Hacker Public Radio

Hacker Public Radio

Hacker Public Radio is an podcast that releases shows every weekday Monday through Friday. Our shows are produced by the community (you) and can be on any topic that are of interest to hackers and hobbyists.

Episodes

  1. 9H AGO

    HPR4580: The First Doctor, Part 4

    This show has been flagged as Clean by the host. This is a further look at the stories of the First Doctor, portrayed by William Hartnell, during the 1960s. The First Doctor, Part 4 Galaxy 4 This science fiction story is focused on the idea of not judging a book by its cover. The Tardis lands on a deserted, dying planet. They see a funny looking robot that Vicki calls a “Chumbley”. Then another one appears, and they investigate, but are rescued by three beautiful women who tell them they were in great danger, and take the three travelers back to their ship, where they meet the leader, Maaga, another beautiful woman. But somehow these women are odd and cold. They tell of how they met another ship from a evil race, the Rill, and that in a space battle the ships damaged each other and landed on this planet. Then later the travelers meet the Rill, who initially refuse to reveal their appearance because it would frighten the humans. Turns out they were very alien in appearance, but not at all evil, and it was the beautiful women who were evil. Mission to the Unknown This short little story takes place on the planet Kembel, and agents from Earth realize that the Daleks are here, and up to no good. This is really a prequel to The Daleks’ Master Plan, and is notable as the only Doctor Who story in which none of the regular cast appears. The reason is that this is an extra episode slot given to the Doctor Who team late in the day, and the regular cast were already given vacation time off. So it is best to take this as Episode 0 of The Dalek’s Master Plan, not as a stand-alone story. The original story has been lost, like so many episodes of early Doctor Who, but a very nice version was done by the University of Central Lancashire, and you can view it on YouTube. It is introduced by Edward de Souza, who played Marc Cory in the original, and is worth a look. They really did a good job. The Myth Makers This is another “historical” story, though instead of verified history it is historical legends at play here, in the form of the Seige of Troy by the Greeks. So you have all of the Homeric cast here: Achilles, Priam, Hector, Odysseus. The Doctor is taken for a God by Achilles, though Odysseus has his doubts. Vicki is captured by the Trojans and taken to Troy, calls herself Cressida, and is taken for a Goddess. Steven goes to Troy to try and free her, but is seen as a Greek, and so Vicki is now suspect. She falls in love with a son of Priam named Troilus, and you think something might happen here, particularly if you are familiar with play of Shakespeare called Troilus and Cressida. This story only has faint echoes of the play, preserving that Cressida is Greek and Troilus is Trojan. In this case it is Cressida staying with Troilus, so instead going back to the Tardis Vicki is now out. One more companion gone. This marked the departure of Verity Lambert as producer, and she was replaced by John Wiles. Wiles tried to implement changes, such as making the show a bit darker, but ran into opposition from both Hartnell and BBC Management, and resigned after producing four stories ( The Myth Makers through The Ark). And the popularity of other SF shows on television made a move to more SF and less history desirable. And as for Hartnell’s opposition, it is notable that he had become quite identified with the role of The Doctor and was very proprietorial with it. This would come to pose problems later as his health declined. The Daleks’ Master Plan This story arc takes twelve episodes, or thirteen if you add Mission to the Unknown, as you indeed should. The reason for such a long story arc is that Sir Huw Wheldon, the Director-General of the BBC at that time wanted a “monster length” Dalek story because his mother was a big Dalek fan. And this story has a lot going for it. The length means that you can do more character development. The story starts out with Steven recovering from a sword-thrust during the fall of Troy, and being attended by Katarina, a Trojan maiden, who is now in the Tardis. They arrive on the planet Kembel, and meet with Space Special Security agent Bret Vyon, played by Nicholas Courtney, who in a few years would become the beloved Brigadier Lethbridge-Stewart. Vyon tries to force the Doctor to take him to Earth so he can warn the planet, but the Doctor recognizes the Daleks and wants to find out more about their plans. And this brings us to one the most