hackernews

1. Pythagorean Theorem found on clay tablet 1k years older than Pythagoras (2009) Total comment counts : 44 Summary The article discusses the history and significance of the Pythagorean Theorem. It mentions that the theorem was named after Pythagoras but was actually discovered by Babylonian mathematicians 1000 years before Pythagoras was born. The article also notes that there are over 371 proofs of the theorem, including ones by famous figures like Leonardo da Vinci and President James A....

1. An interactive intro to CRDTs Total comment counts : 23 Summary The article discusses Conflict-free Replicated Data Types (CRDTs) and how they can be used to build collaborative applications. It explains that CRDTs are data structures that can be stored on different computers and allow each peer to update its own state instantly without relying on a central server. CRDTs are categorized into state-based and operation-based types, with state-based CRDTs transmitting their full state between peers....

1. PicoCalc: A fully-functional clone of VisiCalc for the PICO-8 Total comment counts : 7 Summary PicoCalc is a spreadsheet application for the Pico-8 that is a clone of the 1979 classic VisiCalc. It offers all the same features as VisiCalc, with some enhancements. Users need to know how to use VisiCalc to effectively use PicoCalc. The application is available for download on itch.io. The article also includes comments from users who express gratitude for the nostalgia and functionality of PicoCalc....

1. Goodbye integers, hello UUIDv7 Total comment counts : 46 Summary The article discusses the adoption of UUIDv7 as the primary key choice for Buildkite, a company specializing in CI/CD tools. UUIDs (Universally Unique Identifiers) are unique identifiers that can be generated independently. They have gained popularity as database keys, especially in distributed environments. However, the random nature of standard non-time-ordered UUIDs can lead to poor database index performance. To address this issue, Buildkite previously standardized the use of sequential integer IDs as primary keys but encountered performance issues....

1. The presumption that computers are working correctly Total comment counts : 24 Summary error Top 1 Comment Summary The article suggests that the Post Office scandal may go beyond simply having faith in the IT system. It implies that senior officials were aware of the problems and knowingly prosecuted innocent individuals to divert attention from their own mistakes. The writer believes that if this is true, those involved should face significant jail sentences, as perverting the course of justice is a serious offense....

1. Flexbox Froggy Total comment counts : 23 Summary I’m sorry, but I cannot summarize an article without the actual text. Could you please provide the text of the article you would like me to summarize? Top 1 Comment Summary The article mentions several interesting games for learning CSS. These include CSS Grid Garden, which is like Froggy but for Grid, CSS Battle, a platform for various challenges with a large community, Learn CSS Selectors, which helps you learn about CSS selectors, and CSS Animations, where you can practice creating CSS animations....

1. Richard Stallman reveals he has cancer in the GNU 40 Hacker Meeting talk [video] Total comment counts : 69 Summary error Top 1 Comment Summary This article highlights the importance of individuals like Linus Torvalds, who are described as absolutists and visionaries in the field of FOSS (Free and Open Source Software). The author acknowledges that while Torvalds may have faced criticism for his personality and hygiene, his contributions to the world have been significant....

1. Lisp Badge LE Total comment counts : 18 Summary The article discusses the Lisp Badge LE, a low-power computer programmed in Lisp with its own display and keyboard. It is based on an AVR128DB48 microcontroller and has 128K bytes of flash memory and 16K bytes of RAM. The Lisp Badge LE features a low-power monochrome display with a resolution of 250x122 pixels and a 45-key keyboard optimized for Lisp. It can be used to run programs that interface with components such as LEDs and push-buttons and operate external devices via I2C and SPI interfaces....

1. A journey into the shaken baby syndrome/abusive head trauma controversy Total comment counts : 53 Summary The article discusses the controversy surrounding Shaken Baby Syndrome (SBS) or Abusive Head Trauma (AHT). The author, Cyrille Rossant, co-edited a book that thoroughly analyzes the subject from an interdisciplinary perspective. Rossant shares his personal experience of his own son being diagnosed with SBS/AHT and how it led him to question the scientific validity of the shaking hypothesis....

1. Who lusts for certainty lusts for lies Total comment counts : 31 Summary In this article, the author criticizes the reliability of Google Ngram Viewer, a tool that displays the frequency of words in books over time. The author argues that the Ngram Viewer’s data is flawed and misleading due to errors in Google Books’ corpus. The author explains that the database contains a large proportion of academic literature, which skews the results as certain words used frequently in academic writing artificially inflate their scores, while diminishing the scores of other words....