Podcasts about Hyperbola

Spaceflight News-- Falcon 9 Failure (spacenews.com) (spaceflightnow.com)-- Ariane 6 anomaly (europeanspaceflight.com) (spaceflightnow.com)-- Hyperbola-1 mishap (spacenews.com)Short & Sweet-- Europa Clipper faces last-minute obstacle (space.com)-- Dawn gets green light for spaceplane tests (spacenews.com)This Week in Spaceflight History-- 17 July, 1977. First launch of a complete TKS spacecraft (en.wikipedia.org) (russianspaceweb.com) (nasa.gov)-- Next week (7/23 - 7/29) in 1999: Is that a grid of dots on that asteroid?

Welcome to another episode of Astronomy Daily. I'm your host, Anna, and I'm thrilled to bring you the latest updates from the cosmos. Today we have an exciting lineup of stories that span from cutting-edge manufacturing breakthroughs to game-changing proposals in planetary science. So get comfortable, and let's embark on this journey through the latest frontiers of space and astronomy.Episode HighlightsVirgin Galactic's New Manufacturing Facility: Virgin Galactic has achieved a significant milestone with the completion of their new state-of-the-art spaceship manufacturing facility in Phoenix, Arizona. This facility is set to revolutionize the final assembly of their next-generation Delta spaceships, aiming for commercial operations by 2026.- ispace Rocket Setback: The Chinese private aerospace firm ispace faced a significant setback during the test flight of their SQX-1Y8 rocket. We'll discuss the mission, what went wrong, and the ongoing investigation to determine the cause of the failure.- Redefining Planets: A group of planetary scientists led by UCLA professor Jean-Luc Margot has proposed a new definition of what constitutes a planet. This new proposal aims to include exoplanets and provide a more precise classification system.- SpaceX Falcon 9 Starlink Launch Anomaly: SpaceX encountered a rare issue with their Falcon 9 rocket during the launch of Starlink satellites. We'll examine the implications for future missions and what this means for the Starlink satellite constellation.If you enjoyed today's episode, be sure to visit our website at astronomydaily.io, where you can catch up on all our episodes and stay updated with the latest in space and astronomy news. We love having you as part of our astronomical community, so keep tuning in for more stellar content. Until next time, clear skies and happy stargazing.For an extra special deal from our sponsor, Malwarebytes - cyber security for everyone, visit www.bitesz.com/malwarebytes ....but be quick. For a  very limited time you get 50% off. You really don't want to miss this. It's one we use and swear by. It just works!Become a supporter of this podcast: https://www.spreaker.com/podcast/astronomy-daily-the-podcast--5648921/support.

Numerous government-supported and private launch providers are in the market today, and from a cost perspective, the current leader is SpaceX. But, on November 2nd, China's iSpace launched and landed their Hyperbola-2 test stage in a successful hop that demonstrated the company's throttleable engine technology and precision landing capability.* * *Want to watch this podcast as a video? This Week in Engineering is available on engineering.com TV along with all of our other shows such as End of the Line, Designing the Future, Manufacturing the Future, and the Engineering Roundtable.

Episode: 2937 Vladimir Shukhov's hyperboloid structures: double curvature and Moscow's Shukov Radio Tower.  Today, Vladimir Shukhov's hyperboloids.

Christopher Wren, who died 300 years ago this year, is famed as the architect of St Paul's Cathedral. But he was also Gresham Professor of Astronomy, and one of the founders of a society “for the promotion of Physico-Mathematicall Experimental Learning” which became the Royal Society.This lecture explores some of Wren's mathematical work on curves including spirals and ellipses and the mathematics behind his most impressive architectural achievement – the dome of St Paul's.A lecture by Sarah Hart recorded on 7 March 2023 at David Game College, London.The transcript and downloadable versions of the lecture are available from the Gresham College website: https://www.gresham.ac.uk/watch-now/maths-wrenGresham College has offered free public lectures for over 400 years, thanks to the generosity of our supporters. There are currently over 2,500 lectures free to access. We believe that everyone should have the opportunity to learn from some of the greatest minds. To support Gresham's mission, please consider making a donation: https://gresham.ac.uk/support/Website:  https://gresham.ac.ukTwitter:  https://twitter.com/greshamcollegeFacebook: https://facebook.com/greshamcollegeInstagram: https://instagram.com/greshamcollegeSupport the show

En el episodio de hoy damos un repaso a las naves espaciales, los cohetes y las misiones científicas que están programadas para despegar en 2023 También hemos resuelto el misterio de Suecia. Gracias, Vicent: https://twitter.com/vpelech/status/1604862504873631746 Hablamos de: Polaris Dawn, Soyuz MS-23, Crew-6, Crew-7, Axiom-2, Axiom-3, Starliner, Dream Chaser, Electron, el cohete japonés H3, la Starship Super Heavy, el Vulcan Centaur, el Ariane 6, el Falcon Heavy, New Glenn, Pallas-1, Hyperbola 2, Miura 1, RFA One, LauncherOne de Virgin Orbit, el primer puerto espacial para lanzamientos de satélites en el territorio continental de la UE, Aditya-L1 de ISRO, las misiones CLPS, la sonda JUICE, Small Mission del MIT y Rocket Lab, el telescopio Euclid y las muestras de OSIRIS-REx. PARSEC es un podcast semanal sobre exploración espacial presentado por Javier Atapuerca y Matías S. Zavia. Haznos llegar tus preguntas por Twitter: @parsecpodcast@JaviAtapu@matiass Puedes escucharnos en todas las plataformas a través de parsecpodcast.com.

