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4Sciences helps users find science-focused information, products, and tools. Built by search architects and domain specialists, the platform combines multiple indexes, specialized ranking algorithms, and AI systems to return relevant, credible science content. Use the site to search literature, news, vendors, data, and practical resources. Part of the 4SEARCH network of topic specific search engines.
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How I built a billing system with a real double-entry ledger in Node + Postgre SQL
19+ min ago (521+ words) Most billing code has the same bug hiding in it: it stores the account balance as a number and mutates it " balance += amount. It works fine, right up until a payment gets entered twice, or you have to fix last…...
I Traced 1000 Lines of Python Without Running It. Here Is What I Learned.
3+ min ago (471+ words) I spent three weeks doing nothing but Python code tracing. No IDE. No terminal. Just reading code and writing predicted outputs by hand. Here is what changed. I started with what I thought were easy problems. Simple for loops, basic…...
Static site search for Astro in 2026: why I picked Pagefind over Algolia and Lunr
4+ min ago (530+ words) I added search to all three of my AI-curated directory sites last month. The choice wasn't obvious " there are at least four options with real adoption " so here's the breakdown I actually ran through before landing on Pagefind. Pagefind is…...
How I built pairwise AI model compare pages with Claude Haiku and a budget cap
4+ min ago (1077+ words) Here's what I actually built, where it falls short, and what I'd do differently if starting over. The solution I landed on: group by pipeline_tag, pair the top-4 models by download count within each group, then cap total pairs with a…...
Rickrolling The World Cup
8+ hour, 32+ min ago (33+ words) Sometimes, hacking requires a certain amount of restraint, especially when you find a system woefully unsecured. It would be so easy to play some pranks, but [bobdahacker] chose not to rickroll the en. .....
Realme P4x's new variant launches with 8, 000m Ah battery, attractive design
7+ min ago (23+ words) Realme P4x features an 8, 000m Ah battery, 120 Hz display, Android 16, gaming-focused software, and a 50 megapixel camera at an affordable price....
Through sand, slime, fog and light, Jalet and Nawa test limits of human body
7+ min ago (345+ words) The word "planet" traces its roots to the ancient Greek "planetes," meaning wanderer. To ancient astronomers, planets appeared as wandering lights drifting acro...
Eli Lilly plans to use its $7. 3 B cash reserve to fund an "App Store" for biotech scientists after launching a data center with 1, 016 Blackwell chips in 2025
9+ min ago (12+ words) Top news and commentary for technology's leaders, from all around the web....
Algorand Foundation Announces Post-Quantum Security Roadmap, Targets Broad Quantum Resilience by 2027
18+ min ago (405+ words) The Algorand Foundation announced a comprehensive post-quantum security roadmap, committing to advance broad quantum resilience by the end of 2027, well before NIST deprecates legacy RSA key sizes, and three years ahead of the NSA's target for national security systems. Every…...
Five Eyes warns new AI models pose urgent cyber risk within months
7+ min ago (290+ words) The intelligence alliance spanning five nations issued a historic joint statement urging governments and businesses to prepare for AI-supercharged cyberattacks The world's most powerful intelligence alliance just told everyone to brace for impact. The Five Eyes, the spy partnership linking…...