Frederiksen
Resistors on base, 20, 50, 100, 150 Ohm
Resistors on base, 20, 50, 100, 150 OhmFour precision resistors mounted with safety bushings. The resistors can be combined in series and parallel connection with ordinary safety wires in countless ways.
Retort stand base, A-shaped, 2.0 kg
Retort stand base, A-shaped, 2.0 kgA-shaped base, 2.0 kg
RNA model
RNA modelThis RNA model makes it easier to study the structure. The model contains 12 bases: 3 thymine (T), 3 adenine (A), 3 guanine (G) and 3 cytosine (C) in their respective colors. The side chains consist of deoxyribose (red) and phosphate (purple), which can also be separated.
Rock collection, igneous, 24 pieces, 5 x 4 cm
Rock collection, igneous, 24 pieces, 5 x 4 cmThe rock collection consists of 24 different igneous rocks, which are delivered in a practical wooden box. Each rock measures approximately 5 x 4 cm. The set includes a Danish guide, which can be downloaded online. This guide contains detailed descriptions of each rock, making it easy for you as a teacher to convey knowledge about geological processes and rock formation.
Rock collection, metamorphic, 24 pieces, approx. 5 x 4 cm
Rock collection, metamorphic, 24 pieces, approx. 5 x 4 cmThe stone collection contains 24 different metamorphic rocks, including types such as marble, slate and gneiss. Each stone measures approximately 5 x 4 cm and comes in a beautiful wooden box that ensures practical and safe storage. The box includes an overview of the contents, so you can easily identify each rock type. A Danish content list and instructions are available online, making it easy to integrate the collection into teaching.
Rock collection, oil rocks
Rock collection, oil rocksSet of 7 rocks central to petroleum geology (source, reservoir and seal/roof rocks). Includes folding magnifier. Contents: black shale, coal, basalt, shale, sandstone, limestone and chalk. Norwegian instructions included.
Rock collection, rocks/minerals
Rock collection, rocks/mineralsThis rock collection contains four central rock types – sandstone, limestone, granite and gneiss – and four minerals that are part of them: quartz, calcite, feldspar and mica.
Rock collection, sedimentary, 24 pieces, 5 x 4 cm
Rock collection, sedimentary, 24 pieces, 5 x 4 cmCollection of 24 sedimentary rocks in a wooden box; each piece approx. 5 × 4 cm. Contains, among other things, conglomerate, breccia, various sandstones/quartzites, marl, limestone types (nummulitic, oolitic, chalk, travertine), gypsum, clay, coal, jet, chert, etc.
Rocket car
Rocket car
Rocket, stomp model
Rocket, stomp modelFoot pump rockets are a set where rockets are launched by stepping on an air cushion. The harder you step, the higher the rocket flies, which can reach up to 20 meters. The rockets are equipped with a soft rubber cap so that they can land safely without damaging the surroundings. The set comes ready to use and contains 3 rockets, ramp, hose and air cushion.
Rod with sleeve
Rod with sleeveFor mounting timer 200500. Painted sleeve with stainless steel Ø 10 mm rod.
Rotatable mirror with indicator
Rotatable mirror with indicatorRotatable mirror mounted on a base. For use in a refraction vessel for observing the angles of incidence and reflection within a fluorescein solution.
Round electrode, aluminium
Round electrode, aluminiumThis round electrode will fit the electrode holders no. 4515.10 and 4515.20 and electrode connector no. 4513.00.
Round electrode, copper
Round electrode, copperThis round electrode will fit the electrode holders no. 4515.10 and 4515.20 and electrode connector no. 4513.00.
Round electrode, iron
Round electrode, ironThis round electrode will fit the electrode holders no. 4515.10 and 4515.20 and electrode connector no. 4513.00.
Round electrode, nickel
Round electrode, nickelRound electrode – NICKEL. Diameter 6-7 mm – suitable for electrode holder no. FR-451520, and electrode contact no. FR-451300. Fits in ordinary rubber plugs with a hole. Length: 150 mm
The nickel electrode is a round electrode with a diameter of 6–7 mm and a length of 150 mm. It fits into electrode holders and rubber plugs with a hole and is used as a conductive component in electrolysis and voltage experiments. Fits into standard rubber plugs with a hole. Length: 150 mm
Round electrode, tin
Round electrode, tinRound tin electrode for electrochemical experiments. It can be mounted in standard electrode holders and rubber plugs, making it easy to incorporate into varying experimental setups. Suitable for electrode holder no. FR-451510 and FR-451520, and electrode contact no. FR-451300. Fits in standard rubber plugs with a hole. Length: 150 mm
Round electrode, zinc
Round electrode, zincA zinc electrode with a diameter of 6–7 mm is a round rod made of zinc. It has a length of 150 mm and is designed to fit into standard rubber stoppers with a hole. The electrode is compatible with electrode holders no. FR-451510 and FR-451520 and electrode contact no. FR-451300, making it easy to incorporate into various experimental setups.
Rubbing rod, glass
Rubbing rod, glassFor producing an electrostatic charge by rubbing with fur etc.
