1. Successful room temperature ambient-pressure magnetic levitation of LK-99
Total comment counts : 79
Summary
The article states that the reader does not have permission to access a certain URL on a website called arXiv.org. If the reader believes that this is a mistake, they can refer to another URL provided for more information on how to restore access.
Top 1 Comment Summary
The article raises concerns about a paper that appears to be hastily produced and lacking important details about the experimental process. The author is frustrated by the lack of clarity regarding the vacuum level used, the equipment and materials involved, and the cooling process. They argue that including these details would not have taken much time and speculate that the researchers may have been lazy or intentionally withheld information. The author concludes by expressing their hope that no journal would accept such a paper.
Top 2 Comment Summary
The author compares the recent events to the invention of the transistor by Bardeen and Brattain. The transistor initially had flaws and was sensitive to movement. There was also another person who was not given credit for their involvement. The author expresses skepticism but also excitement that others have now made progress with it.
2. (next Rich)
Total comment counts : 62
Summary
The article announces Rich Hickey’s retirement from commercial software development and his new employment at Nubank. Rich expresses gratitude to the Clojure community and the team at Nubank for their support and sponsorship. He plans to continue leading the ongoing work on Clojure and mentions exciting developments for version 1.12 and future releases. Rich also acknowledges the contributions of his colleagues and friends at Cognitect and expresses enthusiasm for the new availability of Datomic. He looks forward to nurturing his friendships and returning to the freedom and independence he had when first developing Clojure.
Top 1 Comment Summary
The word “congratulations” is derived from Latin, combining the prefix “com-” meaning “with,” and “gratulari” meaning “give thanks” or “show joy.” “Gratulari” is derived from “gratus,” which means “pleasing” or “thankful.” The author expresses congratulations to Rich and states their deep gratitude towards him, along with their joy and anticipation for his future endeavors.
Top 2 Comment Summary
The article highlights three main points. Firstly, it discusses the progression of Clojure as a team project, indicating its maturation. Secondly, it suggests that exciting developments are expected due to the freedom and personal liberty of the individuals involved. Lastly, it announces the retirement of the BDFL from an employer to focus on their life’s work. The article concludes by expressing support for these changes.
3. Comcast, CenturyLink fail to derail Utah community-owned gigabit fiber network
Total comment counts : 32
Summary
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Top 1 Comment Summary
The article discusses the progress made in the author’s hometown regarding internet options. The author expresses excitement about the upcoming rollout of a network that will provide fast and affordable internet. They also highlight the poor uplink speeds provided by Comcast and emphasize the positive impact the new network will have on internet users’ quality of life in their town.
Top 2 Comment Summary
The article discusses how a gigabit fiber network connects to the internet and whether it relies on smaller nodes owned by companies like Comcast or AT&T, or if it connects directly to larger providers like Level3. The author also wonders if data prioritization by these companies would affect the network’s performance if many people in the neighborhood start streaming Netflix. The author expresses curiosity and support for expanding providers.
4. If you have first-hand knowledge of the FDA’s torpor, get in touch
Total comment counts : 28
Summary
The article discusses the issues and concerns surrounding the FDA’s slow and unresponsive approach to drug and medical development. The author highlights the reluctance of individuals with first-hand knowledge of the FDA’s shortcomings to speak out due to fears of retribution. They call for people to share their experiences and contribute to reform efforts. The article also touches on bureaucratic challenges and the need for faster and more transparent processes. The author emphasizes the urgency of the situation, particularly for those suffering from curable illnesses. The author mentions a book being written on the subject and expresses frustration with the FDA’s priorities. They conclude by sharing information about turkey tail fungi as a potential treatment for tumors. The article ends with a comment expressing suspicion and conspiracy theories about the FDA’s intentions towards the population.
Top 1 Comment Summary
The article discusses the use of albuterol inhalers and how they have been affected by the ban of chlorofluorocarbons (CFCs) as a propellant. The FDA allowed a pharmaceutical company, GSK, to re-patent the same medication with a new propellant called R-134a, which was already being used as a propellant for refrigeration. This change caused the price of inhalers to increase significantly, from $5 generics to $90 brand name inhalers overnight. GSK also obtained additional patents that prevented other similar medications from existing. The article highlights that the propellant R-134a is now being phased out again, potentially leaving people with breathing issues without access to the medication once more.
Top 2 Comment Summary
The author recalls being able to purchase Colchicine for a low price in the early 2000s. However, due to a change in regulations in 2006, the price increased significantly. The author sarcastically expresses frustration at this, highlighting the irony of needing to pay a high price for a medication that has been used for thousands of years.
5. Andrew McCalip demonstrates synthesis of LK99
Total comment counts : 30
Summary
The article is not provided in the input. Instead, the input is a notice that JavaScript is disabled in the browser and provides information on enabling JavaScript or switching to a supported browser in order to continue using Twitter.com. The notice also mentions the Help Center for more information.
