David Turner says…

Unicode glyphs for Mac OS keyboard modifiers

Bayesian bisection

The Doomsday rule: mental day-of-week calculations

Tracking down a seven-year-old segfault

Testing storage for corruption bugs

Corruption detection in Lucene and Elasticsearch

Rolling packet captures

Ambiguous clocks

Identifying leap years

Timezone-sensitive rounding

Programming an ATMega328P with a Raspberry Pi