Frederiksen
Colour filter, foil, primary green
Colour filter, foil, primary greenTransparent colored foil in a roll of 50 x 122 cm.
Colour filter, foil, primary red
Colour filter, foil, primary redTransparent colored foil in a roll of 50 x 122 cm.
Colour filter, foil, yellow
Colour filter, foil, yellowTransparent colored foil in a roll of 50 x 122 cm
Colour wands
Colour wandsThree sets of 6 colored plastic plates for illustration of color mixing.
Combi rack for various test tubes
Combi rack for various test tubesThis combination rack is made of polypropylene (PP) and has four sides with different hole sizes, making it suitable for several types of tubes in the laboratory. The rack can accommodate 4 tubes of 50 mL (Ø29 mm), 12 tubes of 15 mL (Ø16 mm), 32 tubes of 1.5/2 mL (Ø11 mm) or mini test tubes of 10–12 x 75 mm, as well as 32 PCR tubes of 0.5/0.2 mL (Ø7.5 mm). The color may vary from the image.
Commutator for student coils
Commutator for student coilsUsed for experiments with DC motors and generators.
Commutator/collector contact spring
Commutator/collector contact springContact spring made from phosphor bronze.
Compact spectroscope
Compact spectroscopeHand-held spectroscope in a metal housing, which allows qualitative observation of the spectrum from spectral lamps and other light sources.
This robust spectroscope is of very high optical quality and requires no adjustment. An optical grating with 600 lines per mm and a prismatic optical system ensures sharp spectra without distorted colours.
Compact spectroscope, pocket size
Compact spectroscope, pocket sizeA cheaper alternative to the popular hand-held spectroscope TE313, where the price difference is due to a lower sharpness in the observation of e.g. spectral lines and that it is only 55 mm long.
Compass needle
Compass needleMagnetic steel needle with nickel-plated brass bearing. Requires base no. 341500.
Compass transparent, set of 12
Compass transparent, set of 12Useful in demonstrations of magnetic field strength & lines.
Compressed air
Compressed airUnit: Pcs
Concave/convex acrylic mirrors, small
Concave/convex acrylic mirrors, smallMirror-coated plastic sheet. Mirror coated on both sides and shaped like a hole mirror.
Conductor sphere
Conductor sphereUsed as a target for the sparks from the Van de Graaff generator.
The sphere’s mounting post has a socket that connects to the generator’s earthing socket.
Conical pendulum
Conical pendulumThe uniform circular motion of the conical pendulum allows the following to be investigated: centripetal force vs radius of orbit, centripetal force vs orbital period and determination of g. The disc moves almost without friction on its ball bearing, while the bob’s angle with the vertical is read on the graduated, balanced disc. The pendulum’s length can be varied using four interchangeable wires with hooks.
Control transformer
Control transformerUsed as a power supply for spectral lamps in connection with spectral lamp housing 283050 or 283065, and mercury lamps 286500 and 286000 fitted in holder 287000.
Convection chamber, air
Convection chamber, airThis convection chamber is designed for demonstrating convection processes in air. The simple, illustrative experiments help to clearly explain the principles of convection and facilitate discussion of how high and low pressure and winds arise.
Copper discs for voltaic pile 352200
Copper discs for voltaic pile 352200A model of the first galvanic battery