Top 1 Comment Summary
The author of the article suggests that they do not see any evidence of superconductivity in the video. They explain that if the material being shown is a type-II superconductor, there should be evidence of flux pinning, where the material would be stuck in place when moved with a tweezer due to magnetic flux lines being pinned to defects. The author also mentions that the critical field of a small flake of the material is relatively low, and suggests using an electromagnet to increase the field strength and observe if the material drops once the critical field is reached. They propose that a more convincing test would be to observe the breakdown of diamagnetism with an increase in field strength without hysteresis. The author suggests that another test could be to produce a Josephson junction and measure Shapiro steps at high frequency, which is a characteristic of superconducting quantum materials. They also mention the possibility of using microwave irradiation and measuring reflectivity/transmittance to detect an intrinsic Josephson effect. However, the author concludes by stating that without more details about the material, it is difficult to determine if it is indeed a superconducting material.
Top 2 Comment Summary
The article expresses a bullish outlook on Varda Space due to the high quality and expertise of its engineers, suggesting they could quickly replicate a certain achievement if given access to raw materials. The article also points out that Varda Space has been working on this project during their off time, unlike big academic labs that have not been successful in completing a similar replication.
6. Mozilla VPN: CVE-2023-4104: vpndaemon wrongly implements Polkit authentication
Total comment counts : 10
Summary
The article promotes the use of mailing lists and provides links to resources for further information. It mentions the Open Source Software Security Wiki as a counterpart to the mailing list. The article also suggests reading about mailing lists on Wikipedia and provides guidelines for proper formatting of messages.
Top 1 Comment Summary
The article discusses a report about security vulnerabilities related to Mozilla. The report states that most of the issues mentioned are not being addressed by the company. The findings were privately shared with Mozilla, but there has been a lack of communication and no formal reply. The report also mentions that the embargo over the issue was violated by upstream, which has raised concerns about the company’s handling of security vulnerabilities.
Top 2 Comment Summary
The article explains that local users on a system, including service users like ’nobody’, have the ability to manipulate a running Mozilla VPN daemon through D-Bus. This includes actions such as activating the VPN with an attacker’s chosen server, deactivating the VPN, accessing log files to view historical VPN activation, and clearing log files. However, it is important to note that this requires a local shell on the user’s system and does not involve a remote authentication bypass as the headline may suggest. The article emphasizes that this behavior violates permission boundaries and highlights the importance of these boundaries.
7. A collection of quant riddles with answers
Total comment counts : 13
Summary
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Top 1 Comment Summary
The article discusses the optimization of the dynamic programming solution for problem #14. It mentions that some individuals were able to reduce the solution time from months or order of magnitude (OOM) to milliseconds. The problem size was also increased from a few hundred to a maximum of 133 million. The article provides a link for further reading.
Top 2 Comment Summary
The article discusses whether a riddle is the same as a math problem or if it is more of a wordplay. The author provides an example of a riddle where the answer is a hole.
8. What does the “pipe” value mean in the output of “ping”? (2009)
Total comment counts : 9
Summary
The “pipe” value that appears in the rtt statistics when using the ping command indicates the maximum number of echo request packets that were sent without receiving an echo reply. It increases each time a new echo request is sent before the previous ones are answered. The pipe value can be observed by pinging a system with a longer round trip time (rtt) and decreasing the interval time between requests. Systems on slow or distant links, such as those in New Zealand, can be used for testing.
Top 1 Comment Summary
The “pipe” number refers to the maximum number of echo request packets that were sent but not answered by an echo reply packet, before eventually receiving a response.
Top 2 Comment Summary
The article explains that “pipe” refers to the maximum number of requests that were simultaneously in progress at a specific time.
9. Some remarks on possible superconductivity of composition Pb9CuP6O25
Total comment counts : 7
Summary
The article discusses the lack of permission to access a certain website and provides a link for more information on how to restore access.
Top 1 Comment Summary
This article discusses the limited applications of superconductivity within a crystalline structure. The author highlights that the magic of superconductivity disappears when it interfaces with non-superconducting materials due to resistance and heat generation. However, there may still be some applications, such as using nanocrystals to levitate trains if production is perfected. The article also suggests that further study of superconductivity may lead to the discovery of other superconductors without these limitations.
Top 2 Comment Summary
The article discusses a study comparing the superconducting properties of a thin film made of lead (Pb) to recent attempts to reproduce the LK-99. The researchers suggest that people may be getting superconducting nanocrystals embedded in amorphous material. They also express interest in seeing more detailed microscopic findings in superconductivity research.
10. Remote work requires communicating more, but less frequently
Total comment counts : 36
Summary
The article discusses how remote work requires more communication, but less frequent communication. It explains that remote workers should embrace asynchronous communication methods, such as long-form writing or videos, which allow more time for reflection and synthesis before sharing ideas. This improves the quality and clarity of communication and increases overall throughput. The article suggests optimizing for information retrieval and discovery and shifting communication from one-to-one to one-to-many. The author provides tips for communicating more, less frequently.
Top 1 Comment Summary
The article discusses the importance of effective communication in remote work. It highlights that although remote communication may happen less frequently, it needs to be richer to optimize productivity. The absence of physical proximity in remote work necessitates effective note-taking and understanding to ensure successful accomplishment of tasks.
Top 2 Comment Summary
The article suggests that while experienced engineers may not need much guidance, junior workers often require concise instructions to avoid wasting time. The author believes that quick conversations can save junior software engineers from significant frustration and lost productivity. During the pandemic, the less experienced engineers likely struggled with low productivity and a lack of confidence, which are interconnected issues.