First screen, captured .
444 points by lnyan | 268 comments
arXiv preprint (v2) by Lee et al. claiming LK-99, a copper-doped lead apatite, is a room-temperature ambient-pressure superconductor showing levitation.
497 points by spekcular | 373 comments
arXiv preprint presenting DFT calculations of the electronic structure of the putative room-temperature superconductor LK-99 (Pb9Cu(PO4)6O), finding flat Cu bands at the Fermi level.
687 points by zaikunzhang | 287 comments
arXiv preprint reporting possible Meissner effect near room temperature in copper-substituted lead apatite (LK-99-type material), based on magnetization measurements.
576 points by spekcular | 240 comments
arXiv preprint reporting a synthesis of the LK-99 compound Pb10-xCux(PO4)6O that shows semiconducting rather than superconducting transport.
519 points by sahebjot | 172 comments
Homepage of alphaXiv, a Stanford project that adds open discussion and comments on top of arXiv research papers.
268 points by stmonty | 94 comments
Richard Feldman's blog post benchmarking roc-deflate, a pure Roc DEFLATE library, against C's libdeflate, finding it under 10% slower, and describing Roc-specific optimizations.
613 points by thecopy | 325 comments
A tweet reporting that a Southeast University team observed zero electrical resistance below 110 K in LK-99 samples, with video screenshots and charts.
1400 points by Akronymus | 770 comments
arXiv preprint by Lee, Kim, and Kwon claiming LK-99, a modified lead-apatite, is a room-temperature, ambient-pressure superconductor.
318 points by sean_pedersen | 79 comments
GitHub repository for Perplexica, an open-source AI-powered search engine positioned as an alternative to Perplexity AI, built on SearxNG.
12 points by raybb | 2 comments
An essay by Josh Albrecht on Imbue's Substack arguing for a new personal computing revolution that restores user control, free of subscriptions, ads and dark patterns.