Know Idea

Hosted by 4ZZZ

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Episodes

162

Latest episode

Aug 2026

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EN-AU

About the show

Know Idea with Max, Jay, Peta, Vi, Issy & Gabe Know Idea is your weekly dose of science on 4ZZZ for over 10 years! All things space & time, environment, health, tech, psychology plus everything else in-between. Recorded live at 4ZZZ on Wednesday 10-12 in Meanjin/Brisbane.

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October 2, 20261 hr 1 min

Supa Intelligence

Hosts: Max, Issy, and Gabe (and Maximillian) Timestamps and Links: 00:00 - Intro to Know Idea 01:59 - 719% Rise w/ Gabe 04:29 - Running with RAIBO2 w/ Peta 08:53 - Operatic Singing Lemur w/ Gabe 16:00 - AstroJAX Takes On HAL w/ Max 23:09 - Listening with Sharks w/ Peta 27:37 - Waiting Too Long To Listen w/ Gabe 29:02 - Support 4zzz! 31:03 - MotoRap w/ The Max’s 46:03 - Europe v Asia: The Dawn of Bats w/ Gabe 53:38 - Deadbeat Pigeon Dads Step Up w/ Issy 57:22 - Space News w/ Max - Mars New Year , NASA , and Starship Science Links For the Diggers: Look For New Science at EurkAlert , Science Daily , and Phys.org For Free Science Article Search 'Sci-Hub' or Anna’s Archive Check out the QS Rankings yourself here Research Volunteering: @ The University of Queensland Our Tik Tok , Instagram , and YouTube Produced and recorded by Max for Know Idea at 4zzz in Fortitude Valley, Meanjin/Brisbane Australia on Turrabul and Jaggera Country and audio and cover image edited by Tobi for podcast distribution via 4zzz Podcasts ( @4zzzpodcasts ) for Creative Broadcasters Limited. Image Credit: Fig 1. Set of 13 facial landmarks defined by Carugati et al. [64] for quantifying facial configuration in indris. The dotted line indicates the vertical mouth opening, calculated as the Euclidean distance between the Mouth_Top and Mouth_Bottom landmarks. https://doi.org/10.1371/journal.pcbi.1014781.g001

September 25, 20261 hr 6 min

Through The Eyes of Mice

# Hosts: Max, Issy, Peta, and Gabe (and Maximillian) Timestamps and Links: 00:00:00 - Intro to Know Idea 00:02:12 - Inconel 718 w/ Gabe 00:04:54 - Through The Eyes Of Mice w/ Peta 00:09:27 - The Male Wave w/ Gabe 00:20:31 - A Junky Cup w/ Max 00:27:34 - Stillbirth 'Grief' in Whale Mothers w/ Peta 00:33:42 - Support 4zzz! 00:35:12 - MotoRap w/ The Max’s 00:45:10 - Historical Indigenous Australian Population Boom w/ Gabe 00:56:59 - Buffering Fast Fashion Framework w/ Issy 01:03:14 - Space News w/ Max Science Links For the Diggers: Look For New Science at EurkAlert , Science Daily , and Phys.org For Free Science Article Search 'Sci-Hub' or Anna’s Archive Check out the QS Rankings yourself here Research Volunteering: @ The University of Queensland Our Tik Tok , Instagram , and YouTube Produced and recorded by Max for Know Idea at 4zzz in Fortitude Valley, Meanjin/Brisbane Australia on Turrabul and Jaggera Country and audio and cover image edited by Tobi for podcast distribution via 4zzz Podcasts ( @4zzzpodcasts ) for Creative Broadcasters Limited. Sound Effects Attributed to: 13148 tape deck rewinding by Robinhood76 -- https://freesound.org/s/797690/ -- License: Attribution NonCommercial 4.0