Conic sections – the curves made by slicing through cones at various angles – were studied by the ancient Greeks, but because of their useful properties, have many real-world uses. Planets have elliptical orbits, projectiles move in parabolas, and cooling towers have hyperbolic cross-sections. But did you know that one of the most important curves in economics is a hyperbola? Or that ellipses are used to cure kidney stones?A lecture by Sarah HartThe transcript and downloadable versions of the lecture are available from the Gresham College website:https://www.gresham.ac.uk/watch-now/conic-sectionsGresham College has been giving free public lectures since 1597. This tradition continues today with all of our five or so public lectures a week being made available for free download from our website. There are currently over 2,000 lectures free to access or download from the website.Website: http://www.gresham.ac.ukTwitter: http://twitter.com/GreshamCollegeFacebook: https://www.facebook.com/greshamcollegeInstagram: http://www.instagram.com/greshamcollege

On this episode of This Week in Linux: Linux From Scratch 11.1, openSUSE Leap 15.4 Beta, Linux Mint Debian Edition 5 Beta, FSF's New Executive Director: Zoë Kooyman, Armbian 22.02, Hyperbola 0.4, Element Call: Native Matrix VoIP, scrcpy 1.23, Firewalld 1.1, Steam Deck Effect: Apex Legends & Destiny 2, Steam Deck To Ramp Up Production, […]

On this episode of This Week in Linux: Linux From Scratch 11.1, openSUSE Leap 15.4 Beta, Linux Mint Debian Edition 5 Beta, FSF's New Executive Director: Zoë Kooyman, Armbian 22.02, Hyperbola 0.4, Element Call: Native Matrix VoIP, scrcpy 1.23, Firewalld 1.1, Steam Deck Effect: Apex Legends & Destiny 2, Steam Deck To Ramp Up Production, Humble Bundle. All that and much more on Your Weekly Source for Linux GNews! SPONSORED BY: DigitalOcean ►► https://do.co/tux2022 Bitwarden ►► https://bitwarden.com/dln TWITTER ►► https://twitter.com/michaeltunnell MASTODON ►► https://mastodon.social/@MichaelTunnell DLN COMMUNITY ►► https://destinationlinux.network/contact FRONT PAGE LINUX ►► https://frontpagelinux.com MERCH ►► https://dlnstore.com BECOME A PATRON ►► https://tuxdigital.com/contribute This Week in Linux is produced by the Destination Linux Network: https://destinationlinux.network SHOW NOTES ►► https://tuxdigital.com/twil188 Chapters: 00:00 = Welcome to TWIL 188 00:39 = Live Stream Channel Change Reminder 01:07 = Linux From Scratch 11.1 Released 03:38 = openSUSE Leap 15.4 Beta Released 05:10 = Linux Mint Debian Edition 5 Beta Released 06:52 = DigitalOcean Cloud Services ( https://do.co/tux2022 ) 08:18 = FSF's New Executive Director: Zoë Kooyman 10:52 = Armbian 22.02 Released 12:11 = Hyperbola 0.4 Released 13:42 = Bitwarden Password Manager ( https://bitwarden.com/dln ) 15:13 = Element Call: Native Matrix VoIP 18:03 = scrcpy 1.23 Released 19:05 = Firewalld 1.1 Released 20:40 = Visuex.com: Design & Digital Marketing ( https://visuex.com/dln ) 21:51 = Steam Deck Effect: Apex Legends & Destiny 2 25:17 = Steam Deck To Ramp Up Production 27:57 = Humble Heroines Bundle & More 29:19 = Outro Other Videos: 7 Reasons Why Firefox Is My Favorite Web Browser: https://youtu.be/bGTBH9yr8uw 17 KDE Plasma Features That You Didn't Know About: https://www.youtube.com/watch?v=zhPIwFC4qFs How To Use Firefox's Best Feature, Multi-Account Containers: https://youtu.be/FfN5L5zAJUo 5 Reasons Why I Use KDE Plasma: https://youtu.be/b0KA6IsO1M8 Thanks For Watching! Linux #TechNews #Podcast

"Hyperbola" and "ellipse" are geometrical curves, while "hyperbole" and "ellipsis" are rhetorical terms. At face value, it's not clear how the meanings of "hyperbola" and "ellipse" relate to those of "hyperbole" and "ellipsis", but the history of these pairs of cognates are indeed closely intertwined. To start learning a new language for free with native speakers from around the world, check out the HelloTalk app at: https://go.hellotalk.com/wordsforgranted

Hello and welcome to another episode of the Dongfang Hour China Space News Roundup! A kind reminder that we cover a lot more stories every week in our Newsletter (newsletter.dongfanghour.com).This week, we discuss:Chinese SAR Wars beginiSpace fails third launch of the solid-fueled Hyperbola-1 rocketDeep Blue Aerospace completes first hop, Expace completes assembly of Kuaizhou 1A and 11Thank you for your kind attention, we look forward to seeing you next time. Also, don't forget to follow us on YouTube, Twitter, or LinkedIn, or your local podcast source. And please give us a thumbs-up !

D Creations - Making Friends with Basic Maths 3 - Eccentricity in Mathematics- Conics- Circle, Ellipse, Parabola, Hyperbola - Fundamentals of Mathematics for everyone --- Send in a voice message: https://anchor.fm/d0531/message

Hello and welcome to another episode of the Dongfang Hour China Aero/Space News Roundup! Without further ado, the news update from the week of 7 - 13 June: iSpace unveils details on the Hyperbola-3, which is officially validated and moved to the R&D phaseEmergence Dongfang Space (“Ospace”), yet another launch companyAdditional Pictures from Tianwen-1 (orbiter shot of the lander)Shenzhen Publishes Support for Satellite Manufacturing & Long March 2D LaunchCAS Xi'an to Launch Xiamen-1 SatelliteChina Announces a MEO Broadband Constellation  Do remember to check out also our weekly newsletter which does broader coverage, going over pieces of news that we don't have time to discuss in the weekly podcast (https://www.dongfanghour.com/). Thank you for your kind attention, we look forward to seeing you next time. Also, don't forget to follow us on YouTube, Twitter, or LinkedIn, or your local podcast source. And please give us a thumbs-up! 

