4ZZZ

Know Idea

Science EN ↓ 155 episodes

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.

Author

4ZZZ

Episodes

Unconscious Listening: Shiny Legs, Math Brains, and Hovering Wings. 10.07.2026 1:08:57

# Hosts: Max, Issy, Peta, and Gabe (and Maximillian) Timestamps and Links: 00:00:00 - Intro to Know Idea 00:02:29 - Missing Boeing 707 w/ Gabe 00:02:55 - Unconscious Predictions w/ Peta 00:13:13 - Long Necked and Simple Addition w/ Gabe 00:24:00 - Seafood Source of CMNV w/ Peta 00:33:36 - Support 4zzz! 00:36:09 - MotoRap w/ The Max’s 00:45:58 - Storing Waves w/ Max 00:50:00 - Shiny New Frog w/ Iss...

Placebo Backpacks 03.07.2026 1:16:15

# Hosts: Max, (Jordan?), Peta, and Gabe (and Maximillian) Timestamps and Links: 00:00:00 - Intro to Know Idea 00:02:08 - 706 Ships w/ Gabe 00:06:06 - Placebo History : Outcomes, Deception, and Expectation w/ Peta 00:16:37 - SCUBA Cockroach w/ Gabe 00:29:45 - Overheating Mesotherms w/ Peta 00:41:26 - MotoRap w/ The Max’s 00:51:01 - QS Rankings w/ Gabe 01:04:14 - Rounding Up in The World Cup w/ Max...

Snaring Scientific Discoveries 26.06.2026 1:11:32

# Hosts: Max, Issy, Peta, and Gabe (and Maximillian) Don't Touch Sick Wildlife - Call the Emergency Animal Disease Hotline on 1800 675 888 Timestamps and Links: 00:00:00 - Intro to Know Idea 00:02:34 - 705′ of Icy Climate Records w/ Gabe 00:06:58 - The Origin of Laughter w/ Peta 00:17:04 - Ballista Spider: A Speedy Snare w/ Gabe 00:27:19 - Diamantinic Miocene Necropolis w/ Peta 00:40:17 - MotoRap...

Your Brain on World Cup 19.06.2026 1:13:58

Hosts: Max, Issy, Peta, and Gabe (and Maximillian) Timestamps and Links: 00:00:00 - Intro to Know Idea 00:01:58 - A Kepler Year w/ Gabe 00:07:00 - Cleaning with Fire(whirl) w/ Peta 00:16:59 - Finch Calls: Summer is Coming w/ Gabe 00:25:12 - Octo-Mirror-Mapping w/ Peta 00:36:48 - MotoRap w/ The Max’s 00:50:01 - Mythos and Fable 5 w/ Maximillian - PC Mag Trial 00:54:24 - Support 4zzz! 00:55:23 - Sup...

Swell Melbourne Buoys 12.06.2026 1:11:58

Hosts: Max, Issy, Peta, and Gabe (and Maximillian) Timestamps and Links: 00:00:00 - Intro to Know Idea 00:01:58 - Picking Our Brain: 703 Times w/ Gabe 00:05:42 - BridgeMaxxing w/ Max 00:07:43 - Putting the Right Paw Forward w/ Peta 00:19:04 - RoboRoach w/ Gabe 00:28:05 - Swell Melbourne Buoys w/ Peta 00:40:01 - MotoRap w/ The Max’s 00:54:46 - SpiderCam w/ Max 01:00:46 - Tool Use: Bee Edition w/ Ga...

Correlating Behaviour 05.06.2026 1:03:34

Hosts: Max, Issy, and Peta (and Maximillian) Timestamps and Links: 00:00 - Intro to Know Idea 02:19 - Inhibition in 702 old people w/ Peta 05:02 - Standing for Cerebral Handed w/ Peta 20:26 - Shocking Eyes Into Shape w/ Max 26:06 - Fishy Zoomer Screen Time w/ Peta 37:02 - MotoRap w/ The Max’s 47:24 - Effects of Influencers: Ivermectin and Vitamin A w/ Issy - Turning the Frogs Gay 57:35 - Space New...

The Kimchi Smoothy Experience 29.05.2026 59:25

Hosts: Max, Issy, and Gabe (and Maximillian) Timestamps and Links: 00:00 - Intro to Know Idea 02:14 - CBA3656 NanoPlastic Excretion w/ Max 06:18 - BananaBerry Controversy w/ Gabe 16:52 - REWIND: Seals Are Picky Eaters w/ Peta 25:52 - Support 4zzz! 27:02 - Oldest Tool w/ Gabe 29:14 - MotoRap w/ The Max’s 41:02 - Bundibugyo Ebola Outbreak w/ Gabe 51:06 - Guava's Iron Studies w/ Issy 54:18 - Space Ne...

