Perpetual Motion Machine Designs & Theory now has a section at the end on flummoxes: machines that appear to work, and then appear not to work. It's a kind of arcane classification for good writing on perpetual motion.
The Book of Uniques has also been updated. Several new images and uniques entries have been added, for those that have considered buying that book, it is now 72 pages long, instead of 68 (or whatever it was).
PMM D&T is now a more satisfying 100 pages.
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