evil villains in Doctor Who, Mavic Chen. You see, the Daleks have assembled a group of villainous aliens to join together in conquering the Earth, and Mavic Chen is part of the group. He is also the idolized Guardian of the Solar System. So he is a traitor! Katarina, the Trojan maiden, sacrifices herself to save the others from a convict they meet on a prison planet. Another wonderful character is Sara Kingdom (played by Peggy Marsh), head of Space Special Security, who has been told by Mavic Chen that Vyon and the others are traitors, and who kills Vyon, who is in fact her brother! But they manage to convince her that Chen is the real traitor, and she joins them. In the middle of this story arc Christmas happened, and this resulted in the most absurd episode ever of Doctor Who, called The Feast of Steven, capped by the Doctor breaking the fourth wall. The episode is now among the missing. but you can find reconstructions on YouTube if you want to see the absurdity of it. And there is a re-appearance of The Meddling Monk. This is a sprawling story, but overall worth a look. Mavic Chen, played by Kevin Stoney, is delightfully evil, and Stoney would return to play another villain in the Troughton story The Invasion. and it is interesting to see Nicholas Courtney before he got the role he would always be identified with. Doctor Who would not do anything this large again until _The Flux_ in 2021, and frankly this story makes more sense. The Massacre of St. Bartholomew’s Eve You will often see this as simply The Massacre, which is fine since there is no other story with a similar title. And after that massive science fiction story, another historical story. This involves the true story of Protestants in France being massacred by the Catholics, and the main feature worth calling our here is that William Hartnell plays two roles in this story. He is the Doctor, of course, but also the Abbott of Amboise, a leader among the Catholics looking to rid France of the Protestants. This idea of playing two parts became even more nicely done by Patrick Troughton later in Enemy of the World. In any case, this leads to confusion by Steven who thinks the Abbott is actually the Doctor. In the story a servant girl named Anna Chaplette is rescued, and this opens up the interesting possibility that she is the ancestor of Dodo (i.e. Dorothea) Chaplet, a companion who appears at the end. She witnesses a car crash, and barges into the Tardis thinking she can call the police. While the novelty of Hartnell playing two parts may stand out on first look, this story is really a showcase for Peter Purves, in his role of Steven Taylor. Because Hartnell is not on screen very much, Purves really has to carry the plot, and does so admirably. Hartnell was on vacation when the second episode was filmed, and so didn’t appear at all. And his health problems were beginning cause problems which contributed to this situation. He was having a lot of trouble with remembering his lines, which is a real problem for an actor. He was not that old by current standards, as he was 58 when this story was produced, and as I am 73 as I write this, 58 seems more like late youth to me. The Ark The Tardis materializes on a spaceship in the far future. It is carrying the future of the human race to a new planet, Refusis 2, because the Earth is falling into the sun. But it also has an odd race called the Monoids, who have one eye. They are an alien race who came to Earth when their own planet was dying, and now they serve the humans. Unfortunately, the Tardis crew carries germs for which humans and Monoids on the Ark have no immunity, and sickness breaks out. One faction wants to kill the Doctor and his companions, but instead the Doctor finds a cure for the disease, and they leave on the Tardis. Then the Tardis materializes back on the Ark, but they discover that hundreds of years have passed. The Monoids have rebelled and taken over, and now the humans serve them. As the old saying has it, be kind to those you meet on the way up, for you will meet them again on the way down. Links: https://en.wikipedia.org/wiki/Galaxy_4 https://en.wikipedia.org/wiki/Mission_to_the_Unknown https://www.youtube.com/watch?v=NW8yk-m5Ig8 https://en.wikipedia.org/wiki/The_Myth_Makers https://en.wikipedia.org/wiki/Troilus_and_Cressida https://guide.doctorwhonews.net/person.php?name=JohnWiles https://en.wikipedia.org/wiki/The_Daleks%27_Master_Plan https://www.imdb.com/title/tt0785302/ https://tardis.fandom.com/wiki/The_Flux https://en.wikipedia.org/wiki/The_Massacre_(Doctor_Who) https://en.wikipedia.org/wiki/The_Ark_(Doctor_Who) https://www.palain.com/science-fiction/intro-to-doctor-who/the-first-doctor-part-4/ Provide feedback on this episode.