Hello and welcome to another episode of the Dongfang Hour China Aero/Space News Roundup! Without further ado, the news update from the week of 1 - 7 February. 1) iSpace Fails in the Second Launch of the Hyperbola-1 Chinese launch startup iSpace failed in the second launch of its Hyperbola-1 rocket earlier this week, with a Chinese language report reporting abnormalities in both the first and second stages in a launch on Monday 1 Feb. It was later pointed out that there had been apparently significant modifications to the Hyperbola-1 rocket between the first and second launch, which may have complicated the launch process. It may also have been an indication of the extent to which Chinese commercial space companies are by design nimble, needing to pivot often in order to increase their chances of survival. The launch failure is a setback for iSpace, and may create an opening for Landspace, or even Galactic Energy, to jump out in front as China’s most advanced commercial launch company. iSpace appears to still be a quite solid company, with an intact leadership team and a successful launch from 2019 under their belt. That said, the company has historically been less public about their activities than competitors such as Landspace or Expace, so it is hard to say how much trouble iSpace is or is not in following the launch failure. 2) Beijing Adds Satellite Internet to its Priorities for 2021 Actually from last week, we saw the Municipal People’s Congress of Beijing Municipality, where the city’s leaders discussed key tasks for the coming 1 year, as well as the coming 5-year plan period (2021-2025). This included many high-level targets, including 6% economic growth for the city in 2021, urban unemployment below 5%, and CPI of 3%. As reported by Chinese space industry think tank and event organizer FutureSpace, the Beijing Government’s document included emphasis on developing the digital economy, promoting high-quality development, and developing services that can be deployed across the Belt and Road. While admittedly nebulous, the inclusion of these several buzz phrases does reveal a fair amount about Beijing’s aspirations. The plans also mentioned two specific phrases related to satellite, namely developing a satellite internet industry, and accelerating development of high-end precision sensors for space/aerospace. 3) OneSpace Completes Successful Reentry Test Launch Chinese launch startup OneSpace completed a test launch of its OSX-6B on 5 February. The launch took place from Northwest China, with the test flight lasting approximately 580 seconds, reaching an altitude of 300km. Noteworthily, the rocket was called the Chongqing Liangjiang Star, an homage to the Liangjiang New Area of Chongqing. Liangjiang is a major initiative by the Chongqing Municipal Government, with significant investment going into industrial parks and other related infrastructure in Liangjiang. 4) Tianwen-1 sends back its first image of Mars We received this week the first image of Mars from Tianwen-1, a beautiful monochrome picture shot at 2.2 million km away from Mars, as the Chinese spacecraft enters its final approach. This is symbolic of Tianwen-1 entering the final phases of its trip to Mars as it gets ready to be “captured” by the Martian gravitational field. Tianwen-1 was launched on July 23 2020, in the Mars launch window of 2020 (which occurs every 26 months). It

Hello and welcome to another episode of the Dongfang Hour China Aero/Space News Roundup! Our sincere apologies for the late upload of this episode, due to technical issues. Without further ado, the news update from the week of 7-13 December.1) iSpace making progress in the development of Hyperbola 2iSpace announced that they had completed the production of the fuel tank for the Hyperbola-2 rocket. The company’s Hyperbola-2 will use liquid methalox fuel, and is China’s first common bulkhead fuel tank for rockets above 3m diameter. iSpace also completed a week earlier a series of supersonic wind tunnel tests for the vertical landing phase, a crucial moment of the flight with complex aerodynamics and instability. 2) Launch of Long March 11 with 2 CAS satellitesLast week, China saw a launch of a Long March 11 rocket, the 3rd launch of such a rocket in China in 2020. This launch received less cover overall, as it concurred with the Chang’e 5 hype that was taking place at the same time.This launch of LM-11 took place at Xichang on the 9th of December, and put into orbit 2 smallsats of the GECAM mission (aka Gravitational Wave High-energy Electromagnetic Counterpart All-Sky Monitor), and initiated by the CAS Institute of High Energy Physics in Beijing.Designated KX-08A and KX-08B, each satellite will embark a number of instruments to detect gamma/x wave bursts in the universe.3) Great article on C919 SuppliersThe Center for Strategic & International Studies (CSIS), a think-tank based in DC, published on Dec. 7 a good piece on the Chinese commercial aviation industry, and notably on the poor performance of COMAC, from both an industrial and technical point of view.According to CSIS, while China admittedly has done admirably in turning itself into a high-tech superpower in a number of industries, commercial aviation is not part of them.To justify this point, CSIS points to some of the recurring problems of COMAC, including:- The poor performance of COMAC A/C- The significant delays that the programs have experienced- The poor industrial productivity (based on the annual production rate)- The troubles with certification- And its reliance on foreign suppliersAll in all, a great piece that we recommend to our viewers, although admittedly we feel that in some areas the paper is overly pessimistic/negative about Chinese commercial aerospace.4) National Radio and Television Administration AnnouncementChina’s NRTA announced this week plans for modernization of the country’s broadcast sector. This includes several key phrases, namely “smart business”, “UltraHD/4K”, and also “Satellite internet/converged two-way services” (融合双向业务). The announcement also hits on the convergence of TV and internet access, that is, most TV can be delivered via internet access. Other points of note in the announcement included a call to build a cloud platform for satellite broadcast (建设直播卫星云平台), and to develop “two-way communications” for satellite broadcast that allow for things like online shopping, smart homes, and digitization of small towns.Overall, the announcement should be taken as an indication that China wants to modernize its relatively archaic linear broadcast industry. 5) Dongfang Hour reaches 100+ subscribers!Last but not least, the Dongfang Hour channel has reached 100+ subscribers this week, with a 10% jump in the last few days. While this remains a modest figure, we would like to address a big thanks to our viewers for their support, and hope to bring more valuable content on Chinese aerospace and tech in 2021! ---------------------------------------------Follow us on YouTube, LinkedIn, Twitter (https://twitter.com/DongFangHour), as an audio podcast, and on our official website: https://www.dongfanghour.com/

