top 50% hacker news stories for today

PGSimCity - How PostgreSQL Works

https://nikolays.github.io/PGSimCity/

2 hours ago

121 upvotes – 19 comments

I Championed Prediction Markets. Look What They've Become

https://newsletter.platypuseconomics.com/p/i-championed-prediction-markets-look

2 hours ago

31 upvotes – 46 comments

The US is charging an American citizen for wiping his phone at the border

https://gizmodo.com/a-feature-that-makes-your-phone-data-self-destruct-in-authorities-hands-may-soon-have-its-day-in-court-2000790831

1 hour ago

11 upvotes – 2 comments

Open-source 3D-printed portable MRI machine built for under $70k

https://www.tomshardware.com/tech-industry/artificial-intelligence/open-source-3d-printed-portable-mri-machine-built-for-under-usd70-000-diy-medical-equipment-costs-less-than-7-percent-of-a-full-sized-mri-machines-usd1-1-million-starting-price

2 hours ago

11 upvotes – 2 comments

Show HN: Port Zero – how I learned to stop worrying and love PORT=0

https://portzero.net/

2 hours ago

11 upvotes – 3 comments

How the Atmos clock functions

https://atmos-atelier.de/en/atmos-uhr/

2 hours ago

8 upvotes – 1 comments

Quebec scraps AI and automation projects in the public sector

https://www.ctvnews.ca/montreal/article/quebec-scraps-ai-and-automation-projects-in-the-public-sector/

2 hours ago

7 upvotes – 0 comments

Why a Ukrainian cruise missile is flying with hobby drone hardware

https://www.newscientist.com/article/2580002-why-a-ukrainian-cruise-missile-is-flying-with-hobby-drone-hardware/

1 hour ago

6 upvotes – 2 comments

New Jersey governor signs law banning surveillance pricing to protect shoppers

https://www.theguardian.com/us-news/2026/jul/26/new-jersey-surveillance-pricing-ban

27 minutes ago

5 upvotes – 1 comments

Hunter-gatherers introduced fish to a mountain lake 7000 years ago

https://www.newscientist.com/article/2580119-hunter-gatherers-introduced-fish-to-a-mountain-lake-7000-years-ago/

1 hour ago

5 upvotes – 0 comments
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