Ten Dollar Pseudoscope

See everything inside out through this classic optical instrument.

From the column DIY: Science

By Rob Hartmann

Revised diagram

Here's a revision of the diagram based on the corrections described below:

diagram

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Errata for this article

Correction for page 138
In Fig. 2, the distance between the left edge of the base and the center of the leftmost mirror block was incorrectly labeled as 5/16" rather than 15/16". You can find the correct dimensions in this revised diagram and on author Rob Hartmann's blog, at pseudoscope.blogspot.com.

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