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It's easy to do your own PD measurement with a mirror and ruler https://news.ycombinator.com/item?id=33525673#33529513 https://news.ycombinator.com/item?id=335
by femto 4y ago
It's easy to do your own PD measurement with a mirror and ruler
https://news.ycombinator.com/item?id=33525673#33529513 https://news.ycombinator.com/item?id=33525673#33529513