  2. 1D AGO

    HPR4579: Happy by shower

    This show has been flagged as Clean by the host. Hello, dear beloveds. Here with you, at HPR: Antoine. The message of this episode is the following: life comes in waves. ~~ Circumstances are volatile. For the majority of them, we have no control of what happens. Things happen, in climate events, in health (ours or another one’s), financially, emotionally. Many depend on choices that others make, or outside events that we, as humans, cannot trace cause-and-effect route — hamla ! [interjection], we can’t even tell the weather precisely yet. Our emotions are subject to the same phenomenon. As far as they are tied to that events, our feelings of sadness, of relief, will come and go, also, as ~~ waves! Unpredictable, impetuous, imprecise. It ruins the health. Do you listen to your heartbeat? It can be 80 or 110 bpm from one second to another by the choices of your thinking, without you moving a muscle. A basketball player can be a better player only training in his mind, in imagination, in comparison to one that does not practice al all. Your mind, and by it we mean now the choices of your thinking, have influence in your muscular abilities and in your body chemicals. These regulate basically the entirety of your sensations, and contribute to your health or lack of it. So, when one believes, he have a stable point in which to be firm. Even though the circumstances are waves, he is not floating on them. He’s anchored. That’s why, if firm (true) in this faith, he’s more stable and happier than an ordinary person, one that has no hope at all, but lives by what the world has to offer today. In summary, the instability is not beneficial. And we are taken to this thinking, for the pursuit of something we believe is worth it, and may be not. Then, when someone presents something we “need”, that may not be the case. We can think. Then, we choose: what we live for? How I choose to feel, and behave, because or in spite of what happens around and around? and around. No matter the point of the universe one person has reached, physically or perceptually, that does not define him for eternity. Because it is not in that past, it is happening right now, has not ended, yeah? Now, a point of experience of me. I have days of very low mood and uncertainty. The feeling of serving for absolutely nothing. (Even in good days, that may feel true, but does not define me as when I go to the ground on this thinking.) I have been said things like this, from people I value, or valued then, more than family of blood. These are days I eat not healthily, I don’t have the appropriate care of my body, I don’t shower. Until recently, those were days of much suffering. But I perceived that, in the next day of each of these days, in keeping trusting the hope I have, I can have a night of rest. I can wake up and take a shower, and after all start anew, having lived the bad experience the day prior as an experience that, at that moment, I only wanted to go away as soon as possible. But after going through the entirety of it, on its full duration, I would not replace this feeling-and-learning experience by anything else. Someone has said that anguish is what makes us do something. In comfort, we only go, comfortable. The purpose, or the action, comes from the need to change. Every little experience (and not only the great and abnormal) contribute to mould someone in his trajectory. Bye bye. Provide feedback on this episode.

