Hacker News on 20 May 2018

• Sci Hub repository torrents of scientific papers
• Getting 1Password 7 ready for the Mac App Store
• Europe’s open-access drive escalates as university stand-offs spread
• CSCI E-23a: Introduction to Game Development
• Facebook: Let Us Be Part of the Hearing
• Tearing apart printf()
• Medieval trade networks
• Ocean-going robots that could revolutionize fishing, drilling, and science
• AsteroidOS – An open-source operating system for smartwatches
• Finland's cities are havens for library lovers