Hacker News on 21 November 2016

• 4-bit calculator made from cardboard and marbles
• Apple Abandons Development of Wireless Routers
• What I learned from spending 3 months applying to jobs after a coding bootcamp
• Tell HN: Riseup.net fails to update canary; fingerprints deleted without notice
• Japan issues tsunami warning after magnitude 7.3 earthquake
• Show HN: Publish a Markdown website in 5 minutes
• Homeopathy 'treatments' must be labelled to say they do not work, US gov orders
• U.S. Citizens Now Hold About $1.3 Trillion in Student Loan Debt
• Show HN: Generate Google Slides from Markdown
• What is “:-!!” in C code?