How to Make a Barometer
A Barometer is used to measure the atmospheric pressure and is a tool to forecast the weather.
What is a “Barometer” ?
Answer: An instrument used to measure atmospheric pressure. There are two main types: aneroid and mercury. The aneroid barometer makes use of a small sealed chamber connected to a pointer mechanism. Mercury barometers use a glass tube filled with mercury and inverted over a mercury-filled chamber. Normally, the atmosphere at sea level can support the column of mercury to 29.92 inches. An aneroid barometer is calibrated so that its pointer reads the pressure as inches of mercury, too.
Here is what I need:
1 Empty tuna can, cup or anything wide that can hold water.
1 12″ Baloon (Doesn’t matter if helium grade)
1 Rubber band
1 Any of this available: Chopstick, bambu stick or straw. Anything longer than 8″ work fine.
1 Piece of cardboard, marker or pen.
Glue (or tape) and Scissors.
Water
**WARNING*** - Rubber balloons, ruber bands and scissors are dangerous! I’m not kidding, you can hurt yourself if those items are not used properly. Read the disclaimer at the main page.
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