7.17.25 | Altermagnets introduce a new type of magnet, Ex-Waymo engineers create Bedrock Robotics for construction automation, Pgactive offers Postgres active-active replication

Hacker News Highlights · Jul 17, 2025 · 12m

This is a recap of the top 10 posts on Hacker News on Jul 17, 2025.

Altermagnets: The first new type of magnet in nearly a century

https://www.newscientist.com/article/2487013-weve-discovered-a-new-kind-of-magnetism-what-can-we-do-with-it/

https://news.ycombinator.com/item?id=44583171

Ex-Waymo engineers launch Bedrock Robotics to automate construction

https://techcrunch.com/2025/07/16/ex-waymo-engineers-launch-bedrock-robotics-with-80m-to-automate-construction/

https://news.ycombinator.com/item?id=44584372

Pgactive: Postgres active-active replication extension

https://github.com/aws/pgactive…