  3. 4D AGO

    HPR4576: Responce to Lee/Elsbeth eps

    This show has been flagged as Explicit by the host. I don't even know where I went with this but the idea was just to say the stuff Elsbeth expereanced was typical for corp-o's and that some of the issues she had getting work or jobs could be exponentially compounded by the result of neurodiversity. More private ADHD resources [ ] 12 Principles for Raising a Chi - Russell A. Barkley.epub 2024-03-08 10:43 453K [ ] 12 Principles for Raising a Child with ADHD - Russell A. Barkley.epub 2021-08-11 19:34 967K [VID] ADD and Loving It.mp4 2023-10-24 09:11 260M [VID] ADHD - Understanding the Superpowers Within [ezwOHAo3O_k].webm 2022-07-01 09:36 161M [IMG] Autism+Spectrum.png 2024-03-03 08:50 520K [SND] BC_200_Answering_Your_Questionsa1qb8-BC_200_Answering_Your_Questionsa1qb8.mp3 2022-12-12 17:41 71M [TXT] BC_200_Answering_Your_Questionsa1qb8-BC_200_Answering_Your_Questionsa1qb8.txt 2023-01-03 10:58 32K [ ] Bubble Gum Brain A Picture Book About Growth Mindset 17.epub 2024-11-13 09:37 1.0M [DIR] Bubble Gum Brain_ A Picture Boo - Julia Cook/ 2024-03-08 10:46 - [DIR] Cognitive.Behavioral.Therapy.for.Daily.Life-xpost/ 2024-06-14 10:29 - [VID] Drugging Our Kids [L7lHeosq-FY].webm 2018-03-30 20:28 432M [SND] Full Audiobook _ You Mean I'm Not Lazy, Stupid or Crazy [A-4-OKGaLDs].mp3 2020-11-01 18:52 49M [ ] Gary Chapman - The Five Love Languages How to Express Heartfelt Commitment to Your Mate (retail) (epub).epub 2021-08-11 19:34 914K [ ] Gary Chapman - The Five Love Languages How to Express Heartfelt Commitment to Your Mate (retail) (epub).pdf 2021-08-11 19:34 1.7M [VID] Learning Differently (ADHD Documentary) [9JMroyfJtO4].webm 2023-09-18 22:29 463M [VID] Living With ADHD BBC Documentary [5lrcxmOolB8].webm 2015-04-08 01:15 138M [VID] Take Back Control - Presentation by Dr. Edward Hallowell [HhoXGXtShGs].webm 2019-10-28 18:32 163M [VID] The Disorder That Will Affect Us All (Dopamine Secrets)- ADHD Documentary [48JKfl0ggPI].webm 2022-12-21 08:32 1.3G [VID] The Disruptors (2021) - [WEBRIP-1080P][AAC 5.1][X264]-RARBG.mp4.mp4 2023-10-24 09:42 774M [ ] The Explosive Child.pdf 2024-11-13 06:21 714K [TXT] The Explosive Child.txt 2024-11-14 01:20 338K [SND] The Explosive Child Audiobook.mp3 2024-11-14 09:30 161M [VID] Trevor Noah on Depression, ADHD & Ketamine Therapy [eKQTS-hAAcI].webm 2024-05-21 14:32 181M [VID] Video by adhdoers Markiplier.mp4 2024-06-20 21:39 4.3M [ ] You Mean I'm Not Lazy, Stupid o - Kate Kelly.epub Provide feedback on this episode.

