Frederiksen
Archimedes cylinder set
Archimedes cylinder setFor demonstrating Archimedes law.Consists of a plastic weight with an eye and a transparent plastic container with two nylon loops: The upper loop is for suspension from a dynamometer or a balance, while the weight hangs from the lower loop.The plastic weight is immersed in water and therefore subject to buoyancy equivalent to the weight of the displaced volume of liquid.The buoyancy is compensated for by filling the plastic container with water.The inner volume of the container equals the volume of the plastic weight.
Armature with plug
Armature with plugTo be mounted on an air track glider.This spare part is a part of the 195210 Electric launcher.
Atherosclerosis, Arteriosclerosis (model)
Atherosclerosis, Arteriosclerosis (model)The model shows the changes that occur in the blood vessels in connection with atherosclerosis. An arterial branch is opened, so that in the form of a longitudinal section you can see 4 different stages of atherosclerosis from a light coating to an almost completely blocked blood vessel. In addition, 2 cross-sections show a mild and a very severe atherosclerosis.
Atom model, vibrating
Atom model, vibratingThe vibrating atom model illustrates the movement of molecules and shows that they are only completely static at absolute zero (0 K).
Auxiliary Lens 0.5x, NeoZoom
Auxiliary Lens 0.5x, NeoZoomUnit: Pcs
Auxiliary Lens 2x, NeoZoom
Auxiliary Lens 2x, NeoZoomUnit: Pcs
Balance, Digital, 1000 g / 0.1 g
Balance, Digital, 1000 g / 0.1 gDigital scale with tare and counting function and weighing range from 0 to 1000 g and an accuracy of 0.1 g throughout the range. The scale has an easy-to-read display and is supplied with 2 AAA batteries.
Balance, Digital, 15 kg / 1 g
Balance, Digital, 15 kg / 1 gSlim design digital scale with a spacious weighing plate and easy-to-read LCD display that makes precision weighing a breeze. This scale is ideal for a variety of applications, especially in kitchens where it makes cooking, baking or making sweets and candies more efficient and accurate. The large weighing plate makes it easy to handle and weigh larger quantities of ingredients or materials.
Balancing bird
Balancing birdA nice little bird that, in addition to decorating, also piques curiosity. How can the bird keep its balance?
Ball track with loop
Ball track with loopBall with eye, steel, Ø 20 mm
Ball with eye, steel, Ø 20 mmSuited for use as a pendulum bob.Made of polished, hardened steel with an aluminium eyelet.
Bar magnets, moulded in plastic
Bar magnets, moulded in plasticSet of two. Dimensions: 80 x 22 x 10 mm
Bar magnets, small cylindrical
Bar magnets, small cylindricalSet of two plain alnico bar magnets.
Battery box for microphones
Battery box for microphonesThe battery box functions as a voltage supply for microphones and various sensors when used with equipment that does not provide a voltage for this purpose.Typical examples are connection of a microphone (248600 or 251570) to an oscilloscope or an AC voltmeter.
Battery tester
Battery testerA universal battery tester is a small and handy device used to quickly check whether a battery still has power. This model can test both 1.5 V batteries, which are typically used in remote controls, flashlights and laboratory equipment, and 9 V batteries, which are often used in devices with higher power consumption. The battery tester’s simple design makes it easy to use, and the reading gives a clear picture of the battery’s current condition.
Beta spectrum apparatus
Beta spectrum apparatusFor the familiar set-up using a variable magnetic field.Beta-source holder with a circular groove for the radiation and a notch for the Hall effect probe.
Block for 6 lenses
Block for 6 lensesBlack block with holes for six lenses or apertures on rods.

