All Products
LED, 5 mm, 20 mA, red
LED, 5 mm, 20 mA, redIncluded in 655000 Breadboard electronics set Unit: 100 pcs.
Leidenfrost dish
Leidenfrost dishDish made of steel. The dish is heated to several hundred degrees Celsius and a few drops of water are added.
Lens (75 mm)
Lens (75 mm)Replacement 75 mm lens for the Introductory Optics System (OS-8500).
Lens and aperture holder
Lens and aperture holderHolder for loose Ø 50 mm lenses and 50 x 50 mm apertures.
Lens Holder Set
Lens Holder SetMount 50 mm diameter lenses, mirrors, etc. into the empty lens holder and secure with retaining rings. Includes 2 lens holders.
Lens paper
Lens paperUnit: 500 pcs.
Lens Replacement Set
Lens Replacement SetReplacement lens set for the Human Eye Model (OS-8477).
Lenses in holder on rod, + 300 mm
Lenses in holder on rod, + 300 mmLenses mounted in a rectangular shielding sheet (100 x 100 mm) with printed focal length. Fitted with a Ø 10 mm steel rod for use with an optical bench.
Lenses in holder with base, – 200 mm
Lenses in holder with base, – 200 mmØ 40 mm lenses mounted in a shielding plate, 80 x120 mm, with a heavy, stable metal base. Focal length engraved on the plate.
Lenses in holder with base, + 200 mm
Lenses in holder with base, + 200 mmØ 40 mm lenses mounted in a shielding plate, 80 x120 mm, with a heavy, stable metal base. Focal length engraved on the plate.
Lenz’s Law kit, U-profile
Lenz’s Law kit, U-profileLenz’s Law is demonstrated in this apparatus by allowing a magnet to roll down a nearly vertical aluminium U-profile.
Lenz’s Law Demonstrator
Lenz’s Law DemonstratorProvides a convenient method of demonstrating Lenz’s Law.
Leslie’s Cube – Thermal Radiation Cube
Leslie’s Cube – Thermal Radiation CubeDemonstrate thermal radiation from four different surfaces. The aluminium plate heats to a uniform temperature of approximately 70°C or 100°C, depending on the setting. The four surfaces (black, white, silver, and polished silver) have different thermal emissivities, causing them to radiate different amounts of radiation even though they are all the same temperature. The photo shows the Leslie’s Cube in visible light on the left and in the infrared on the right.
Leslie’s’ Radiation Plate
Leslie’s’ Radiation PlateThis apparatus allows the demonstration of the dramatic differences in radiated heat from various surfaces. Being electrically heated it is more convenient than some of the more conventional methods involving water or Bunsen flames.
Levers Kits
Levers KitsThe Levers kit contains five systems and each system will require a set of 10g slotted masses.