  4. FEB 12

    HPR4574: UNIX Curio #0 - Introduction

    This show has been flagged as Clean by the host. This series is dedicated to exploring little-known—and occasionally useful—trinkets lurking in the dusty corners of UNIX-like operating systems. As the zeroth entry of this series, we'll have a little introduction to what it is supposed to be about and why you might want to listen. So that you don't leave without getting at least one piece of useful information, it will end with a little curio that you might find helpful someday. Back in 2010, I was the editor of the newsletter, titled The Open Pitt, for the Western Pennsylvania Linux Users Group in Pittsburgh. We distributed it as a two-page PDF, so had to have enough material to fill each issue. Because we were having some trouble getting contributions, I started writing columns in a series called "UNIX Curio" to occupy the empty space. They were inspired in large part by examples I had seen of people re-inventing ways to do things when utilities for the same purpose had already existed for a long time. The obvious question is: just what is a UNIX Curio? Let's start with the first word, UNIX. While a lot of people write it "Unix" instead, I have chosen to put it in all capitals because that is the way The Open Group, which controls the trademark and the certification process to use it, spells the word 1 . The history of UNIX is complex (search online for more details 2 )—the short version is that many variants emerged, often introducing incompatibilities. Even within AT&T/Bell Laboratories, two major branches came out. The Research UNIX lineage, which includes Seventh Edition (sometimes called Version 7), was often used in universities and government while System III and its more popular successor System V were clearly intended as commercial products 3 . The University of California's BSD was also very influential. My intention is to talk about things that are relatively common; ideally, they would be present on a large majority of systems so you can actually use them. Luckily, there were people who recognized the value in compatibility, so in the mid-1980s they initiated the development of the POSIX standards 4 . Publication of these not only caused commercial UNIX versions to aim for conformance—it gave Free Software implementations of utilities and operating systems a stable base to shoot for rather than having to chase multiple moving targets. As a result, today's GNU/Linux, FreeBSD, NetBSD, and OpenBSD systems generally behave as specified in POSIX, even if they haven't officially earned the UNIX or POSIX labels, so I treat them as part of the UNIX world. Moving on to the second word, "curio," it just means "an object of curiosity, often one considered novel, rare, or bizarre." There are many well-used utilities in the UNIX world, but people forget about others because they are only useful in specific circumstances. And when those circumstances arise, these obscure ones don't always get remembered. One purpose of this series is to point out some of them and describe where they can be appropriately put to use. With the flexible tools available on UNIX systems and the ability to string them together, it shouldn't be surprising that people come up with new ways to accomplish a task. I don't want to claim that these curios are always the best way to do something, just that it can be helpful to know they exist and see the way someone else solved the problem. Also, if you're using an unfamiliar system, sometimes programs you are accustomed to employing might not be installed so it's good to know about options that are widely available. So why am I the person to talk about this subject? I am not a UNIX graybeard with decades of professional computing experience. If I did grow a beard, it would only be partially gray, and my working life has been spent in the engineering world mainly around safety equipment. Sadly, there I have been forced to use Windows almost exclusively. However, in my academic and personal pursuits, I have been involved with using UNIX and Linux for more than 30 years, so I do have a bit of a historical perspective. For some reason, when I encounter an unusual or obscure tool, I want to learn more about it, especially so if I find it to be useful in some way. After gaining that information, I might as well share it with you. In addition, I have been involved with Toastmasters International, a public speaking organization, for about 15 years so I have experience in presenting things orally. I was inspired to turn this article series into podcasts by murph 5 , who delivered a presentation at the 2025 OLF Conference describing how and why to contribute to Hacker Public Radio 6 . The show notes for curios 1 through 3 will consist of the articles as they were originally written (though with references added). Because some examples, especially code, can be difficult to understand when they are read out loud, the podcasts will sometimes present the information in a different way. Show notes for this curio 0 and for curios 4 and later will be written with the podcast format in mind, so they will more closely match what I say. Let's end with an actual curio to kick off the series. Have you ever needed a quick reminder about whether the file you're looking for can be found under the /usr or /var directories? On many UNIX systems, man hier will give you an overview of how the file hierarchy is organized. This manual page is not a standard, but was present in Seventh Edition UNIX 7 and many descendents, direct and indirect, including every Linux distribution I have ever used. There are attempts to standardize the layout; in the Linux world, the Filesystem Hierarchy Standard (FHS) 8 , now hosted by Freedesktop.org 9 , intends to set a path to be followed. It should be noted that systemd has its own idea of how things should be laid out based on the FHS; if it is in use, try man file-hierarchy instead as it will likely be a more accurate description. I hope this gives you a good idea of what to expect in future episodes. The first one will be about shell archives, so keep an eye on Hacker Public Radio's schedule for it to appear. References: The Open Group Trademarks https://www.opengroup.org/trademarks History of Unix https://en.wikipedia.org/wiki/History_of_Unix The Unix Tutorial, Part 3 https://archive.org/details/byte-magazine-1983-10/page/n133/mode/2up POSIX Impact https://sites.google.com/site/jimisaak/posix-impact Correspondent: murph https://hackerpublicradio.org/correspondents/0444.html OLF Conference - December 6th, 2025 https://www.youtube.com/watch?v=hyEunLtqbrA&t=25882 File system hierarchy https://man.cat-v.org/unix_7th/7/hier Finding a successor to the FHS https://lwn.net/Articles/1032947/ Freedesktop.org now hosts the Filesystem Hierarchy Standard https://lwn.net/Articles/1045405/ Provide feedback on this episode.

