This 11x15" cloud chart is perfect for indoor and outdoor use! The laminated chart includes 20 colorful and coded photos on basic cloud formations. Reverse side includes additional weather information.
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A what? Radiometer is just a fancy name for this Solar Engine. It demonstrates the principles of energy conversion and shows how heat and mechanica...
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Student grade bulb thermomer. Ranges from -35 to 50 degress celcius and -30 to 120 degrees fahrenheit. Measured in 2 degree subdivisions. Do not ...
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Vortex action? Potential energy being converted to kinetic energy? Centrifugal force? If you’ve never seen the Tornado Tube® in action you may n...
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This spirit filled soil probe thermometer is suitable for measuring the temperature of soil and compost, ideal for the horticulturist ...
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Backpacker magazine's Predicting Weather brings you essential mind gear from the two most respected and reliable publishers of outdoor-related in...
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