Frederiksen
Coupled harmonic oscillators f. airtrack
Coupled harmonic oscillators f. airtrackCoupled harmonic oscillators allow harmonic oscillations to be studied on the air track.Up to 5 carts can be connected to study coupled harmonic oscillations or wave propagation.A single cart can be used with one or more springs in order to study a simple harmonic oscillation.
Crooke’s radiometer
Crooke’s radiometerThis radiometer can be used to demonstrate that radiation energy (e.g. heat) can be converted into movement energy, kinetic energy.
Current balance
Current balanceFor measuring the force between a current-carrying conductor and a magnetic field.
Current balance, angle-dependent
Current balance, angle-dependentFor measuring the force between a current-carrying conductor and a magnetic field relative to the angle between the current direction and the magnetic field.
Curved ball track for collisions in 2 dimensions
Curved ball track for collisions in 2 dimensionsFor impact tests in 2 dimensions.
Cylindrical magnet with bearing
Cylindrical magnet with bearingPowerful magnet with coloured poles.
Dark Field Condenser, NeoZoom/60
Dark Field Condenser, NeoZoom/60Unit: Pcs
Dasymeter
DasymeterFor demonstrating the buoyancy of air when placed in a vacuum.Hollow plastic ball suspended on a bar with an adjustable weight.
Decade resistor, 0 to 1 Mohm
Decade resistor, 0 to 1 MohmSturdy decade resistor with 7 decades.
Declination and inclination needle on rod
Declination and inclination needle on rodThis declination and inclination needle is a measuring instrument for examining the direction and polarization of magnetic fields.
Deflection of beta part. – Risø source
Deflection of beta part. – Risø sourceDemonstrate the deflection of beta particles using Risø’s beta source.*)
Density blocks, 6 x 3 sizes
Density blocks, 6 x 3 sizesThis box contains 18 density blocks, divided into three different volumes. Each volume size is available in six different materials: iron, plexiglass, aluminum, zinc, copper and brass.
Diamagnetic floating graphite
Diamagnetic floating graphitePyrolytic carbon is the material with the highest diamagnetic susceptibility at room temperature.
Dicot Stem model, small
Dicot Stem model, smallThe model shows the structure of a stem from a dicotyledonous plant. The vascular and spicate parts are marked in clear colours so that students can see the vascular system. The growth zone is shown in yellow-green and the dermis is in dark green, while non-functional wood is shown in light green.
Digital balance, 15 kg / 1 g
Digital balance, 15 kg / 1 gDigital scale in a slim design with a large weighing plate and an easy-to-read, 5-digit LCD display. The scale has a maximum capacity of 15 kg. and weighs with an accuracy of 1 g.
Digital microscope, USB, 5 MP
Digital microscope, USB, 5 MPA neat little microscope with 5 MP resolution and stand.Easy to use for examining small details and surfaces, and includes adjustable built-in LED illumination.When mounted in the stand, allows a slightly larger working distance, and less magnification.When holding it over a surface, you can use the focusing wheel to ensure sharp images at two different magnifications.Supplied with Windows and Mac compatible software.
Discharge tube, Ø 13 x 100 mm
Discharge tube, Ø 13 x 100 mmNeon lampIgnition voltage: 90 VSocket: festoon (large)
Distillation set, large
Distillation set, largeGlass construction kit for organic chemistry. The individual parts are with NS 19/26 and NS 24/29 grinding.

