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Riddle solved: Why was Roman concrete so durable? (2023)

https://news.mit.edu/2023/roman-concrete-durability-lime-casts-0106
2•Jakob•1h ago

You're probably using Agent Skills wrong

https://notes.ansonbiggs.com/youre-probably-using-agent-skills-wrong/
1•MisterBiggs•6m ago•0 comments

Hacking their bodies for a longer life: is there science behind their methods?

https://www.nature.com/articles/d41586-026-01884-z
2•olalonde•10m ago•0 comments

World-first catch: new shark species

https://www.eurekalert.org/news-releases/1132305
2•gmays•14m ago•0 comments

Show HN: Baserates.dev, memorize programmer napkin math

https://www.baserates.dev/
1•stopachka•18m ago•0 comments

The Doom Justifies the Valuation

https://geohot.github.io//blog/jekyll/update/2026/06/21/the-doom-justifies-the-valuation.html
10•inatreecrown2•23m ago•0 comments

The Next Black President

https://www.vanityfair.com/story/the-next-black-president
6•Kapura•26m ago•0 comments

Ask HN: Are you being "529 Overloaded" by Anthropic too?

3•hmokiguess•27m ago•1 comments

QEMU with Espressif

https://github.com/espressif/qemu
2•arbayi•28m ago•0 comments

Older iPhones are vulnerable to a flaw Apple likely can't fix

https://mashable.com/tech/older-iphones-vulnerable-to-a-flaw-apple-cant-fix
3•gnabgib•29m ago•0 comments

Claude: Elevated Error Rates for Opus 4.8, Opus 4.7, Opus 4.6, and Sonnet 4.6

https://status.claude.com/incidents/lv35v0q9nsj2
31•forks•30m ago•32 comments

(Reverse Engineering) Apple Internals: Swift in the Kernel

https://blog.calif.io/p/apple-internals-swift-in-the-kernel
3•dnw•32m ago•0 comments

1983 Northern Telecom Commodore Phone

https://www.oldtelephoneroom.ca/1983-northern-telecom-commodore-phone/
4•arexxbifs•34m ago•0 comments

Give your sandboxed agents API keys they can't read

https://www.superserve.ai/blog/introducing-secrets/
2•Amit_Patil_010•36m ago•0 comments

Better Grammar – Grammar Practice for Adults

https://benkaiser.github.io/better-grammar/
3•benkaiser•40m ago•0 comments

Summer Solstice 2026: Sunrise Live from Stonehenge [video]

https://www.youtube.com/watch?v=Z8a4eoxUIMw
2•zeristor•41m ago•2 comments

10 years of terms and conditions I've agreed to

https://henryach.com/blog/tsandcs/
3•henryhoward•43m ago•1 comments

An Axiomatic Audit of Modern Physics Frameworks via Structural Logic

https://zenodo.org/records/20780519
2•VCNoninski•45m ago•0 comments

Promptblock – detect prompt injections in GitHub issues

https://ryandens.github.io/promptblock/
2•rdens1•48m ago•1 comments

Show HN: I Built an MCP Server in 200 Lines of Go (and Claude Became 10x Useful)

https://medium.com/dev-genius/i-built-an-mcp-server-in-200-lines-of-go-and-claude-became-10x-more...
2•cheikhshift•50m ago•1 comments

Show HN: Wirewright, an experimental symbolic physics environment

https://github.com/wirewright/wirewright
2•homonoidian•53m ago•0 comments

HiFi/Stereo Review-Stereo Review – Audiophile Magazine from 1958 to 1999

https://www.worldradiohistory.com/Archive-All-Audio/HiFI-Stereo-Review.htm
3•PopAlongKid•1h ago•1 comments

Show HN: Phileas – Local-first memory that remembers you

https://github.com/alexajuno/phileas
2•alexajuno•1h ago•1 comments

Jets were 300 feet apart in Boston close call that forced Delta flight to abort

https://www.pbs.org/newshour/nation/jets-were-300-feet-apart-in-boston-close-call-that-forced-del...
4•abixb•1h ago•0 comments

New Super Pac Aims to Rally Tech Workers to Help Limit A.I

https://www.nytimes.com/2026/06/18/technology/ai-super-pac-guardrails-alliance.html
12•reasonableklout•1h ago•0 comments

Napoleon Was a Guitarist

https://www.yamaha.com/en/musical_instrument_guide/classical_guitar/trivia/
4•thunderbong•1h ago•1 comments

Bean – a portable convergence gate for agent work

https://github.com/grainulation/bean/
4•woptober•1h ago•0 comments

Spas Were a Mistake (2022)

https://gomakethings.com/articles/spas-were-a-mistake/
6•kristianp•1h ago•1 comments

FoodFavs

https://foodfavs-euq7bgdf.manus.space/
3•pteridactlecdt•1h ago•0 comments

Show HN: TaxLens – free lodging-tax API for hotels, OTAs, and property managers

https://taxlens.getdynamiq.ai
3•vitalii-duk•1h ago•0 comments

A dead simple personal website engine for developers focused on simplicity

https://github.com/iam-mhaseeb/koji
5•iamhaseeb•1h ago•0 comments