Frederiksen
Photocell unit for mounting on stand
Photocell unit for mounting on standFor pendulum period measurements, air track timing, measuring period of rotation etc. It connects to electronic counters of type 200250 or 200260 using the supplied cable with DIN plug. Made from impact-resistant plastic with threads for vertical and horizontal mounting using the supplied Ø 10 mm support post.
Photodetector
PhotodetectorThe photodetector can be used to demonstrate communication by laser light, fibre optic communication, plotting of interference patterns etc.
Photosynthesis lamp, LED, full spectrum, 20 W
Photosynthesis lamp, LED, full spectrum, 20 WThis full-spectrum LED light is designed for classroom plant experiments. It features two flexible arms with adjustable heads, a clamp for attaching to a table edge or windowsill, and a timer function that can be set to 3, 6, or 12 hours. The light spectrum mimics sunlight in the 380–800 nm range, and the brightness can be adjusted in ten levels. The light operates on 100–240 V and supports plant experiments all year round.
Physical pendulum/Bessel pendulum
Physical pendulum/Bessel pendulumThe physical pendulum is used to study moments of inertia and the motion of rigid bodies. The centre of gravity, pivot point and moment of inertia can be varied in innumerable ways. For calculation, Steiner’s theorem is useful, as well as a number of formulae for moments of inertia of the pendulum’s different components.
Pipette filler Peleus bulb
Pipette filler Peleus bulbPipette ball “Peleus ball”. Standard model. Made of heavy rubber without metal parts.
The ball is equipped with three valves for controlling suction and discharge from the pipettes.
Planetarium, Helios
Planetarium, HeliosHelios is a mechanical planetarium that models the Solar System with Mercury, Venus, Earth (with moon), Mars, Jupiter and Saturn in correct relative orbital speeds. The speed can be adjusted continuously – forwards and backwards – so that phenomena such as the retrograde motion of Mars can be clearly demonstrated. The removable dome shows the northern starry sky, and a separate 100 mm globe of the Earth is included for seasons, day and moon phases.
Planetarium, mini model
Planetarium, mini modelThe Planetarium mini model is an educational and fascinating representation of the solar system, where students can observe the movements of the planets and the Moon around the Sun.
Plant cell, 3B
Plant cell, 3BHigh-quality plant cell model magnified 0.5–1 million times and divided into two parts. The plant cell is made of flexible plastic and is painted so that the individual organelles and structures inside and outside the plant cell can be easily identified.
Plant cell, standard
Plant cell, standardPlant cell approx. Magnified 2000 times, shows the typical structure of a plant cell and its organelles.
Plant cells, 12 microslides
Plant cells, 12 microslidesSeries of 12 selected preparations of different plant cell types. Supplied in a preparation box
Plastic types set
Plastic types setThis set contains 4 different types of plastic materials: PE (polyethylene), PVC (polyvinyl chloride), PS (polystyrene) and PP (polypropylene).
Plate capacitor 15 cm, circular
Plate capacitor 15 cm, circularCircular plate capacitor made from aluminium sheet with insulated handle. Equipped with a socket for safety plugs.
Plate capacitor 22 cm, square
Plate capacitor 22 cm, squareSquare plate capacitor made from aluminium plate with bent-over edge, with a notch for mounting.
Plate electrode with notch, angled. Al
Plate electrode with notch, angled. AlElectrode Plates designed for mounting in Stationary Terminal no. 4350.00.
Plate electrode with notch, angled. Cu
Plate electrode with notch, angled. CuElectrode Plates designed for mounting in Stationary Terminal no. 4350.00.
Plate electrode with notch, angled. Zn
Plate electrode with notch, angled. ZnElectrode Plates designed for mounting in Stationary Terminal no. 4350.00.
Plate electrode, copper
Plate electrode, copperElectrode plate designed for mounting in electrode holder 4515.20. Used for voltaic cells.
Plate electrode, iron
Plate electrode, ironElectrode plate designed for mounting in electrode holder 4515.20. Used for voltaic cells.
Plate electrode, zinc
Plate electrode, zincElectrode plate designed for mounting in electrode holder 4515.20. Used for voltaic cells.
Plate holder
Plate holderPlate holder for screens and mirrors, made from polished stainless steel.