Welcome to another episode of the Dongfang Hour China Aero/Space News Roundup! This week we bring you updates on Galactic Energy, China’s maritime satcom industry and the product offerings therein, and China’s role in the regional EO market.1) Galactic Energy completed a RMB 200 million Series A funding round in September, a round that was announced last week. This is the company’s first round in ~11 months, having raised RMB 150M in Oct 2019. The company has now raised ~RMB 500 million across 4 rounds, a feat made even more remarkable by the fact that they were founded just under 3 years ago. Funding will go towards accelerating the development of the company’s Pallas-1 and Ceres-1 rockets. Galactic Energy is now quite likely one of the top 4 commercial launch companies in China, along with Landspace, iSpace, and Expace. This status in the “Big Four’ of China’s commercial launch sector was enhanced just a couple of days ago, when on November 7th 2020, Galactic Energy held the inaugural launch of its solid rocket the Ceres-1, becoming the 2nd private company in China to put a satellite into orbit after iSpace. Ceres-1, much like iSpace’s Hyperbola-1, is a small rocket with a capacity of 350 kg into LEO. While similar in propulsion technology, there are some definite slight differences between the two rockets (separation method, attitude control). Galactic Energy’s inaugural launch on the 7th was also noteworthy in that it was commercial, with the Ceres-1 rocket launching the Tianqi-11 satellite for Guodian Gaoke, a satellite manufacturer that plans to launch and operate the Tianqi constellation. 2) In the maritime space, we saw announced this week that the CASIC 2nd Academy, in partnership with the China Unicom Research Institute and the government of Zhoushan City, Zhejiang Province, completed China’s first “Low Orbit Broadband Satellite + 5G Maritime” test. While the article, which was originally published by the CASIC 2nd academy, does not explicitly mention Hongyun, the phrasing of LEO broadband satellite would almost certainly imply that the tests were using the Hongyun test satellite, launched in late 2018. Separately, as part of China’s 11/11 “Singles Day”, a huge online shopping day, we saw SinoSat release its 11/11 promotions for its Haixingtong maritime satcom service, which included 200MB of free data upon signing up, RMB 800 per year for unlimited voice. SinoSat is a ChinaSat subsidiary with focus on several high-value verticals with global requirements, i.e. maritime satcom, and has been building out a maritime satcom service for several years using satellite capacity from ChinaSat among others.3) Finally, the Asia-Oceania Group on Earth Observations (AO GEO) held a meeting in Changzhou early in the week. The event was attended by 15 countries and several international organizations. “China is playing an important role in the Asia-Oceania region, with the second highest number of remote sensing satellites in the world and its application of Earth observation shifting from experimental use to business services”, said Wang Qi’an, the director of the National Remote Sensing Center of ChinaThis has been another episode of the Dongfang Hour China Aero/Space News Roundup. If you’ve made it this far, we thank you for your kind attention, and look forward to seeing you next time! ---------------------------------------------Follow us on YouTube, LinkedIn, Twitter, and on our official website: https://www.dongfanghour.com/

This week, we bring you updates on China’s Earth Observation sector, discussions on satellite 5G/6G and IoT, but first, part 2 of our summary of the 6th annual China Commercial Aerospace Forum, held in Wuhan 2 weeks ago. 6th China Commercial Aerospace Forum Summary (part 2/2): iSpace: One of the leading private launch companies in China, company VP Huo Jia at CCAF discussed their plans for Hyperbola-2, as well as post-Hyperbola-2 projects:Hyperbola-2: 100 km hopping experiments to test the landing/engine throttling/control capabilities by end of 2020; and then full orbital test of Hyperbola-2 if hopping tests are conclusive.Hyperbola-3: a medium lift rocket, which can be turned to heavy lift with 2 or 4 side boosters. Development of the Jiaodian-2 heavy thrust methalox engine (100 tons thrust).Zhongke Aerospace (aka CAS Space): technical discussion on launch vehicle control, also indicated that the first launch of ZK-1 would be in september 2021.EO companies with an increasing vertical approach to the industry: A number of EO companies have seen major traction over the past several years, and several of them spoke at the CCAF. Several EO companies are vertically integrating across different parts of the value chain.Related to EO, pretty good article published tby Satellite & Network (卫星与网络) about investment into the EO sector. It mentions that the ‘midstream’ services in EO are most popular for private investment, partly because compared to the other two main types of space applications (comms and satnav), EO is “more open to commercial enterprise and with stronger commercial flexibility”. Non-CCAF newsYaogan launch: a group of 3x Yaogan satellites were launched from Xichang this week. Yaogan is one of China’s largest EO initiatives, with the satellites believed to be focused on military applications. Piggy backing the Yaogan launch was the Tianqi-6 satellite of the Guodian Gaoke's 38-satellite IoT constellation.Other ConferencesChina Satellite Conference: The conference was standing room only, with a sold-out house at the Nikko Hotel in Beijing. Interesting takeaway was the sub-forum on Satellite 5G and 6G, which included CETC and could be an indication of CETC pushing more into space as a way of expanding their business.China Industrial IoT + 5G Forum Wuhan: at the forum, MIIT discussed the idea of industrial IoT + 5G. Ms Han Xia, Director of Information and Communication Administration Bureau of MIIT, mentioned 3 challenges faced by rollout of Industrial IoT:Uneven levels of digitization among enterprises. Insufficient industrial support capacity for things like gateways, terminals, etc.Integrated applications still need to be deepened/improvedA related article mentioned that in China, there have been more than 800 “Industrial IoT + 5G” projects commenced thus far, with a total investment of RMB 3.4 billion.

