Mercury light source, 20W low pressure discharge lamps for spectral work. Delivers approximately 100 lux at 20 cm with prominent lines at 434.7, 546.0, 577.0, and 579.1 nm as well as many faint lines.
KidWind Chipboard Sheet, stiff, easy to cut, lightweight, low cost, and recyclable material used to make simple wind turbine blades, Length: 12 in, Width: 3 in, Thickness: 1.5 mm
KidWind Balsa Blade Sheets, very lightweight and stiff, and it is perfect for making experimental wind turbine blades, for College, High School, and Middle School Science, Pk100
Steel Support Ring Stand with 3 Rings, Base 20 x 12.5 cm, 800 g, Rod 500 x 12 mm dia, Support rings 75 mm, Support rings 100 mm, Support rings 125 mm, Contains base, rod, and 3 retort rings for lab experiments
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