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1. What Made Apollo a Success? [pdf] (nasa.gov) 2 points by cjen 6 months ago | past | 1 comment 2. How Your Phone Knows Up from Down (youtube.com) 4 points by cjen on March 5, 2023 | past | 2 comments 3. Effort justification (wikipedia.org) 2 points by cjen on Jan 5, 2019 | past

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