What is a Kaleidoscope?
Such marvellous objects, kaleidoscopes. The beauty of geometry caught inside a simple cardboard tube. But how is that? How exactly do kaleidoscopes work, and most importantly, where in Galway can you get one?
What is it Made of?
- Tube: Often made of cardboard, metal or wood.
- End Cap : One end of a tube is a cap covered with transparent plastic or frosted glass.
- Eyepiece: Or simply a small hole one the other side of the tube.
- Mirrors: 2 or 3 long mirrors placed at a 60° angle.
- Small Objects – Such as coloured glass, gemstones, or beads. These are placed inside the end cap.
How Does it Work?
Kaleidoscopes are simple but clever objects which provide a mesmerizing views from simple objects put together. Let’s discuss how it actually works:
- Light Enters – When you point the kaleidoscope toward a light, multiple things happen:
- Light enters through the coloured pieces.
- The mirrors reflect the image repeatedly.
- These mirrors face each other and they reflect the light back and forth multiple times.
2. Symmetry Forms – When you start turning the tube, you will have many variations of images, and beautiful symmetries created right before your eye. How come there is symmetry, you ask?
Well, because there are multiple mirrors involved, the reflection repeats the image multiple times. These reflections join together in a symmetrical pattern. Here is where we can highlight the wonders of the law of reflection: The angle light hits a mirror = the angle it reflects.
When and How?
- When: In 1816, David Brewster, a Scottish physicist and mathematician invented the first Kaleidoscope, according to sources. . He discovered the kaleidoscope while experimenting with light polarization and reflections using mirrors.
- How: David Brewster discovered the kaleidoscope while experimenting with light polarization and reflections using mirrors. His invention brought him a lot of fame, as there was a heavy demand for kaleidoscopes. In fact, his portrait was printed on cigar boxes.
Thank you, I hope you enjoyed the article. Please note, I carefully research the topic before publishing, however some facts could have changed since publishing this article, so I appreciate your understanding. All articles published are thoroughly researched and inspired by published books. The list of resources are published in every article. Please be kind, and have a nice day.
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