September 18, 20261 hr 6 min

Back With Wet Wetware: Dangerous Games

Hosts: Max, Issy, Peta, and Gabe (and Maximillian) Timestamps and Links: 00:00:00 - Intro to Know Idea 00:02:03 - Boeing MD-80 w/ Gabe 00:04:41 - Orcas: Danger [ous] Games w/ Peta 00:12:49 - Love, Laugh, Betel Nut w/ Gabe 00:20:20 - Wet Wet-Ware: Organoids w/ Max 00:27:17 - Bubbles: The Vomit Eating Dolphin w/ Peta 00:38:05 - MotoRap w/ The Max’s 00:47:03 - David Klyne : Back Pain and Study w/ Gabe - email: nih-f@uq.edu.au 01:00:47 - Support 4zzz! 01:03:08 - Space News w/ Max Science Links For the Diggers: Look For New Science at EurkAlert , Science Daily , and Phys.org For Free Science Article Search 'Sci-Hub' or Anna’s Archive Check out the QS Rankings yourself here Research Volunteering: @ The University of Queensland Our Tik Tok , Instagram , and YouTube Produced and recorded by Max for Know Idea at 4zzz in Fortitude Valley, Meanjin/Brisbane Australia on Turrabul and Jaggera Country and audio and cover image edited by Tobi for podcast distribution via 4zzz Podcasts ( @4zzzpodcasts ) for Creative Broadcasters Limited.

September 11, 20261 hr 6 min

Ethical Ig Nobels

Hosts: Max, Issy, Peta, and Gabe (and Maximillian) Timestamps and Links: 00:00:00 - Intro to Know Idea 00:01:58 - 4U 1820-30 @ 716/second w/ Peta 00:04:40 - Ig Nobel : Stealing Candy from Babies w/ Peta 00:17:42 - Cookie µBites w/ Max 00:23:00 - Probiotics for Heat Stress w/ Peta - Coral Reef Status 00:33:20 - MotoRap w/ The Max’s 00:46:04 - Ig Nobel : Stepping on Snakes for Science w/ Gabe 01:01:31 - Space News w/ Max Science Links For the Diggers: Look For New Science at EurkAlert , Science Daily , and Phys.org For Free Science Article Search 'Sci-Hub' or Anna’s Archive Check out the QS Rankings yourself here Our Tik Tok , Instagram , and YouTube Produced and recorded by Max at 4zzz in Fortitude Valley, Meanjin/Brisbane Australia on Turrabul and Jaggera Country. Audio and Cover Image edited by Tobi for podcast distribution for Creative Broadcasters Limited. Ignobel

