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Video instructions and help with filling out and completing Fill Form 2220 Forecast

Instructions and Help about Fill Form 2220 Forecast

Music in this video I'll be making a storm glass an eighteenth-century device that can supposedly predict the weather with its unique crystal formation brought about by subtle changes in air temperature the instructions for how this instrument is to be read for weather prediction are detailed in the video description below I'll leave it up to you to decide how well you believe it works regardless of function a storm glass is a very beautiful device and an excellent lesson in solubility as it relates to temperature the components of the liquid found in a storm glass consists of three solid chemicals dissolved in a solvent of ethanol and water to keep things simple the solvent I'll be using is 100 proof vodka which off the shelf is already add a 50/50 ratio of water to ethanol 300 milliliters is measured into a jar the solid chemicals required are camp for potassium nitrate and ammonium chloride camphor is the most unusual of the three with a strong smell like mint or menthol it's sold in these one ounce tablet packs often as a preventative for rust in toolboxes as the waxy chemical sublimates and can form a protective layer on steel the contents of one tablet pack weighing 28 grams is dropped into the pre measured solvent next is measured 10 grams of potassium nitrate which is roughly equal to a full teaspoon another 10 grams of ammonium chloride is the final ingredient dissolving the solids is done by lightly heating some water into which the jar of solution is placed the heat will increase solubility a lid can be set loosely on top during this time with some ice cubes above to distill any alcohol that might try to evaporate do not use a sealing ring or any...

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