Aliens are invading Earth using the illusory power of mirrors and reflective properties! A parabolic mirror is a special type of curved mirror that looks like a bowl. It takes incoming light from all directions and reflects it towards a single focus point. Parabolic mirrors also reflect light coming out from the focus point outwards in a parallel beam.
This special flying saucer that the aliens are using to transport their troops to our planet utilizes these two properties to create a hologram that makes the creatures difficult to track or capture. The alien sits at the focus point of the top mirror and light is reflected downwards onto the bottom mirror. This reflected light is then reflected again upwards where it converges at the focus point, recreating the alien as an incorporeal 3D image.
Important intel from our military indicates that captured saucers can be repurposed to create 3D images of any small object (gems, stones, rings, marbles, etc.) placed at the focal point of the saucer's parabolic mirror. With any luck, we can turn the alien technology against them and save our planet!
Study this saucer and its optical properties well and learn its secrets!
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