September 4, 202658 min

Your Brain On Pollution

Hosts: Max, Issy, and Gabe (and Maximillian) Timestamps and Links: 00:00 - Intro to Know Idea 01:55 - 715 Health Check w/ Gabe 04:06 - Paraborg Cybug Swarm w/ Gabe 11:42 - Highway Pollution and Cognition w/ Max 19:09 - 'One Size Fits Small' w/ Issy 24:40 - Support 4zzz! 26:41 - MotoRap w/ The Max’s 36:38 - REWIND: Beached by Alzheimers w/ Peta from Oct 17 2025 - ±3 Papaya Party Prizes 47:43 - Defining Pristimantis w/ Gabe 55:44 - Space News w/ Max Science Links For the Diggers: Look For New Science at EurkAlert , Science Daily , and Phys.org For Free Science Article Search 'Sci-Hub' or Anna’s Archive Check out the QS Rankings yourself here Our Tik Tok , Instagram , and YouTube Produced and recorded by Max for Know Idea at 4zzz in Fortitude Valley, Meanjin/Brisbane Australia on Turrabul and Jaggera Country. Podcast audio and cover image edited by Tobi for Creative Broadcasters Limited and distributed by 4zzz Podcasts ( @4zzzpodcasts ). Image Credit: Figure 2: A - Overview of the terrestrial cyborg cockroach and its integrated hardware. The paramedic cockroach is equipped with compact components, including an AIM module for in situ drug-delivery, flexible pads and a PCB for electrical stimulation, and a LiPo battery powering both the AIM and PCB for wireless operation H. N. Le, P. T. Phan, L. Fitzgerald, P. R. McAree, T. N. Do, and T. T. Vo-Doan, "Paraborg: Paramedic Cyborg Insects for In Situ Emergency Drug-Delivery.” Advanced Science (2026): e76973. https://doi.org/10.1002/advs.76973 Figure 1: C - Live individual of P. latidiscus QCAZ-A 32128 from San Francisco, Durango road, Esmeraldas Province. Photographs of types in dorsal, ventral, and lateral views (from left to right). Note scapular ridges in both holotypes (arrows) and similarity of ventral pattern between the holotype of P. subsigillatus and P. latidiscus QCAZ-A 32128. Ron SR, Paredes-Aguirre P, Paucar DA, López Y, Apunte K, Ortega JA (2026) Long overdue: a new, widespread, species of Pristimantis (Anura, Strabomantidae) from the Chocó region and the synonymy of Pristimantis subsigillatus . ZooKeys 1286: 121-152. https://doi.org/10.3897/zookeys.1286.194383 Sound Effects Attributed to: 13148 tape deck rewinding by Robinhood76 -- https://freesound.org/s/797690/ -- License: Attribution NonCommercial 4.0 Turntable Rewind by hydroxian -- https://freesound.org/s/753665/ -- License: Creative Commons 0 Reverse vinyl scratch / warp by al_sub -- https://freesound.org/s/647161/ -- License: Creative Commons 0 Reel-to-Reel Tape Recorder Rewind + Stop‎ - 26 November ‎2011, ‏‎11:55:32 P.M. by crz1990 -- https://freesound.org/s/135871/ -- License: Attribution 4.0

August 28, 20261 hr 1 min

DOOM, Draculas, and The Colour Purple.

Hosts: Max and Issy (and Maximillian) Timestamps and Links: 00:53 - REWIND: Intro to Know Idea 02:59 - REWIND: Flamingo Feeding Fashion w/ Gabe - from Bang Your Drum , 14 May 2025 11:41 - Purple Is The New Black w/ Max 16:31 - Finding Vegan Dracula x3 w/ Issy 20:32 - REWIND: Waving at Cuttlefish w/ Peta - from Bang Your Drum , 14 May 2025 31:45 - MotoRap w/ The Max’s 46:49 - QuakeCon: 30 Years On and Doom on EVERYTHING : What's NeXT ? w/ Maximillian 56:31 - Space News w/ Max 58:38 - Support 4zzz! Science Links For the Diggers: Look For New Science at EurkAlert , Science Daily , and Phys.org For Free Science Article Search 'Sci-Hub' or Anna’s Archive Check out the QS Rankings yourself here Our Tik Tok , Instagram , and YouTube Produced and recorded by Max at 4zzz in Fortitude Valley, Meanjin/Brisbane Australia on Turrabul and Jaggera Country. Audio and Cover Image edited by Tobi for podcast distribution for Creative Broadcasters Limited. Image Credit: The mouth of a juvenile Australian brook lamprey by DETSI Principal Scientist David Moffatt Sound Effects Attributed to: 13148 tape deck rewinding by Robinhood76 -- https://freesound.org/s/797690/ -- License: Attribution NonCommercial 4.0 Turntable Rewind by hydroxian -- https://freesound.org/s/753665/ -- License: Creative Commons 0 Reverse vinyl scratch / warp by al_sub -- https://freesound.org/s/647161/ -- License: Creative Commons 0 Reel-to-Reel Tape Recorder Rewind + Stop‎ - 26 November ‎2011, ‏‎11:55:32 P.M. by crz1990 -- https://freesound.org/s/135871/ -- License: Attribution 4.0

