See through calculator for use on an overhead projector Submitted by CrouchingToaster t3_1004zfc on December 31, 2022 at 10:10 PM in mildlyinteresting 16 comments 774
photonicsguy t1_j2ft5lz wrote on December 31, 2022 at 11:26 PM Isn't the solar panel facing the wrong way? :D Permalink 6
See through calculator for use on an overhead projector
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