First screen, captured .
Looks similar
The first room-temperature ambient-pressure superconductor?(arxiv.org)
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.
Room-Temperature Ambient-Pressure Superconductor LK-99 preprint revision 2(arxiv.org)
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.
Electronic Structure of LK-99(arxiv.org)
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.
Observation of zero resistance above 100 K in Pb₁₀₋ₓCuₓ(PO₄)₆O(arxiv.org)
734 points by segfaultbuserr | 348 comments
arXiv preprint reporting zero resistance above 100 K at ambient pressure in a synthesized polycrystalline sample of copper-doped lead apatite (LK-99).
Related stories
Ferromagnetic half levitation of LK-99-like synthetic samples(arxiv.org)
317 points by platz | 276 comments
arXiv preprint reporting that LK-99-like samples show half levitation due to soft ferromagnetism, with no evidence of superconductivity.
Successful room temperature ambient-pressure magnetic levitation of LK-99(arxiv.org)
2308 points by spekcular | 1146 comments
arXiv preprint reporting synthesis of LK-99 crystals that show room-temperature, ambient-pressure magnetic levitation, replicating Sukbae Lee et al.'s claims.
Reproducing GPT-2 in llm.c(github.com)
578 points by tosh | 109 comments
A GitHub discussion in Andrej Karpathy's llm.c repository about reproducing GPT-2 training from scratch in C/CUDA.
Electronic Structure of LK-99(arxiv.org)
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.
The Intel 8087 chip: floating-point addition and subtraction(righto.com)
102 points by pwg | 33 comments
Ken Shirriff blog post examining the Intel 8087 coprocessor's microcode and circuitry for floating-point addition and subtraction, including special cases.
LLM from scratch, part 28 – training a base model from scratch on an RTX 3090(gilesthomas.com)
482 points by gpjt | 101 comments
Blog post, part 28 of a series, describing an experiment training a ~163M-parameter base LLM from scratch on a single RTX 3090 at home.