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[@quasar](/creator/youtube/quasar)
"The Curta Calculator: A Mechanical Marvel Explained Part 1"  
![@quasar Avatar](https://lunarcrush.com/gi/w:16/cr:youtube::UC5ufWuD3slSHoWCG7MCv0ug.png) [@quasar](/creator/youtube/quasar) on [YouTube](/post/youtube-video/vCjJ5GeuQD8) 2024-07-26 14:42:23 UTC 29.4K followers, 341.8K engagements


"How Safe Are Combination Locks Lets Find Out"  
![@quasar Avatar](https://lunarcrush.com/gi/w:16/cr:youtube::UC5ufWuD3slSHoWCG7MCv0ug.png) [@quasar](/creator/youtube/quasar) on [YouTube](/post/youtube-video/QBtyt86KYDE) 2024-12-04 10:59:07 UTC 29.4K followers, 32.3K engagements


"The Engineering Behind the Modern Compound Bows"  
![@quasar Avatar](https://lunarcrush.com/gi/w:16/cr:youtube::UC5ufWuD3slSHoWCG7MCv0ug.png) [@quasar](/creator/youtube/quasar) on [YouTube](/post/youtube-video/YkMYWZQ-aV4) 2025-03-29 12:13:48 UTC 29.4K followers, 1.1M engagements