  5. FEB 11

    HPR4573: Nuclear Reactor Technology - Ep 6 Thorium Reactors

    This show has been flagged as Clean by the host. Thorium Reactors 01 Introduction In this episode we will describe the use of thorium in nuclear power, including what thorium is, how it differs from uranium, and what sort of reactors can use it. 03 What is thorium 05 How thorium differs from uranium 07 Sources of Thorium 09 Why there is interest in using thorium as a fuel 10 Abundance of Thorium 11 Some Countries Have a Lot of It 12 Thorium Breeder Reactors are Simpler than Uranium Breeder Reactors 14 Supposed Lower Nuclear Weapons Potential 16 What is Thorium Breeding 20 Breeding Ratio 21 What sorts of reactors can use thorium 22 PHWRs - Heavy Water Reactors (Including CANDU) 24 HTR - High Temperature Gas Cooled Reactors 26 MSR - Molten Salt Reactors 29 Light Water Reactors (PWR, BWR) 31 Fast Neutron Reactors 32 The Challenges Facing Thorium Fuelled Reactors 37 Thorium in India - An Example Use Case 39 Why is India Pursuing Using Thorium? 40 How a Thorium Fuel Cycle Would Work in India 43 Current Status 46 Conclusion Thorium is an abundant material that is seen as an alternative to uranium in nuclear power. Experimental thorium power reactors date back to at least the 1960s. No new reactor technology is required to use thorium. Existing well proven reactor designs which have been in use for decades can use thorium as fuel. The common light water reactor designs that popular in some countries however are not well suited to using thorium.  Initial interest in thorium was mainly driven by a perception that uranium would be in short supply in future, and slow neutron thorium reactors were cheaper and simpler than fast neutron uranium reactors. However, huge new high grade supplies of uranium were found in a number of countries, causing uranium prices to fall and reducing interest in finding alternatives. While some R&D continues on thorium fuel in a number of countries, the mainstream of development continues to be on uranium based fuel. Some countries with abundant thorium reserves though maintain a major interest in thorium, with India being the prime example.  In the next episode we will describe small modular reactors. Provide feedback on this episode.

  6. FEB 10

    HPR4572: Uncommon Commands, Episode 3 - strace

    This show has been flagged as Clean by the host. These are the commands mentioned in the You may need to use "sudo" to run these commands depending on how your system is configured. strace uptime strace ls 2>&1 | grep open strace -e openat ls / strace ls /does/not/exist strace -o ls-trace.log ls strace -ff -o pid12345-trace.log -p 12345 HISTORY The original strace was written by Paul Kranenburg for SunOS and was inspired by its trace utility. The SunOS version of strace was ported to Linux and enhanced by Branko Lankester, who also wrote the Linux kernel support. Even though Paul released strace 2.5 in 1992, Branko's work was based on Paul's strace 1.5 release from 1991. In 1993, Rick Sladkey took on the project. He merged strace 2.5 for SunOS with the second release of strace for Linux, added many features from SVR4's truss(1), and produced a ver‐ sion of strace that worked on both platforms. In 1994 Rick ported strace to SVR4 and Solaris and wrote the automatic configuration support. In 1995 he ported strace to Irix (and became tired of writing about himself in the third person). Beginning with 1996, strace was maintained by Wichert Akkerman. During his tenure, strace development migrated to CVS; ports to FreeBSD and many architectures on Linux (including ARM, IA-64, MIPS, PA-RISC, PowerPC, s390, SPARC) were introduced. In 2002, responsibility for strace maintenance was transferred to Roland McGrath. Since then, strace gained support for several new Linux architectures (AMD64, s390x, SuperH), bi- architecture support for some of them, and received numerous additions and improvements in system calls decoders on Linux; strace development migrated to Git during that period. Since 2009, strace has been actively maintained by Dmitry Levin. During this period, strace has gained support for the AArch64, ARC, AVR32, Blackfin, C-SKY, LoongArch, Meta, Nios II, OpenRISC 1000, RISC-V, Tile/TileGx, and Xtensa architectures. In 2012, unmaintained and apparently broken support for non-Linux operating systems was removed. Also, in 2012 strace gained support for path tracing and file descriptor path decoding. In 2014, support for stack trace printing was added. In 2016, system call tampering was implemented. For the additional information, please refer to the NEWS file and strace repository commit log. Links https://strace.io https://en.wikipedia.org/wiki/Strace https://www.man7.org/linux/man-pages/man1/strace.1.html Provide feedback on this episode.

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Hacker Public Radio is an podcast that releases shows every weekday Monday through Friday. Our shows are produced by the community (you) and can be on any topic that are of interest to hackers and hobbyists.

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