August 21, 20261 hr 5 min

Seeding Science for National Science Week 2026

Hosts: Max, Issy, Peta, and Gabe (and Maximillian) Timestamps and Links: 00:00:00 - Intro to Know Idea 00:02:06 - Sextilis BC 00:05:59 - Training Asymmetry and Emotion Recognition in Canines w/ Peta + Bunny the Dog 00:16:41 - Unlikely Seed Spreaders w/ Gabe 00:23:40 - Shark Dandruff for Science w/ Peta 00:33:39 - Support 4zzz during the RADIOTHON Afterglow and go into the draw to win a range of PRIZES! 00:34:26 - STEM Increase - Correlation or Causation? w/ Max 00:33:39 - Support 4zzz during the RADIOTHON Afterglow and go into the draw to win a range of PRIZES! 00:36:38 - MotoRap w/ The Max’s 00:46:06 - Aging Achilles w/ Max 00:51:42 - Crashing After Release w/ Issy 00:56:21 - Space News w/ Max 01:00:03 - Ozzy Eclipse - July 22 2028 and More w/ Gabe Science Links For the Diggers: Look For New Science at EurkAlert , Science Daily , and Phys.org For Free Science Article Search 'Sci-Hub' or Anna’s Archive Check out the QS Rankings yourself here Our Tik Tok , Instagram , and YouTube Produced and recorded by Max for Know Idea at 4zzz in Fortitude Valley, Meanjin/Brisbane Australia on Turrabul and Jaggera Country and edited by Tobi for podcast distribution via 4zzz Podcasts ( @4zzzpodcasts ) for Creative Broadcasters Limited. ScienceWeek

August 14, 20261 hr 22 min

Fiercely Independent Science - Targeted Wiping

# Hosts: Max, Issy, Peta, and Gabe (and Maximillian) Timestamps and Links: 00:00:00 - Intro to Know Idea 00:02:12 - #712 Can-Am w/ Gabe 00:04:41 - Support 4ZZZ by SUBSCRIBING! 00:06:03 - N.E.U.SLee.P. w/ Peta 00:16:02 - Support 4ZZZ by SUBSCRIBING! 00:17:01 - The Red Back Somersaulting Mating Ritual w/ Gabe 00:26:27 - What is Kenough? w/ Max 00:32:10 - Support 4ZZZ by SUBSCRIBING! 00:32:58 - Coordinated Humpback Hunting w/ Peta - Animated Whale Video 00:44:12 - MotoRap w/ The Max’s 00:52:16 - Support 4zzz! 00:52:35 - Ninajirachi Aside w/ Issy 00:54:57 - Wanna Cry w/ Maximillian 01:01:26 - Support 4zzz this RADIOTHON to win a range of PRIZES! 01:08:23 - Fermenting Finesse in Cocoa w/ Issy 01:13:04 - Space News w/ Max 01:17:21 - Support 4zzz! Science Links For the Diggers: Look For New Science at EurkAlert , Science Daily , and Phys.org For Free Science Article Search 'Sci-Hub' or Anna’s Archive Check out the QS Rankings yourself here Our Tik Tok , Instagram , and YouTube Tape Deck Fast Forward sound effect by j_soundeffects -- https://freesound.org/s/845646/ -- License: Attribution 4.0 Produced and recorded by Max for Know Idea at 4zzz in Fortitude Valley, Meanjin/Brisbane Australia on Turrabul and Jaggera Country and edited by Tobi for podcast distribution via 4zzz Podcasts ( @4zzzpodcasts ) for Creative Broadcasters Limited.