Host Chris O'Regan chats to James Roberts of Nebula-Design about the design and development of their top down scrolling shooter, Iridium. Iridium, a game that borrows from the past while exploiting current design sensibilities, looks to successfully convey the sense of achievement that skillfully navigating through a challenging shmup can give the player. http://media.blubrry.com/caneandrinse/caneandrinse.com/sausage/TSF_Episode299.mp3   Music featured in this podcast:1. Digital Rift (Tejaswi Remix) - Can be bought from here2. Elemental Energy by m4rt3z - Can be downloaded from here3. Hyperbola by Tejaswi - Can be downloaded from hereThe Sausage Factory 299 was edited by Chris O'Regan

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Hyperbola Developer interview, why you should migrate from Linux to BSD, FreeBSD is an amazing OS, improving the ptrace(2) API in LLVM 10, First FreeBSD conference in Australia, and a guide to containers on FreeNAS. Headlines FreeBSD is an amazing operating System (https://www.unixsheikh.com/articles/freebsd-is-an-amazing-operating-system.html) Update 2020-01-21: Since I wrote this article it got posted on Hacker News, Reddit and Lobster, and a few people have emailed me with comments. I have updated the article with comments where I have found it needed. As an important side note I would like to point out that I am not a FreeBSD developer, there may be things going on in the FreeBSD world that I know absolutely nothing about. I am also not glued to the FreeBSD developer mailing lists. I am not a FreeBSD "fanboy". I have been using GNU/Linux a ton more for the past two decades than FreeBSD, mainly due to hardware incompatibility (lacking or buggy drivers), and I love both Debian GNU/Linux and Arch Linux just as much as FreeBSD. However, I am concerned about the development of GNU/Linux as of late. Also this article is not about me trying to make anyone switch from something else to FreeBSD. It's about why I like FreeBSD and that I recommend you try it out if you're into messing with operating systems. I think the year was late 1999 or mid 2000 when I one day was browsing computer books at my favorite bookshop and I discovered the book The Complete FreeBSD third edition from 1999 by Greg Lehey. With the book came 4 CD Roms with FreeBSD 3.3. I had already familiarized myself with GNU/Linux in 1998, and I was in the process of migrating every server and desktop operating system away from Microsoft Windows, both at home and at my company, to GNU/Linux, initially Red Hat Linux and then later Debian GNU/Linux, which eventually became my favorite GNU/Linux distribution for many years. When I first saw The Complete FreeBSD book by Greg Lehey I remember noticing the text on the front page that said, "The Free Version of Berkeley UNIX" and "Rock Solid Stability", and I was immediately intrigued! What was that all about? A free UNIX operating system! And rock solid stability? That sounded amazing. Hyperbola Dev Interview (https://itsfoss.com/hyperbola-linux-bsd/) In late December 2019, Hyperbola announced that they would be making major changes to their project. They have decided to drop the Linux kernel in favor of forking the OpenBSD kernel. This announcement only came months after Project Trident announced that they were going in the opposite direction (from BSD to Linux). Hyperbola also plans to replace all software that is not GPL v3 compliant with new versions that are. To get more insight into the future of their new project, I interviewed Andre, co-founder of Hyperbola. News Roundup Improving the ptrace(2) API and preparing for LLVM-10.0 (https://blog.netbsd.org/tnf/entry/improving_the_ptrace_2_api) This month I have improved the NetBSD ptrace(2) API, removing one legacy interface with a few flaws and replacing it with two new calls with new features, and removing technical debt. As LLVM 10.0 is branching now soon (Jan 15th 2020), I worked on proper support of the LLVM features for NetBSD 9.0 (today RC1) and NetBSD HEAD (future 10.0). The first FreeBSD conference in Australia (https://rubenerd.com/the-first-freebsd-conference-in-australia/) FreeBSD has existed as an operating system, project, and foundation for more than twenty years, and its earlier incantations have exited for far longer. The old guard have been developing code, porting software, and writing documentation for longer than I’ve existed. I’ve been using it for more than a decade for personal projects, and professionally for half that time. While there are many prominent Australian FreeBSD contributors, sysadmins, and users, we’ve always had to venture overseas for conferences. We’re always told Australians are among the most ardent travellers, but I always wondered if we could do a domestic event as well. And on Tuesday, we did! Deb Goodkin and the FreeBSD Foundation graciously organised and chaired a dedicated FreeBSD miniconf at the long-running linux.conf.au event held each year in a different city in Australia and New Zealand. A practical guide to containers on FreeNAS for a depraved psychopath (https://medium.com/@andoriyu/a-practical-guide-to-containers-on-freenas-for-a-depraved-psychopath-c212203c0394) This is a simple write-up to setup Docker on FreeNAS 11 or FreeBSD 11. But muh jails? You know that jails are dope and you know that jails are dope, yet no one else knows it. So here we are stuck with docker. Two years ago I would be the last person to recommend using docker, but a whole lot of things has changes past years… So jails are dead then? No, jails are still dope, but jails lack tools to manage them. Yes, there are a few tools, but they meant for hard-core FreeBSD users who used to suffering. Docker allows you to run applications without deep knowledge of application you’re running. It will also allow you to run applications that are not ported to FreeBSD. Why you should migrate everything from Linux to BSD (https://www.unixsheikh.com/articles/why-you-should-migrate-everything-from-linux-to-bsd.html) As an operating system GNU/Linux has become a real mess because of the fragmented nature of the project, the bloatware in the kernel, and because of the jerking around by commercial interests. Response Should you migrate from Linux to BSD? It depends. (https://fediverse.blog/~/AllGoodThings/should-you-migrate-from-linux-to-bsd-it-depends) Beastie Bits Using the OpenBSD ports tree with dedicated users (https://dataswamp.org/~solene/2020-01-11-privsep.html) broot on FreeBSD (https://vermaden.wordpress.com/2020/01/10/run-broot-on-freebsd/) A Trip down Memory Lane (https://svnweb.freebsd.org/base/head/share/misc/bsd-family-tree?view=co) Running syslog-ng in BastilleBSD (https://www.syslog-ng.com/community/b/blog/posts/running-syslog-ng-in-bastillebsd) NASA : Using Software Packages in pkgsrc (https://www.nas.nasa.gov/hecc/support/kb/using-software-packages-in-pkgsrc_493.html) Feedback/Questions All of our questions this week were pretty technical in nature so I'm going to save those for the next episode so Allan can weigh in on them, since if we cover them now we're basically going to be deferring to Allan anyway. Send questions, comments, show ideas/topics, or stories you want mentioned on the show to feedback@bsdnow.tv (mailto:feedback@bsdnow.tv) Your browser does not support the HTML5 video tag.

