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L3-19 PENNY AND PARABOLIC MIRRORS 10 years 3 months ago #853

zzfixk21
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ID Code: L3-19
Purpose: Classic illusion of penny levitating above a pair of parabolic concave mirrors
Description: This commercial apparatus forms a real image of a penny glued to the bottom mirror. Two concave parabolic mirrors with the correct focal length and spacing create an image of the penny levitating on the opening of the upper mirror. The illusion can be viewed within a limited angle, so it is most effective for individual observation. A ray drawing is included which shows how the image is produced
Availability: Available

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Last edit: by zzfixk21.

L3-19 PENNY AND PARABOLIC MIRRORS 8 years 2 months ago #1726

daetwyler Offline Administrator Posts: 83 Thank you received: 1	Check out this video of a giant version! Check this box to be notified of replies to this topic. Note: BBcode and smileys are still usable.
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