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1.
Playstation's secret weapon: a nearly all-automated factory (nikkei.com)
428 points by gumby on July 6, 2020 | 272 comments
2.
Why is 70% isopropyl alcohol a better disinfectant than 99% isopropanol? (gotopac.com)
283 points by montalbano on May 16, 2020 | 130 comments

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