Announcing HyperbolaBSD, IPFW In-Kernel NAT setup on FreeBSD, Wayland and WebRTC enabled for NetBSD 9/Linux, LLDB Threading support ready for mainline, OpenSSH U2F/FIDO support in base, Dragonfly drm/i915: Update, and more. Headlines HyperbolaBSD Announcement (https://www.hyperbola.info/news/announcing-hyperbolabsd-roadmap/) Due to the Linux kernel rapidly proceeding down an unstable path, we are planning on implementing a completely new OS derived from several BSD implementations. This was not an easy decision to make, but we wish to use our time and resources to create a viable alternative to the current operating system trends which are actively seeking to undermine user choice and freedom. This will not be a "distro", but a hard fork of the OpenBSD kernel and userspace including new code written under GPLv3 and LGPLv3 to replace GPL-incompatible parts and non-free ones. Reasons for this include: Linux kernel forcing adaption of DRM, including HDCP. Linux kernel proposed usage of Rust (which contains freedom flaws and a centralized code repository that is more prone to cyber attack and generally requires internet access to use.) Linux kernel being written without security and in mind. (KSPP is basically a dead project and Grsec is no longer free software) Many GNU userspace and core utils are all forcing adaption of features without build time options to disable them. E.g. (PulseAudio / SystemD / Rust / Java as forced dependencies) As such, we will continue to support the Milky Way branch until 2022 when our legacy Linux-libre kernel reaches End of Life. Future versions of Hyperbola will be using HyperbolaBSD which will have the new kernel, userspace and not be ABI compatible with previous versions. HyperbolaBSD is intended to be modular and minimalist so other projects will be able to re-use the code under free license. Forum Post (https://forums.hyperbola.info/viewtopic.php?id=315) A simple IPFW In-Kernel NAT setup on FreeBSD (https://www.neelc.org/posts/freebsd-ipfw-nat/) After graduating college, I am moving from Brooklyn, NY to Redmond, WA (guess where I got a job). I always wanted to re-do my OPNsense firewall (currently a HP T730) with stock FreeBSD and IPFW’s in-kernel NAT. Why IPFW? Benchmarks have shown IPFW to be faster which is especially good for my Tor relay, and because I can! However, one downside of IPFW is less documentation vs PF, even less without natd (which we’re not using), and this took me time to figure this out. But since my T730 is already packed, I am testing this on a old PC with two NICs, and my laptop [1] as a client with an USB-to-Ethernet adapter. News Roundup HEADS UP: Wayland and WebRTC enabled for NetBSD 9/Linux (https://mail-index.netbsd.org/pkgsrc-users/2020/01/05/msg030124.html) This is just a heads up that the Wayland option is now turned on by default for NetBSD 9 and Linux in cases where it peacefully coexists with X11. Right now, this effects the following packages: graphics/MesaLib devel/SDL2 www/webkit-gtk x11/gtk3 The WebRTC option has also been enabled by default on NetBSD 9 for two Firefox versions: www/firefox, www/firefox68 Please keep me informed of any fallout. Hopefully, there will be none. If you want to try out Wayland-related things on NetBSD 9, wm/velox/MESSAGE may be interesting for you. LLDB Threading support now ready for mainline (https://blog.netbsd.org/tnf/entry/lldb_threading_support_now_ready) Upstream describes LLDB as a next generation, high-performance debugger. It is built on top of LLVM/Clang toolchain, and features great integration with it. At the moment, it primarily supports debugging C, C++ and ObjC code, and there is interest in extending it to more languages. In February, I have started working on LLDB, as contracted by the NetBSD Foundation. So far I've been working on reenabling continuous integration, squashing bugs, improving NetBSD core file support, extending NetBSD's ptrace interface to cover more register types and fix compat32 issues and fixing watchpoint support. Then, I've started working on improving thread support which is taking longer than expected. You can read more about that in my September 2019 report. So far the number of issues uncovered while enabling proper threading support has stopped me from merging the work-in-progress patches. However, I've finally reached the point where I believe that the current work can be merged and the remaining problems can be resolved afterwards. More on that and other LLVM-related events happening during the last month in this report. OpenSSH U2F/FIDO support in base (https://www.undeadly.org/cgi?action=article;sid=20191115064850) Hardware backed keys can be generated using "ssh-keygen -t ecdsa-sk" (or "ed25519-sk" if your token supports it). Many tokens require to be touched/tapped to confirm this step. You'll get a public/private keypair back as usual, except in this case, the private key file does not contain a highly-sensitive private key but instead holds a "key handle" that is used by the security key to derive the real private key at signing time. So, stealing a copy of the private key file without also stealing your security key (or access to it) should not give the attacker anything. drm/i915: Update to Linux 4.8.17 (http://lists.dragonflybsd.org/pipermail/commits/2019-December/720257.html) drm/i915: Update to Linux 4.8.17 Broxton, Valleyview and Cherryview support improvements Broadwell and Gen9/Skylake support improvements Broadwell brightness fixes from OpenBSD Atomic modesetting improvements Various bug fixes and performance enhancements Beastie Bits Visual Studio Code port for FreeBSD (https://github.com/tagattie/FreeBSD-VSCode) OpenBSD syscall call-from verification (https://marc.info/?l=openbsd-tech&m=157488907117170&w=2) Peertube on OpenBSD (https://www.22decembre.eu/en/2019/12/09/peertube-14-openbsd/) Fuzzing Filesystems on NetBSD via AFL+KCOV by Maciej Grochowski (https://www.youtube.com/watch?v=bbNCqFdQEyk&feature=youtu.be) Twitter Bot for Prop65 (https://twitter.com/prop65bot/status/1199003319307558912) Interactive vim tutorial (https://www.openvim.com/) First BSD user group meeting in Hamilton, February 11, 2020 18:30 - 21:00, Boston Pizza on Upper James St (http://studybsd.com/) *** Feedback/Questions Samir - cgit (http://dpaste.com/2B22M24#wrap) Russell - R (http://dpaste.com/0J5TYY0#wrap) Wolfgang - Question (http://dpaste.com/3MQAH27#wrap) Send questions, comments, show ideas/topics, or stories you want mentioned on the show to feedback@bsdnow.tv (mailto:feedback@bsdnow.tv) Your browser does not support the HTML5 video tag.

