Partially or completely filled with water, the glass sphere becomes a magnifying lens. When held under water, magnifications are created. In the world of optics, you quickly understand how a magnifying glass is also a focal point or turns the world “upside down”.
Every modern camera is still a camera obscura. The principle of the "pinhole camera" has been known since "the ancient Greeks", for at least 2300 years. With the invention of glass lenses 400 years ago, the camera obscura became a practical tool for painters who wanted to draw the most accurate picture of nature possible. Ingenious scientists eventually turned them into "cameras".
With this experiment kit, you can build your own camera obscura, experiment with a glass lens, learn the old tricks of the inventors and how today's cameras work.
Discover various phenomenon of light and shadow, e. g. a cotton ball as moon or a glass pane as a"theatre mirror". You can see images upside down in the camera obscura or behind the lens of a magnifying glass. Under water, reductions are created in the glass sphere. And with the light conductor you can even guide the light of a tea-light around a corner. You can also experiment a lot with two mirrors, a bendable mirror and the mirror-sphere in the secret world of mirror images, distorted mirror images, reflected mirror images, distorted reflected mirror images...
