For many people, The kaleidoscope contains infinite hope. Every time it rotates, the image in the kaleidoscope changes; the image you see may be the first or last encounter. Make a kaleidoscope and imprint the beauty of the moment in your heart.
Materials required:
From left to right, from top to bottom:
1000P white jade cardboard packaging paper battery holder, 3 small light bulb slides (don’t doubt it, it’s a biological experiment The kind used) "translucent" beads (think) electrical tape (black) test tube, rubber stopper, matte film, transparent film production process: 1. Use electrical tape to stick the glass slides together (slides) The spacing is 0.2cm).
2. Load the three pieces The glass slide forms an equilateral triangle, and the top corners are also fixed with electrical tape.
3. Completely cover the surface of the trihedron composed of glass slides with electrical tape
Reminder: If you are not an electrician If the tape is completely covered, the situation shown on the left below will appear. Light is transmitted, but the reflected image cannot be seen clearly. Although it is covered with electrical tape (as shown on the right below), the black tape absorbs a lot of light, resulting in an inability to have as good a reflection effect as a real mirror (one side of the glass is silver-plated). However, if other colors of tape are used, it will easily show through. Light will interfere with imaging.
4. Cutting 1000P white jade Card, slightly cut the cut white jade card along the blue dotted line in the picture with a utility knife to facilitate bending later.
5. Then process two round holes into the white jade card. The specifications are as shown in the picture. It is recommended to use a compass knife for cutting.
6. Card the white jade along the Fold the previously drawn line to the back, and place the three-sided cover glass mirror as shown in the picture, aligning the bottom end and centering it on the left and right.
7. Put the beads in In the test tube, fill it about half the height of the tube, then fill the test tube with water, and insert a rubber stopper through it to make a hole.
ps: The purpose of understanding is Let the excess water drain out, otherwise the rubber plug cannot be inserted, and then seal the hole with Styrofoam glueJust come.
8. Seal the The test tube is inserted into the two round holes on the white jade card to create a temporary fixation effect. Use tape to fix the white jade card into a rectangular box shape.
Suggestion: Use Polyflor again Secure the lower four sides slightly with dragon glue.
9. Lengthen the white jade card Wrapping paper on all sides of square box
< /p>10. Cut a small square of 3.7×3.7 from the wrapping paper to make a viewing window. You can choose any shape of the hole on it. Just remember to cover the hole with transparent film and stick the viewing window away from the test tube. that side.
11. If you want to use natural light For the kaleidoscope, you only need to seal the opening on the side close to the test tube with matte film. Face the matte film end toward the sun and rotate the test tube (not the square tube). The observed scene will be as shown on the left.
12. If you want to make a light bulb version, please cover the outside of the test tube with several layers of matte film (about 3 layers to prevent the light bulb from being too strong and causing eye discomfort), and then install the bulb. You will be able to see a scene like sunlight shining on the glass ceiling. .
I personally recommend using tungsten wire Little light bulb, because it gives me a sense of warmth, whether in the palm of my hand or in my heart.
Principle:
A kaleidoscope uses a combination of "different angles" of mirrors inside the tube to create different "multiple images", so we can see ever-changing scenes. From the perspective of two mirrors with an angle of 90 degrees (as shown in the figure below), the object forms image A and image B with the mirror respectively, and is reflected again to form image C. The object is equidistant from image A and image B. If we make a circle with O as the center and the object distance as the radius, the object and its image will be exactly on the circle.
This picture is provided by teacher Pan Guanqi .
The kaleidoscope this time uses three mirrors of an equilateral triangle (in this case, the included angle is 60 degrees).
This picture is provided by teacher Pan Guanqi.
The patterns and beads on each angle have been reflected many times to form five images. The object above forms a hexagon. I have also made an isosceles triangle mirror with a vertex angle of 30 degrees before. After multiple reflections, it formed a dodecagon (30° 75° 75° isosceles triangle mirror. The effect is As shown on the right).
Interlude:
When I first started making a kaleidoscope, I struggled to find a suitable mirror or substitute. But I had to rush to make it and give it away. In the case of extreme anxiety,
I accidentally saw that the black screen of my tablet had a mirror-like effect, and the MRT train windows also had a similar phenomenon. So I tried to experiment with a glass slide and electrical tape. The result was unexpected and I successfully made a unique gift.
Before making a kaleidoscope, if you don’t know what the effect of the pattern will be, you can use a program to simulate it. This program can simulate the imaging between two mirrors at an angle of 45 degrees to 90 degrees. Program link click here.
(Text/K)
The materials used in this tutorial can be purchased at the [Ridangwu Farm] store.