August 7, 20261 hr 9 min

Muppets Jump on Science and eSafety Outcomes

Hosts: Max, Issy, Peta, and Gabe (and Maximillian) Timestamps and Links: 00:00:00 - Intro to Know Idea 00:02:31 - Eucalyptus Domination w/ Gabe 00:05:27 - Predicting Melody w/ Peta 00:12:44 - 'PA.RA.C.H.U.T.E.': Randomised Controlled Trials w/ Gabe 00:23:49 - On This Day: Drive w/ Max 00:24:34 - Marine Muppet Minotaur MPREG w/ Peta 00:34:33 - MotoRap w/ The Max’s 00:44:21 - Night Vision Upgrades to Multicolour w/ Max 00:49:07 - eSafety Results of Social Media Ban w/ Gabe 01:02:59 - Space News w/ Max Science Links For the Diggers: Look For New Science at EurkAlert , Science Daily , and Phys.org For Free Science Article Search 'Sci-Hub' or Anna’s Archive Check out the QS Rankings yourself here Our Tik Tok , Instagram , and YouTube 📸 ID: Holotype specimens of the three named species of Australyichthys as of August, 2026 in left lateral view. (Left) Australyichthys minotaur, NMV A192, male, (Middle) Australyichthys paradoxus, SAMA F10490, female, (Right) Australyichthys aegis, SAMA F14993, male. Not to scale. G. Short et al. - "Australyichthys gen. nov. (Teleostei, Syngnathidae), a lost mesophotic lineage from southern Australia, with description of A. aegis sp. nov. and reclassification of Hippocampus minotaur and H. paradoxus" Representative study participant jumping from aircraft with an empty backpack. This individual did not incur death or major injury upon impact with the ground. - Yeh R W, Valsdottir L R, Yeh M W, Shen C, Kramer D B, Strom J B et al. "Parachute use to prevent death and major trauma when jumping from aircraft: randomized controlled trial" BMJ 2018; 363 :k5094 doi:10.1136/bmj.k5094 Produced and recorded by Max for Know Idea at 4zzz in Fortitude Valley, Meanjin/Brisbane Australia on Turrabul and Jaggera Country and edited by Tobi for podcast distribution via 4zzz Podcasts ( @4zzzpodcasts ) for Creative Broadcasters Limited.

July 31, 20261 hr 9 min

Hitting The Fish for Orca Excitement

# Hosts: Max, Peta, and Gabe (and Maximillian) Timestamps and Links: 00:00:00 - Intro to Know Idea 00:01:53 - PREX 710 w/ Gabe 00:04:46 - Viral Sunfish Piñata w/ Peta 00:15:51 - Diving Deep into Phantom Midges w/ Gabe 00:24:27 - Barista Approved Bio-Diesel w/ Max 00:30:10 - Bubbles Key for Floating on Junk w/ Peta 00:36:35 - MotoRap w/ The Max’s 00:45:24 - Learning About The Likweli w/ Gabe 00:54:44 - AusAlert 'Success' w/ Gabe 01:04:11 - Support 4zzz! 01:05:26 - Space News w/ Max Science Links For the Diggers: Look For New Science at EurkAlert , Science Daily , and Phys.org For Free Science Article Search 'Sci-Hub' or Anna’s Archive Check out the QS Rankings yourself here Our Tik Tok , Instagram , and YouTube 📸 ID: Monkey Image Sourced from Hart JA, Amboko JD, Arenson JL, Horton ER, Coates KF, Kapale J-PI, et al. (2026) ' Likweli: A remarkable new species of Colobus monkey from the Lomami National Park, Democratic Republic of Congo. ' PLoS One 21(7): e0349857. https://doi.org/10.1371/journal.pone.0349857 - Fig 2. Colobus congoensis and C. satanas in life. . Larvae Image Sourced from 'A micro CT scan of the larva showing the air sacs in situ. Credit: Philip Matthews' Tape Deck Fast Forward sound effect by j_soundeffects -- https://freesound.org/s/845646/ -- License: Attribution 4.0 Produced and recorded by Max at 4zzz in Fortitude Valley, Meanjin/Brisbane Australia on Turrabul and Jaggera Country. Audio and Cover Image edited by Tobi for podcast distribution for Creative Broadcasters Limited.