Spectrum Tubes Deuterium, glass tubes approximately 10-1/4in (260mm) long, central capillary portion approximately 3-1/2in to 4in (90-100mm) long with electrodes sealed at both ends and connected to lead wires protected by metal caps.
Fun House Mirror is a high grade polyester sheet with a vacuum deposited silver metal surface. The mirror is 0.8 mm thick and 84 x 56 inches in surface area ; Comes rolled into 1.5in tube, and will unroll flat. Size flat is 135 x 210cm.
Light Guide Demonstrator, S Shaped Bar. 220mm X 20mm X 20mm, For Use With Ray Box, 220mm Long, Bottom Of Bar Is White To Aid Visibility, It Helps Students To Understand The Principles Of Optical Communications. The Bottom Of The Bar Is White To Aid Visibility.
vertically-aligned set LED, easy and dramatic demonstration of the relationship between the color and wavelength of light, spectral range of each LED can be investigated with spectrometer, or just viewed for comparisons with each other
Ray Box Comes With Single And Triple Slit Plate, A Ventilated Lamp House Having An Open Front With Extended Sides Finned Externally For Heat Dissipation And Vertical Internal Grooves To Accommodate A Slit Plate And Cylindrical Lens. It Has A Light Source Comprising 12 Volts, 21 Watts Lamps