By: Ikedi Ani-okoye.

Materials for building a barometer

I'm fond of this project, because it can be done in any setting. Barometers are designed to be used indoors, so you do not need access to the outdoors. This simple tool is a wonderful way to observe and learn about changes in air pressure. Use your webcam or camcorder to keep track of weather changes.

Barometer - Measure Air Pressure

Materials:

• clear, straight-neck glass bottle (about 12 oz.)
• clear glass jar (about 18 oz.)
• food coloring
• rubber band
• straight pin
• pot with water for testing the idea
• notebook, pen or pencil
• (optional) webcam, camcorder

Making use of a barometer

Let's start with the barometer. The barometer is a very effective tool for measuring the feeding behavior of fish. The barometer is an instrument used to measure ambient atmospheric pressure. Don't worry, I'm going to simplify it for you and cut through all of the scientific jargon so we can get to what really matters, catching fish.

The measure of barometric atmospheric pressure can then be used to help predict the weather and more importantly for our purposes, the feeding behavior of fish. Haven't we all wondered why fish were so easy to catch yesterday, but today you can't even get a bite?

Barometer Device explained

A barometer is a device for measuring atmospheric pressure. The average atmospheric pressure at sea level is 1 atmosphere, which is the pressure that will support a column of mercury 760mm (29.92 inches) high, i.e., about 1Kg/cm2 (14.71 1b./in2 ).

This would correspond to the pressure exerted by a column of air about 5 miles (8 Km) high if its density were constant and equal to that at sea level.This explains why the barometric pressure on the top of a mountain is, say, 10,000 ft. (3000m) high, the column of air pressing down at the top is only about 3 miles (assuming constant density).

CONCLUSION

I have found, however, that many people allow their barometer to control the direction of their lives. When people feel too much pressure, internal or external, they often allow that pressure to steer their lives. This would include emotions such as fear and anger internally, and perhaps the need to people-please or be an over-achiever externally.