Frederiksen
Solar collector, student model
Solar collector, student modelThis small solar collector is a simple and clear model that introduces the fundamental concepts. The solar thermal collector operates with a stationary amount of water that is heated when the rays of the sun hits a black aluminium absorber.
Solar System model
Solar System modelThree-dimensional model of our solar system with the 8 planets.
The model is suitable for giving students an understanding of size ratios, distances, colors and speed when the planets revolve around the Sun.
With the model, you can easily explain why some planets are only visible for part of the year.
Solar System, inflatable
Solar System, inflatableInflatable beachball models of the Sun, the planets, Pluto and the Moon – 11 celestial bodies in all.
Solar thermal collector, complete
Solar thermal collector, completeAn improved model of our plate solar thermal collector, for both qualitative and quantitative experiments.
Source holder for joint link
Source holder for joint linkUsing this source holder, a Risø source can be positioned precisely in the axis of rotation of the joint link.
Source holder with absorber plates
Source holder with absorber platesHolder for Risø sources with absorber plates for experiments with absorption of radioactive emissions.
Source holder without plates
Source holder without platesHolder for Risø sources without absorber plates or base.
Source holder, bench, simple, Risø src
Source holder, bench, simple, Risø srcSource holder for Risø sources*) for use with for 514100 Mounting bench or 514102 Rail for mounting bench. Simple model without option for rotating the source.
Spare balls for item no. 199010
Spare balls for item no. 199010Like 199000, this apparatus is used to demonstrate the principle of independence but with the option of a variable horizontal speed.
Specific gravity weights, same volume with hook
Specific gravity weights, same volume with hookSet of brass, iron & aluminum cylinders with hook.
Size: 32 x 20mm in diameter.
Specific heat cylinder, Aluminium, 100g
Specific heat cylinder, Aluminium, 100gAluminium, 100 g, Ø30×61 mm
Specific heat cylinders, Bismuth, 100 g
Specific heat cylinders, Bismuth, 100 gBismuth, 100 g, Ø26×26 mm
Specific heat cylinders, Bismuth, 200 g
Specific heat cylinders, Bismuth, 200 gBismuth, 200 g, Ø25×46 mm
Specific heat cylinders, Brass, 100 g
Specific heat cylinders, Brass, 100 gBrass, 100 g, Ø25×31 mm
Specific heat weights
Specific heat weightsSet of three specific heat weights consisting of: 272502 Aluminium 100 g 272501 Brass 200 g 272504 Bismuth 200 g
Spectral lamp holder with screw fitting
Spectral lamp holder with screw fitting
Spectral tube holder with power supply
Spectral tube holder with power supplyNewly developed for use with the well-known thin spectral tubes, making the use of these both easier and significantly more secure. The spectral pipes are mounted in insulated holders, provided with a contact electrode.
Speed of Light
Speed of LightVery short but powerful pulses of light are emitted from the box. When the light pulses hit the special retroflective foil of the reflector they are directed back towards the source – with no need for tedious adjustments. Via a beamsplitter, the light pulses finally hit a high speed photodiode, converting them into electric pulses to be displayed on an oscilloscope. A separate synchronization signal marks the time of pulse emission and constitutes a reference for timing the pulses.
