Mapping your world with Ruby
summary
Safecast runs a crowd‑sourced environmental map built with a long‑running Ruby on Rails API that writes into Postgres and feeds web tiles and mobile apps. Volunteers build and deploy weatherproof sensor kits, fixed cell‑connected point sensors and solar‑powered “drop‑and‑forget” units; the project aggregates roughly nearly 70 million data points and streams continuous five‑second radiation and growing PM2.5 readings. The hardware and the ingestion pipeline work in production, and teams are adding Elasticsearch and parquet exports for bigger‑data queries.
AI-written summary · about
chapters (11)
- 0:00Start
- 2:58Air Quality
- 4:57The Tohoku Earthquake
- 26:23Infrastructure
- 30:51Cons
- 33:19Good Is Better than Perfect
- 34:37Why Safecast
- 35:44Freedom and Flexibility
- 35:59Amazing Connections
- 36:49Joe Morris
- 37:52Summary
