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
Ballistics Car with Remote Trigger, demonstrates the independence of vertical and horizontal motions. It consists of a four-wheeled cart carrying a vertical tube with a spring-loaded piston inside. The tube is loaded with a ball and the cart is set in motion