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Think holograms are high-tech? Create the illusion of 3-D depth with Crayola® Gel Markers on Plexiglas. It’s amazing!
How do holograms work? A hologram is an image made by a special beam of light. Holograms appear to be 3-D, and the effect can be seen from all angles. Hungarian scientist Dennis Gabor invented the first hologram in 1947. Invite students to investigate holograms. Organize a variety of resources for students to use while researching this topic.
Once research is complete, ask students to make a 3-D image that looks like a hologram. Before beginning artwork, tell students it helps to understand how human eyes perceive space. When you look at a distant landscape, what do you notice? The colors seem dull, you see less detail, edges are not as sharp, and you see less contrast. Why? Because you are looking through the air, which has density. On overcast days, the effect is even more pronounced. This phenomenon is called atmospheric perspective.
Distribute Plexiglas to groups of students. To make a pseudo hologram, students need at least three pieces of Plexiglas (for the foreground, middle ground, and background). Ask a clerk at a frame shop or home center to cut the Plexiglas into equal sizes, at least as big as a large index card.
Draw a landscape scene. On the first sheet of Plexiglas, students use a Crayola Gel Marker to draw images that are far away. Landscapes may be best when this is first tried. Use colors that have a minimum amount of contrast, such as blue, gray, and white. Use a cotton swab to blend the edges of drawings so it has a fuzzy, far-away look.
On the second sheet of Plexiglas, students draw details that are still in the distance, but not as far away as before. Use slightly brighter colors, and blend them less. These objects should be slightly larger than the ones drawn before, because they are closer.
On the third sheet, students draw objects in the foreground. Use highly contrasting, bright colors. Don’t blend the edges. Make these objects the largest and brightest of all.
Assemble holograms. Roll out a thick base of white Crayola Model Magic. Press your Plexiglas into it, leaving a little space between each sheet. Air-dry overnight.
View the Pseudo Holograms from the front for a 3-D effect. WOW!
People around the world give thanks for their food. Celebrate a harvest of pineapples, pumpkins, or pomegranates-and sho
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