Organize and Share your Electronics the way you want. Sign-Up for a free account now. It takes only 30 seconds!

How To Make a Barometer

How To Make a Barometer

A Barometer is used to measure the atmospheric pressure and is a tool to forecast the weather.
Cut the balloon. Put the balloon on the cup, fix the ruber band so the balloon does not slip off. Glue the bamboo stick (or straw) at the center of the baloon. If the stick is heavy and the can or cup flips over, put some water on it. Use the card board and tape to make it to stand vertically. After the glue is dry, use the cardboard to put some marks and measure the pressure. If the weather is cloudy or raining, put the middle mark above the stick. If the weather is sunny, put the middle mark below it.

After 20 minutes, the “needle” moved. Low pressure is associated with less stable weather patterns, while high pressure is associated with more stable weather patterns. To forecast weather with your barometer, it is important to watch the speed and direction of barometric change. On this case, the needle was going up, that means, the weather will improve.

How it works?

The air inside the cup have a different presure than the outside air, so it makes the balloon to bend outside or inside. If the atmospheric pressure is low, the pressure inside the cup will be higher and it pushes the balloon outside and the stick will point to a lower level.

When the atmospheric pressure is high, the pressure inside will be lower and the stick will point higher.

This is not a “professional” barometer but works fine, excellent for a science project or just for fun.

Visit Here for more.







 

More Articles to Read

App note: EPIC: Electro-Pyrotechnic Initiator Chip Resistor
App note: EPIC: Electro-Pyrotechnic Initiator Chip Resistor
App note: Noise analysis for high-speed op amps
App note: Noise analysis for high-speed op amps
Skill Sunday: Arrays
Skill Sunday: Arrays
App note: Infrared remote control implementation with MSP430FR4xx
App note: Infrared remote control implementation with MSP430FR4xx
Gesture Controlled Smart Home
Gesture Controlled Smart Home
Design for a Wideband, Differential Transimpedance DAC Output
Design for a Wideband, Differential Transimpedance DAC Output
Wrist thrusters let you fly through the water effortlessly
Wrist thrusters let you fly through the water effortlessly
Bertan/Spellman 225-20R HV power supply teardown
Bertan/Spellman 225-20R HV power supply teardown
Blinking Christmas Lights
Blinking Christmas Lights
Adjusting clock with alarm, hygrometer & thermometer on 1.8″ ST7735 display
Adjusting clock with alarm, hygrometer & thermometer on 1.8″ ST7735 display
Adding an “extra sense” with rangefinders
Adding an “extra sense” with rangefinders
This wireless game controller looks like a rug
This wireless game controller looks like a rug
How to run your ESP8266 for years on a battery
How to run your ESP8266 for years on a battery
Calibration of a 3-Phase Energy Meter Board on the ADE7754
Calibration of a 3-Phase Energy Meter Board on the ADE7754
Making beats on a tiny Arduino DJ controller
Making beats on a tiny Arduino DJ controller
Qinsi-QS5100 Sn63Pb37 solder profile
Qinsi-QS5100 Sn63Pb37 solder profile
Water Detection System
Water Detection System
Professional Hi-Fi 15W Tube Amplifier circuit
Professional Hi-Fi 15W Tube Amplifier circuit
This Arduino machine will judge how sick your ollies are
This Arduino machine will judge how sick your ollies are
Turn an old payphone into a boombox for ’90s hits
Turn an old payphone into a boombox for ’90s hits

Top


Shares