DragonFlyBSD vs. FreeBSD vs. Linux benchmark on Ryzen 7, JFK Presidential Library chooses TrueNAS for digital archives, FreeBSD 12.1-beta is available, cool but obscure X11 tools, vBSDcon trip report, Project Trident 12-U7 is available, a couple new Unix artifacts, and more. Headlines DragonFlyBSD 5.6 vs. FreeBSD 12 vs. Linux - Ryzen 7 3700X (https://www.phoronix.com/scan.php?page=article&item=bsd-linux-3700x) For those wondering how well FreeBSD and DragonFlyBSD are handling AMD's new Ryzen 3000 series desktop processors, here are some benchmarks on a Ryzen 7 3700X with MSI MEG X570 GODLIKE where both of these popular BSD operating systems were working out-of-the-box. For some fun mid-week benchmarking, here are those results of FreeBSD 12.0 and DragonFlyBSD 5.6.2 up against openSUSE Tumbleweed and Ubuntu 19.04. Back in July I looked at FreeBSD 12 on the Ryzen 9 3900X but at that time at least DragonFlyBSD had troubles booting on that system. When trying out the Ryzen 7 3700X + MSI GODLIKE X570 motherboard on the latest BIOS, everything "just worked" without any compatibility issues for either of these BSDs. We've been eager to see how well DragonFlyBSD is performing on these new AMD Zen 2 CPUs with DragonFlyBSD lead developer Matthew Dillon having publicly expressed being impressed by the new AMD Ryzen 3000 series CPUs. For comparison to those BSDs, Ubuntu 19.04 and openSUSE Tumbleweed were tested on the same hardware in their out-of-the-box configurations. While Clear Linux is normally the fastest, on this system Clear's power management defaults had caused issues in being unable to detect the Samsung 970 EVO Plus NVMe SSD used for testing and so we left it out this round. All of the hardware was the same throughout testing as were the BIOS settings and running the Ryzen 7 3700X at stock speeds. (Any differences in the reported hardware for the system table just come down to differences in what is exposed by each OS for reporting.) All of the BSD/Linux benchmarks on this eight core / sixteen thread processor were run via the Phoronix Test Suite. In the case of FreeBSD 12.0, we benchmarked both with its default LLVM Clang 6.0 compiler as well as with GCC 9.1 so that it would match the GCC compiler being the default on the other operating systems under test. JFK Presidential Library Chooses iXsystems TrueNAS to Preserve Precious Digital Archives (https://www.ixsystems.com/blog/jfk-presidential-library-pr/) iXsystems is honored to have the TrueNAS® M-Series unified storage selected to store, serve, and protect the entire digital archive for the John F. Kennedy Library Foundation. This is in support of the collection at the John F. Kennedy Presidential Library and Museum (JFK Library). Over the next several years, the Foundation hopes to grow the digital collection from hundreds of terabytes today to cover much more of the Archives at the Kennedy Library. Overall there is a total of 25 million documents, audio recordings, photos, and videos once the project is complete. Having first deployed the TrueNAS M50-HA earlier in 2019, the JFK Library has now completed the migration of its existing digital collection and is now in the process of digitizing much of the rest of its vast collection. Not only is the catalog of material vast, it is also diverse, with files being copied to the storage system from a variety of sources in numerous file types. To achieve this ambitious goal, the library required a high-end NAS system capable of sharing with a variety of systems throughout the digitization process. The digital archive will be served from the TrueNAS M50 and made available to both in-person and online visitors. With precious material and information comes robust demands. The highly-available TrueNAS M-Series has multiple layers of protection to help keep data safe, including data scrubs, checksums, unlimited snapshots, replication, and more. TrueNAS is also inherently scalable with data shares only limited by the number of drives connected to the pool. Perfect for archival storage, the deployed TrueNAS M50 will grow with the library’s content, easily expanding its storage capacity over time as needed. Supporting a variety of protocols, multi-petabyte scalability in a single share, and anytime, uninterrupted capacity expansion, the TrueNAS M-Series ticked all the right boxes. Youtube Video (https://www.youtube.com/watch?v=8rFjH5-0Fiw) News Roundup FreeBSD 12.1-beta available (https://www.phoronix.com/scan.php?page=news_item&px=FreeBSD-12.1-Beta-Released) FreeBSD 12.0 is already approaching one year old while FreeBSD 12.1 is now on the way as the next installment with various bug/security fixes and other alterations to this BSD operating system. FreeBSD 12.1 has many security/bug fixes throughout, no longer enables "-Werror" by default as a compiler flag (Update: This change is just for the GCC 4.2 compiler), has imported BearSSL into the FreeBSD base system as a lightweight TLS/SSL implementation, bzip2recover has been added, and a variety of mostly lower-level changes. More details can be found via the in-progress release notes. For those with time to test this weekend, FreeBSD 12.1 Beta 1 is available for all prominent architectures. The FreeBSD release team is planning for at least another beta or two and around three release candidates. If all goes well, FreeBSD 12.1 will be out in early November. Announcement Link (https://lists.freebsd.org/pipermail/freebsd-stable/2019-September/091533.html) Cool, but obscure X11 tools. More suggestions in the source link (https://cyber.dabamos.de/unix/x11/) ASClock Free42 FSV2 GLXGears GMixer GVIM Micropolis Sunclock Ted TiEmu X026 X48 XAbacus XAntfarm XArchiver XASCII XBiff XBill XBoard XCalc XCalendar XCHM XChomp XClipboard XClock XClock/Cat Clock XColorSel XConsole XDiary XEarth XEdit Xev XEyes XFontSel XGalaga XInvaders 3D XKill XLennart XLoad XLock XLogo XMahjongg XMan XMessage XmGrace XMixer XmMix XMore XMosaic XMOTD XMountains XNeko XOdometer XOSView Xplore XPostIt XRoach XScreenSaver XSnow XSpread XTerm XTide Xv Xvkbd XWPE XZoom vBSDCon 2019 trip report from iXSystems (https://www.ixsystems.com/blog/vbsdcon-2019/) The fourth biennial vBSDCon was held in Reston, VA on September 5th through 7th and attracted attendees and presenters from not only the Washington, DC area, but also Canada, Germany, Kenya, and beyond. While MeetBSD caters to Silicon Valley BSD enthusiasts on even years, vBSDcon caters to East Coast and DC area enthusiasts on odd years. Verisign was again the key sponsor of vBSDcon 2019 but this year made a conscious effort to entrust the organization of the event to a team of community members led by Dan Langille, who you probably know as the lead BSDCan organizer. The result of this shift was a low key but professional event that fostered great conversation and brainstorming at every turn. Project Trident 12-U7 now available (https://project-trident.org/post/2019-09-21_stable12-u7_available/) Package Summary New Packages: 130 Deleted Packages: 72 Updated Packages: 865 Stable ISO - https://pkg.project-trident.org/iso/stable/Trident-x64-TOS-12-U7-20190920.iso A Couple new Unix Artifacts (https://minnie.tuhs.org//pipermail/tuhs/2019-September/018685.html) I fear we're drifting a bit here and the S/N ratio is dropping a bit w.r.t the actual history of Unix. Please no more on the relative merits of version control systems or alternative text processing systems. So I'll try to distract you by saying this. I'm sitting on two artifacts that have recently been given to me: by two large organisations of great significance to Unix history who want me to keep "mum" about them as they are going to make announcements about them soon* and I am going slowly crazy as I wait for them to be offically released. Now you have a new topic to talk about :-) Cheers, Warren * for some definition of "soon" Beastie Bits NetBSD machines at Open Source Conference 2019 Hiroshima (https://mail-index.netbsd.org/netbsd-advocacy/2019/09/16/msg000813.html) Hyperbola a GNU/Linux OS is using OpenBSD's Xenocara (https://www.hyperbola.info/news/end-of-xorg-support/) Talos is looking for a FreeBSD Engineer (https://www.talosintelligence.com/careers/freebsd_engineer) GitHub - dylanaraps/pure-sh-bible: A collection of pure POSIX sh alternatives to external processes. (https://github.com/dylanaraps/pure-sh-bible) dsynth: you’re building it (https://www.dragonflydigest.com/2019/09/23/23523.html) Percy Ludgate, the missing link between Babbage’s machine and everything else (http://lists.sigcis.org/pipermail/members-sigcis.org/2019-September/001606.html) Feedback/Questions Bruce - Down the expect rabbithole (http://dpaste.com/147HGP3#wrap) Bruce - Expect (update) (http://dpaste.com/37MNVSW#wrap) David - Netgraph answer (http://dpaste.com/2SE1YSE) Mason - Beeps? (http://dpaste.com/00KKXJM) Send questions, comments, show ideas/topics, or stories you want mentioned on the show to feedback@bsdnow.tv (mailto:feedback@bsdnow.tv) Your browser does not support the HTML5 video tag.

