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2026/07/26

  1. JetZero from jetzero.aero
    210 by lisper 9h ago | | |

    Article: 2 min

    Alaska Airlines has invested in JetZero through Alaska Star Ventures, which also includes options for future airplane orders. JetZero recently raised $175 million in its Series B financing led by B Capital. United Airlines has also invested in JetZero with the potential to purchase up to 200 airplanes. JetZero broke ground on its first manufacturing and final assembly campus in Greensboro, North Carolina. Pat Shanahan and Eric Hirshberg have joined the board of directors for JetZero. The company signed a Letter of Intent (LOI) with EXIM Bank to explore financing support for the development of an aerospace manufacturing campus in Greensboro, NC. JetZero is also opening an engineering office in Wichita, Kansas, located at the National Institute for Aviation Research (NIAR) at Wichita State University. Japan Airlines Co., Ltd. has partnered with JetZero to support its Z4 program, and Gulf Air has signed a Letter of Intent for JetZero's Z4 aircraft.

    Discussion (186): 24 min

    The comment thread discusses the potential of JetZero's Z4, an all-wing airplane aiming for improved fuel efficiency and reduced carbon emissions. Opinions vary regarding its feasibility, safety with no windows, and impact on passenger experience. The conversation touches on challenges like regulatory hurdles, integration issues, and established design barriers in aerospace engineering.

    • New aircraft design may offer significant fuel efficiency improvements
    • Safety concerns with no windows
    Counterarguments:
    • Feasibility of a new aircraft design is questionable
    Aerospace Aviation, Aerospace Manufacturing
  2. An ESP32 based plane radar for my desk from blog.ktz.me
    174 by alexktz 9h ago | | |

    Article: 5 min

    A DIY project that transforms an ESP32-C3 and a 1.28-inch round display into a live aircraft radar, displaying nearby ADS-B traffic with details on the screen.

    • Pulls nearby ADS-B traffic data, plotting each aircraft by distance and bearing on the screen.
    • Soldering required for assembly.
    • Easy firmware flashing using ESPHome web tool.
    • Improvements include flight context with origin and destination information, more descriptive aircraft types, local weather display, adjustable display options, and support for authenticated OTA updates.

    Discussion (36): 3 min

    The comment thread discusses the capability of an ESP32 to receive and decode ADS-B traffic, with opinions on its adequacy compared to TLS connections. There is debate around whether ADS-B should be considered radar-like technology and suggestions for improving location data input methods.

    • The ESP32 might be capable of receiving and decoding ADS-B traffic.
    • ADS-B is not a true radar system.
    Counterarguments:
    • WiFi positioning could be used instead of user input for location data.
    Hardware Arduino/ESP32 Projects, DIY Electronics
  3. Inflect-Micro-v2: complete voice in 9.36M parameters from huggingface.co
    148 by nateb2022 11h ago | | |

    Article: 21 min

    Inflect-Micro-v2 is a compact, high-quality voice synthesis model with 9.356 million parameters that enables local text-to-waveform conversion under 10M parameters. It features fixed-voice English TTS with deterministic seeds, long-text handling, and support for both CPU or CUDA inference.

    The model's compact size and high quality make it accessible for various applications, potentially democratizing speech synthesis technology.
    • Deterministic seeds for reproducibility
    • CPU or CUDA inference options

    Discussion (11):

    The comment thread discusses a speech synthesis technology with high praise for its impressive quality and small size, but also mentions some limitations such as not being enjoyable to listen to and having weird inflections. There is a debate comparing it to historic TTS tools.

    • amazing quality for small size
    Artificial Intelligence Machine Learning, Natural Language Processing, Speech Synthesis
  4. Show HN: I mapped every US golf course from golfcoursebrowser.com
    147 by rickmf 9h ago | | |

    Article:

    An individual has created a comprehensive map of all US golf courses, offering over 16,000 courses with scorecards and location details.

    • Free access without signup required
    • Interactive corrections feature available

    Discussion (81): 15 min

    This comment thread discusses a project aimed at creating the most complete golf course directory in the world, verified by actual golfers. The community is generally positive about the initiative but raises concerns regarding data accuracy and environmental impact. There are plans to expand the map globally, including other types of facilities like mini golf courses.

    Counterarguments:
    • Some users are concerned about the environmental impact of golf courses and resource usage.
    Sports Golf
  5. GrapheneOS protections against data extraction from locked devices from discuss.grapheneos.org
    126 by Cider9986 6h ago | | |

    Discussion (65): 8 min

    The comment thread discusses various aspects of GrapheneOS, its role in protecting user data, and legal implications related to phone security. Participants debate the effectiveness of duress PINs, backup methods, and privacy rights.

