Kelvin McCloud, P.I.: Weather Detective
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Build a barometer

Tools help detectives measure the things around them.  After all, where would Sherlock be without his magnifying glass and chemicals?  Of course, as Poirot reminds us, we all need our "little gray cells" as well!

So what instrument is most important to a weather detective?  There are so many wonderful ways to observe the weather around us, but arguably the most important is the barometer.

Barometers have a long history.  Since the 1600s, people have been using them to measure how much air is above them - the atmospheric pressure.  Pressure may not sound very important, but observations of how the pressure is changing can tell us a lot about what sort of weather we should expect in the future.  Modern, store-bought barometers are much more accurate, and you can easily find pressure readings on weather websites, but building your own will help you to get a better feel for what's going on.  So let's get started!

Coming soon...
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