HINT: This activity works best if using very carefully & evenly cut shapes for the pyramid construction. Dim the lights in the room and look through the side of the pyramid! What observations can you make?.Place your pyramid in the middle of your screen with the narrow end facing down. Use your tablet or smart phone to play one of the videos at.If needed, trim the narrow (bottom) end of your pyramid so it sits upright on a flat surface.Use transparent tape to attach the 4 sides together and make a pyramid.
Carefully cut out the four tetrahedron shapes. Use the Pyramid Projection Template to trace four tetrahedron shapes onto your overhead transparency sheet. How is this illusion similar to a real hologram? Identify the location of the ‘real’ image and the ‘virtual’ image in your display. Tablet or smart phone, and compatible videos such as: Pepper’s Ghost video Make observations and develop questions for further exploration.ġ–4 sheets of overhead transparency sheets Real holograms can be seen without the need for special lenses, screens or other props.ĭescribe the locations of the real image, virtual image and reflection of light occurring in this activity.Ĭompare this optical illusion to the light physics of an actual hologram. They should be able to be viewed from any angle and allow the viewer to see the object from multiple sides. Real Holograms are 3D images created by interference of light beams. This Pepper's Ghost activity, while not a true hologram, takes much less technology and is a good exploration of light and viewing angles. The Pepper's Ghost Illusion continues to be used in amusement parks, theatres and other venues. This student activity is a modern take on an illusion first described in 1584 by Neapolitan scientist Giambattista della Porta and popularized for theatrical use by John Henry Pepper in the 1860s, hence its modern nickname "Pepper's Ghost". In a Pepper's Ghost Illusion, when a real or recorded image is reflected in a transparent screen at a 45 o angle, viewers see a reflected virtual image that seems to have depth and appear out of nowhere . 
In this activity, students will construct a 3D illusion of a pyramid that creates a reflected image from a digital screen display.
0 kommentar(er)