    • GrapheneOS offers strong protection against data extraction
    • Backup without security chip is ineffective
    Counterarguments:
    • Government should prove no backup exists before prosecution
    • Liberty is given up in inches, not miles; opposing fascism requires privacy
  6. Ruff v0.16.0 – Significant new updates – 413 default rules up from 59 from astral.sh
    106 by vismit2000 3h ago | |

    Article: 14 min

    Ruff v0.16.0 introduces a significant update with an expanded default rule set of 413 rules, up from 59 in previous versions. This version also includes new features such as Markdown code block formatting and enhanced suppression comment functionality.

    The update may lead to improved code quality and maintainability, benefiting developers by catching potential issues early in the development process.
    • 413 default rules enabled by Ruff, up from 59 in previous versions.
    • Better rule set for catching severe issues like syntax errors and runtime errors.
    • Enhanced suppression comment functionality with new ruff: ignore comments.

    Discussion (46):

    Comment analysis in progress.

    Software Development Code Analysis Tools
  7. Alien World Chemistry Found Inside Meteorite That Struck New Jersey Home from seti.org
    85 by spzx 10h ago | | |

    Article: 12 min

    Researchers have discovered a meteorite that fell in Hillsborough, New Jersey, containing preserved bits from a small primitive asteroid where concentrated salty fluids were present. This is the second known CM1/2 carbonaceous chondrite to fall on Earth, and it provides evidence of ancient brines that could potentially create molecules crucial for life.

    Discussion (23):

    The comment thread discusses the quick thinking of an individual who preserved and documented a meteorite impact on his property, garnering admiration from some and humor from others. The conversation also touches upon scientific aspects related to meteor strikes, NASA's involvement, and the dynamics between humor and seriousness in online discussions.

    • admiration for the individual's actions
    • NASA's praise
    Counterarguments:
    • humorous reactions to meteor strikes
    Astronomy Meteorites, Space Exploration
  8. Git rebase -I is not that scary from cachebag.sh
    79 by vinhnx 11h ago | | |

    Article: 9 min

    Explains Git rebase -I command, dispelling common fears about its usage in software development.

    • Interactive rebasing allows for customization of commit messages and merging commits.
    • Rebasing doesn't destroy commits, it creates new ones.
    • Reflog records all changes made during a rebase, allowing recovery if something goes wrong.

    Discussion (95): 16 min

    The comment thread discusses various opinions and experiences related to Git's `rebase` command, emphasizing its power and potential challenges. The community agrees on the importance of understanding core concepts for effective usage but debates the learning curve and simplicity of Git.

    • Rebase is an essential tool for managing version history
    • Conflicts and mistakes can be scary but are manageable with practice
    Counterarguments:
    • Some developers may lack understanding of Git's core concepts
    • Conflicts and mistakes can be time-consuming to resolve
    Software Development Git & Version Control Systems
  9. Humans haven't stopped evolving from harvardmagazine.com
    67 by ilamont 8h ago | | |

    Article: 10 min

    A recent study by geneticist David Reich and his team has revealed that human evolution is still happening rapidly, with hundreds of genetic shifts occurring in the past 10,000 years. The findings contradict previous beliefs that human DNA had not changed much during this time frame.

    • 479 genes showing evidence of natural selection
    • Shifts in immunity-related genes

    Discussion (84): 26 min

    The comment thread discusses various opinions on human evolution, with a focus on whether humans have stopped evolving and the impact of societal changes and technological advancements. The discussion includes arguments for both sides, with some agreeing that selective pressures are shifting towards traits beneficial in modern society, while others argue that evolution never truly stops.

    • Evolution is still happening, but at a slower pace due to technological advancements and societal changes
    • Evolutionary pressures are shifting towards traits that improve social standing and reproductive success in modern society
    Counterarguments:
    • Evolution never stops; it's just too slow for humans to notice significant changes over short timescales.
    • Cultural evolution can disappear on a few weeks' timescale, while genetic evolution is much slower.
    • The selective pressures faced by humans have changed radically in the time we've been around.
    Science , Genetics
  10. Systems and Delays from martin.janiczek.cz
    66 by vinhnx 11h ago | | |

    Article: 14 min

    This article discusses the counterintuitive nature of delays in systems, using a car dealership manager's scenario as an example. It explores how delays can lead to oscillations and instability in inventory management when trying to maintain a steady stock level.

    Educating business professionals on understanding and managing delays in systems can lead to more efficient operations and reduced waste, benefiting both businesses and society.
    • Introduction to Thinking in Systems book
    • Comparison between delay-less system vs. realistic delays
    • Oscillations caused by combining delivery and response delays
    • Impact of shortening or lengthening delays on inventory management
    Quality:
    The article provides a clear and balanced explanation of the topic, supported by visual aids and a practical example.

    Discussion (14):

    The comment thread discusses the implications of delays in control systems, referencing 'The Beer Game', 'Bullwhip effect', and 'Nonlinear Dynamics and Chaos' by Steven Strogatz. It also touches on game theory's relevance to distributed systems.

    • delays in control systems can lead to oscillations
    Counterarguments:
    • Response delay divisor isn't a delay, it's the inverse of amplification
    • Game theory is more useful for distributed systems than control theory
    Business Operations Management, Supply Chain Management
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