Played from 02:00 to 04:00 at the underground club Zinger in Saint Petersburg.Some good memories to remember.

Classic rave party from Andy Balance!

We solve simultaneously the equations of a plane and a cone and show that the intersections are circles, parabolas, ellipses, hyperbolas, straight lines or just the origin.

Basic Science Clinic by Steve Morgan & Sophie Connolly If you would be a real seeker after truth, you must at least once in your life doubt, as far as possible, all things. Rene Descartes Welcome to Basic Science Clinic, this is the 3rd Crit Think podcast on mathematics. Having examined the origin of maths and its influence on the enlightenment explosion of rationality and empiricism, we now turn our attention to extracting the ways maths turns up in our critical care practice. Is it essential to know the maths? Thou doth protest too much methinks. Think of these relationships as the grammatical fibre to your conceptual fabric. It’s like totally, you know like, easy to make yourself understood without no grammar, do ya know wanna I mean…like? However, understanding maths as the language of science with grammatical and linguistic accuracy changes your perception of the relationships between the physiological variables that you are attempting to dial up in your practice. Go deeper, understand better, effortlessly recall.   In this pod we’ll cover: Basic mathematical relationships Relations Vs Functions Classification of mathematical models Important relations in critical care Word of the Day: Peripatetic; 1. adjective; itinerant, walking or traveling about; 2. noun; an adherent of Aristotelianism.  

Внимание Много Баса =) Попросили сделать гостевой микс, т.к. проект победил в конкурсе миксов! Получился во такой, на мой взгляд экстремальный и интересный тематический микс. Всем новогоднего настроения, приятного слушания, будьте здоровы!!! 

We solve simultaneously the equations of a plane and a cone and show that the intersections are circles, parabolas, ellipses, hyperbolas, straight lines or just the origin.

We demonstrate that the equation y = 1/x transforms to standard form for an hyperbola under rotation of the coordinate axes by 45 degrees.

Relations, Set rules & symbols, Sets of numbers, Sets & intervals, Functions, Relations, Function notation, Hybrid functions, Hyperbola, Truncus, Square root, Circles, Inverse functions

The mathematics behind the curves created with a torch beam

Transcript -- Using the shadow’s path to register the passing of time.

Using the shadow’s path to register the passing of time.

Transcript -- The mathematics behind the curves created with a torch beam

Transcript -- The mathematics behind the curves created with a torch beam

Transcript -- Using the shadow’s path to register the passing of time.

Using the shadow’s path to register the passing of time.

The mathematics behind the curves created with a torch beam

Flight Technical Editor and Hyperbola blogger Rob Coppinger meets the newly-introduced ESA Astronauts during a reception at the Paris Air Show.