All our modern cameras have one common ancestor - The Camera Obscura: the light of the outside world falls through a pinhole onto the opposite wall of a room and produces an upside-down picture. In the 16th century the camera obscura was greatly improved by an objective lens, which produced much brighter pictures.
Rugged, intricately printed cardboard kit with two unbreakable, highly polished stainless steel mirrors. This continuously adjustable periscope lifts the eye level by up to 40 cm. It even permits to look behind you and around corners. Great fun and educational too!
Size: 5.5 x 12.5 x 32(-50) cm
With this easy to build spectroscope you can examine the spectrum of any light source: glowing bodies (sun, incandescent light bulb), fluorescent lamps, etc. On the nano-meter scale you can read the wave length to 5 nm accuracy.
In the current hype for 3-D effects and movies it is easily forgotten that the basic principles for these have already been laid down 180 years ago by the English scientist Charles Wheatstone.
Alan Davies and Phill Jupitus try out upside down goggles - QI Series N Episode 8: Preview - BBC Two
These amazing Reversing Goggles allow you to view the world upside down! The plastic goggles hold two Dove prisms, which invert the image.
Available in: Ready to use or Kit form - Selection on Right
A fascinating gadget: wherever this black film is warmed up to 28°C it changes its colour to red. If the temperature rises above that, the colour changes to orange, yellow, green, blue, and purple. At 34°C it turns black again.
A very special photographic paper from the early days of photography. Just put objects or negatives on the paper and expose it to the sun light. The outlines of the objects will show up as a silhouette.
Pack of 20 sheets, 140 x 190 mm
A rainbow for indoors! This large crown glass prism projects beautiful spectral colours into your room.
Hang the prism in a south-west or south-east facing window. When the low standing sun shines through the prism, it projects fields of spectral colours sideways into the room. A slight spin of the prism makes them dance around beautifully.
Set of three files (each fine and medium), ideal to smooth and clean edges and burrs of our cardboard kits. Also suitable for wood and soft plastic.
A very special photographic paper from the early days of photography. Just put objects or negatives on the paper and expose it to the sun light. The outlines of the objects will show up as a silhouette.
Developing and fixation with tap water and without the need of a dark chamber. Made from non-poisonous & recycled paper.
Pack of 10 sheets, 215 x 280 mm nearly A4 size (which is 210x297mm)
