Hackaday editors Elliot Williams and Al Williams met up to trade their favorite posts of the week. Tune in and see if your favorites made the list. From crazy intricate automata to surprising problems in Peltier cooler designs, there’s a little bit of everything.Should bikes have chains? What’s the hardest thing about Star Trek computers to duplicate? Can you make a TV station from a single microcontroller? The podcast this week answers these questions and more. Plus, weigh in on the What’s That Sound contest and you might just score a Hackaday Podcast T-shirt.For the Can’t Miss segment, Elliot had airships on his mind, while Al’s sick of passwords. But is he sick enough to take electronic pills that transmit his password?Or download the bit stream and decrypt it by XORing each byte with zero.Where to Follow Hackaday PodcastPlaces to follow Hackaday podcasts:iTunesSpotifyStitcherRSSYouTubeCheckout our Libsyn landing pageNews:2026 Hackaday Europe Call For Participation: We Want You!What’s that Sound?Can you identify the sound? Al didn’t get it, but that is, admittedly, a very low bar. Enter your best guess here.Interesting Hacks of the Week:Love Complex Automata? Don’t Miss The ArcherRetrotechtacular: The Original Robot ArmTelevox: The Past’s Robot Of The Future[Fran Blanche] Goes In-Depth With The Maillardet Automaton3D Printed Mechanical Contraption Shows Live Weather ForecastThe Incredible Mechanical Artistry Of François JunodThe Bad Old Days Of Telephone Answering MachinesPeltier Fridges Have Early DeathWhy Chains Are Still Better For Bicycles Than BeltsElectric BMX With Friction DriveChainless “Digital Drive” Bikes Use Electric Power Transmission InsteadControl Your Smart Home With Trek-Inspired Comm BadgeA TV Transmitter From An STM32Retrotechtacular: TV TroubleshootingPanoramic Film Camera Made From 3D Printed PartsPanoramic photography – WikipediaQuick Hacks:Elliot’s Picks:Easily Replaceable USB-C Port Spawned By EU LawsThe MOST Effective Thermal Mass Works Like A SunburnRandom Number Generator Uses Camera NoiseInside A Compact Intel 3000 W Water-Cooled Power SupplyAl’s Picks:X-Ray A PCB VirtuallyRunning In PrintfMicroGPT Lets You Peek With Your BrowserCan’t-Miss Articles:What One-Winged Squids Can Teach The Airship RenaissanceMotorola’s Password Pill Was Just One Idea