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Watch science come alive with these fascinating UV-sensitive beads that change colour when exposed to sunlight or ultraviolet (UV) light. Perfect for exploring the effects of solar energy and invisible UV radiation, these beads provide a simple, hands-on demonstration of how sunlight can cause chemi...

The UV Torch is a compact and powerful 3W LED ultraviolet flashlight ideal for classroom, laboratory, and practical use. Emitting a focused beam of UV light, it’s perfect for exploring the properties of ultraviolet radiation and how certain materials fluoresce under UV exposure.This torch is parti...

Diffraction Grating 500 lines/mm. The grating is created as a holograph and provides clear and bright diffraction patterns. The film is mounted in the form of a 35mm slide. It has no protection for the film.pdf Instruction Sheet

Photogram paper, also known as photosensitive paper, is a type of light-sensitive material used in the creation of photograms. A photogram is a photographic image made without the use of a camera or traditional negative. Instead, objects are placed directly onto the photosensitive paper, and then th...

Fill these semicircular cells with different liquids to observe their refractive properties. Great for showing total internal reflection and measuring angles.

Spare part, light focusing lens for the Hodson Light Box Cat. 43LB260.Mounts inside the Light Box and slides to adjust the rays. Older model Light Box uses a different design lens holder without the screw and knob to lock the slider.

Coated with aluminum in hemispherical plastic, the inside is a concave mirror and the outside is a convex mirror, and the difference in the image due to the viewed irregularities is clearly understood. In addition, it is a feature of this instrument that you can see a virtual image of your finger wh...

This 90 mm diameter refraction tank contains water and is equipped with a source that emits light linearly.By tilting the main body, the angle of incidence of light is changed and the reflection and refraction of light occurring at the boundary surface of the water and air can be observed. A linear...

Use the single slit, double slit and diffraction grating in this kit to investigate the diffraction of light. The width of the interference fringes can be observed and measured. The slit can be held at right angles using a dedicated slit holder. The light source is mounted on the base so that it emi...

This complete kit is ready to go!The slit and light source can be easily adjusted to the optical axis by using a dedicated holder, allowing the experiment to start quickly. Three single slits, three double slits and two diffraction gratings are cut into one sheet making it easier to change the condi...

This is the slit only for the 43LDIS set used to measure diffraction images using parallel rays with laser beamed images or slits.Material: glassSingle slit: slit width 0.01 / 0.02 / 0.05mmDouble slit: slit width 0.02mm, interval 0.04 / 0.07 / 0.22mmDiffraction lattice slit: width 0.01mm x 30 (0.02m...

This is the Slit & Laser Holder only for the Cat. 43LDIS Laser Diffraction & Interference Set.

This spectroscopic prism is ideal for group experiments at a reasonable price.Material: optical glassSize: 30 x 30x 30, 20mm Thickness(Also see Cat. 43POG5 for a set of 5 packed in a protective case.)(Ray box not included)

This spectroscopic prism is ideal for group experiments at a reasonable price. Pack of five in a protective case.Prism Specs:Material: optical glassSize: 30 x 30x 30, 20mm Thickness(Also see Cat. 43POG for single prism.)

A bright light source device for students with a linear LED (high brightness white). The light path can even be seen in bright classrooms. Switch from red to green to white light in the same unit.Light source: linear LED (high brightness white), syringe lens use, three slits (one to three switchable...

This Right-Angled Trapezoid translucid lens (smoke lens) allows clear observation of the light rays inside the lens.

This set consists of two circular polarisation filters mounted on Perspex with degrees marked around the circumference. The filters can be conveniently mounted into any of three positions on the stand (included) to facilitate rotation of either filter to demonstrate the polarisation effect. Handy an...

This robust hand-crank demonstrator shows that light consists of a number of colours. Colours disappear and the wheel appears to have turned white when spinning! At rest, the wheel consists of separate colours. Is this true when it’s in motion? Demonstrates that light consists of a number of colou...

Use these unique beads to demonstrate solar power to alter their colour. Pack of 250.Try spreading them out in a layer one-bead-thick and suddenly expose them to bright sunlight!(NOTE: These beads do not work with interior fluorescent lights or LED light.)

This complete set of Calorimeter Blocks (aluminium, iron, brass & copper) with ~12mm hole for an immersion heater. Includes an Immersion Heater with 10mm O.D. which inserts to a depth of ~75mm in the Calorimeter Block holes. Each block has another hole for a thermometer.Spare Immersion Heaters can b...

This electric calorimeter can be used to measure the potential heat capabilities of various liquids. The cover contains a mounted heating coil of about 2 to 3 ohms resistance with standard banana sockets for electrical connection. When connected to a 6-volt battery, the coil will raise the temperatu...

Joule's Calorimeter spare element is a small coil of 'Advance' resistance wire measuring 2 ohms. To be soldered to the tips of the 2x stems in the Cat. 43CJ Joule's insert.

The classic cast iron Bar Breaker is a device that demonstrates the unstoppable forces of expansion and contraction. A steel bar lies in a cast iron frame and a cast iron pin locks the bar in place. A gas burner is fitted into the cast base and heats the bar. As the bar expands, it tries to bend the...

Light Box Halogen Lamp Keeper only for Hodson Light Box Cat. No. 43LB260.