Sodium light source, 20W low pressure discharge lamps for spectral work. Delivers approximately 350 lux at 20 cm and more than 90% of the light is concentrated in the doublet at 588.9/589.5 nm. Faint lines of the mercury spectrum are also visible.
GHS Mini Pictogram Label Sheets and Rolls - Toxic, 3/4 In x 3/4 In 500/roll, Vinyl GHS labels stick to any kind of surface - be it flat or curved, White, Label has white background with red border and black graphics
Wheel Box, Junior Engineering, has assortment of wheels come in a handy divided utility case, Contains: mdf wheels, plastic dragter wheels, card disk wheels, super wheels, and dowel to be used as axles. There are 401 pcs in all.
KidWind Motor Mount Pack, secures a motor to the nacelle, Includes: Two blue plastic motor mounts, Mounting screws and nuts, Recommended for College and High School
Compound bar, Brass and Steel, Weight (lb): 41.0, Length (in):28.7, Width (in): 20.1, Height (in): 18.1, For demonstrating the differential expansion of two metals, Comprising a bar of Brass and Steel each 200 x 15 mm, riveted together