Researchers have synthesized LK-99 crystals capable of magnetic levitation at room temperature.
Previous studies have shown that LK-99 materials exhibit the Meissner levitation phenomenon and have a higher superconducting transition temperature than originally believed.
This research implies that non-contact, superconducting magnetic levitation at room temperature could become a reality soon.
The summary covers a range of topics, including the controversy surrounding a leaked paper on a room temperature superconductor and the banning of cars in city centers.
It also includes discussions on the significance of inventions throughout history, potential cancer cures, future scientific breakthroughs, limitations and potential of AI chat bots, and advancements in physics, philosophy, and technology.
The post offers a diverse and comprehensive exploration of various subjects relevant to technology and science.
Hacker News forum discussions cover a wide range of topics including working with outdated technologies, transitioning to new jobs, high-frequency trading, work-life balance, retirement, skill development, talent in software development, the impact of having children, and finding fulfillment in one's job.
The conversations on the forum provide diverse experiences, perspectives, and insights into societal pressures related to the tech industry.
The discussions on Hacker News offer valuable insights and perspectives for software engineers and individuals interested in the tech industry.
Hackers have discovered an exploit that can unlock software-locked features in Tesla vehicles, such as heated seats and the Full Self-Driving package.
The hack requires physical access to the car and involves a voltage fault injection attack on the infotainment system.
The hackers claim their "Tesla Jailbreak" is unpatchable and allows for running arbitrary software on the infotainment system, potentially unlocking all software-locked features.
The author shares their initial skepticism of the Elixir language and their lack of experience with web programming.
After reading tutorials and understanding its similarities to Lisp and integration with Erlang, the author becomes interested in Elixir.
The Phoenix web framework is praised as an example of how to write complex Elixir programs, despite the author's initial confusion with syntactic sugar and macros. Additionally, the author highlights the robustness, multiprocessing power, transparency, and the use of lists, tuples, and atoms in Erlang and Elixir.
The discussions revolve around various aspects of the Elixir programming language and its frameworks, including syntax, concurrency capabilities, and simplified production environment.
Participants express admiration for Elixir's syntax and its usefulness for writing quick scripts, comparing it to other languages like Ruby and Python.
Maco usage in Elixir is also explored, with different opinions on their effectiveness and necessity. Other topics include the readability and usability of Elixir and Clojure, challenges of using Elixir on Windows, and the significance of static typing in different programming languages.
IBM and NASA have collaborated to release a large geospatial AI model called Prithvi on Hugging Face's platform.
Prithvi is designed for the scientific community and focuses on analyzing satellite images to classify land usage, track deforestation, predict crop yields, and monitor greenhouse gases.
Critics have expressed concerns about the lack of detailed information regarding the capabilities of the model in the press release.
The FCC has imposed a record-breaking fine of $300 million on a robocaller for engaging in a scam scheme since 2018.
The robocaller used different names and pretended to be a company selling auto warranties to collect personal information.
While the FCC's efforts, including partnerships with state law enforcement, have significantly reduced auto warranty calls by 99%, it is unclear if and when the fine will be paid due to the FCC's limited authority in collecting fines effectively.
The article focuses on the issue of robocalls and unwanted phone calls, which are seen as a significant annoyance and inconvenience.
Various potential solutions are discussed, including stricter regulations, fines for telcos, and identifying the origin of calls.
There is frustration with Apple's handling of spam, leading some to consider switching to Android, which is believed to have more effective robocall screening.
The passage covers various topics related to networking, including the network stack, network routing, packet switching, TCP, and HTTP.
It explains concepts such as TCP slow start, packet loss and retransmission, Ethernet as a physical layer protocol, and the layered structure of internet protocols.
The influence of payload size on modern protocols like HTTP/2 is discussed, and the choice of 1,500 bytes as the Ethernet payload size is described as a trade-off for efficiency.
The project utilizes diffusion models to add color to black and white images, employing the LAB color space and a UNet model to predict color noise.
It serves as a proof of concept, showcasing the potential for improvement by incorporating pretrained face recognition networks and implementing cross attention.
The project provides instructions for usage, including downloading the dataset and executing the colorization process, while acknowledging the code and resources used from other repositories.
Hydra is an open-source, column-oriented version of Postgres designed to handle large datasets and enable fast aggregation of data.
Analytical queries on Postgres can be time-consuming and resource-intensive, but Hydra eliminates these issues.
The latest version, Hydra 1.0, is available for users to try out and provide feedback, with a full release planned in the near future. A free tier on the cloud allows users to explore Hydra's capabilities.
Hydra 1.0 is an open-source, column-oriented version of Postgres designed for faster aggregates and queries on large datasets.
It automatically loads data into a columnar format, supports compression, and is compatible with popular Postgres clients.
The project is planning to release version 1.0 soon and offers a free tier for users to try it out.
Comparisons between Hydra and other columnar storage options like Citus have sparked discussions on performance and benefits.
The passage also introduces the concept of tables with multiple columns and suggests using a sparse set data structure for evaluating predicates and tracking matching values in columns.