The above image is just an animated gif file. Click the above button or this link to launch this interactive activity.
| The barometric formula states that the pressure decreases exponentially when the altitude increases. The formula is a manifestation of the Boltzmann distribution. This model demonstrates this effect. A virtual pressure gauge is placed in the middle of the model container to measure the pressure. It can be raised or lowered. |
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The above image is just an animated gif file. Click the above button or this link to launch this interactive activity. |
| System requirements: You must have Java Version 5 or higher in order to run this program. Please go to java.com to get the latest Java software, if you are not sure. |
| Failed? Check out the FAQ for troubleshooting. |