Charged Papers and Sceptics 22.05.2026 58:47

Hosts: Max, Issy, Elly, and Gabe (and Maximillian) Timestamps and Links: 00:00 - Intro to Know Idea 02:02 - 700 Million Years Ago w/ Gabe 05:32 - Drinking Grape Kool Aid w/ Gabe 14:58 - [Paper Batteries] ( https://www.flintlabs.com/ ) w/ Max 17:55 - On This Day: Need for 20km/hr Speed w/ Max 21:10 - Support 4zzz! 24:05 - North Sieed Wins Microplastics w/ Issy 28:34 - Diving into K'gari Lakes w/ Ga...

Piss Me Off Science 15.05.2026 1:01:07

Hosts: Max, Issy, Peta, and Gabe Timestamps and Links: 00:00 - Intro to Know Idea 01:58 - 699 Pages of Notes w/ Gabe 04:31 - Getting Psily with Fishy w/ Peta 13:15 - "Self Protection" in Insect Pain w/ Gabe 17:53 - Eggs on the Brain w/ Max 22:00 - Aquatic Mammals: Yell Louder w/ Peta 32:01 - MotoRap w/ Max 40:70 - Giant Dragonflies Back? w/ Gabe 48:44 - Metabolising the Cysts of PMOS w/ Issy 53:05...

Brain Washing 08.05.2026 1:08:25

Hosts: Max, Issy, Peta, and Gabe (and Maximillian) Timestamps and Links: 00:00:00 - Intro to Know Idea 00:03:01 - 698 Tropoelastin w/ Gabe 00:05:33 - Sideways Carcinisation w/ Peta 00:15:13 - Fleeing From Birds w/ Gabe 00:22:48 - Crunching Clean Your Cerebelum w/ Max 00:26:36 - Wiped Out in Anaerobic Recovery w/ Peta 00:36:54 - MotoRap: Max Verstappen of the Wet w/ The Max’s 00:50:29 - Yawning ove...

Four Rings, One Goal 01.05.2026 1:07:02

Hosts: Max, Issy, Peta, and Gabe (and Maximillian) Timestamps and Links: 00:00:00 - Intro to Know Idea 00:02:19 - 697 Hedgehogs w/ Gabe 00:04:57 - Conducting Caffeinated Chemistry w/ Peta 00:13:59 - The WeatherChimp w/ Gabe 00:20:06 - On This Day: Roget's Thesaurus w/ Max 00:20:29 - Wooly Bones w/ Max 00:24:04 - AI Accuracy in Passive Acoutics w/ Peta 00:35:48 - MotoRap w/ The Max’s 00:44:53 - A J...

Guesstimating Science 24.04.2026 1:01:46

Hosts: Max, Issy, Peta, and Gabe (and Maximillian) Timestamps and Links: 00:00 - Intro to Know Idea 01:54 - HERA - 696kg w/ Gabe 04:08 - Perception Guesstimation w/ Peta 13:36 - Smooth Boned Deepfakes w/ Max 19:46 - Nature’s NBN w/ Gabe 26:41 - Cocaine Salmon w/ Peta 34:27 - MotoRap w/ The Max’s 45:13 - 大蟇 w/ Issy 49:59 - Support 4zzz this April Atonement! 55:44 - Space News w/ Max Science Links...

Swiping, Screaming, and Sniffing Sticks 17.04.2026 1:14:23

Hosts: Max, Issy, Peta, and Gabe (and Maximillian) Timestamps and Links: 00:00:00 - Intro to Know Idea 00:03:00 - Counting Creatures - 695 Billion w/ Gabe 00:05:23 - Triggering Hyposmia w/ Peta 00:14:35 - The Chimp Empire War w/ Gabe 00:30:43 - Clicking with the Author w/ Peta 00:34:34 - The Effort Swiping Left w/ Max 00:38:44 - MotoRap w/ The Max’s 00:42:57 - The Psyche of Claude Mythos w/ Maximi...

The Flight of Rays and Bumble Bees 10.04.2026 1:11:25

Hosts: Max, Issy, Peta, and Gabe (and Maximillian) Timestamps and Links: 00:00:00 - Intro to Know Idea 00:02:19 - 694.3 nm 00:05:24 - Picture Clicking Good w/ Peta 00:15:32 - French Pressed Bee w/ Gabe 00:22:45 - Doublespeak w/ Max 00:27:18 - Flighty Rays w/ Peta 00:38:13 - MotoRap w/ The Max’s 00:47:12 - The Rhythm of the Bees w/ Gabe 00:55:15 - Support 4zzz! this April Atonement 00:58:52 - The M...

Inceptions, Examinations, and Arenas 03.04.2026 1:09:58

Hosts: Max, Issy, Peta, and Gabe (and Maximillian) Timestamps and Links: 00:00:00 - Intro to Know Idea 00:02:03 - 693 Alloy w/ Gabe 00:04:52 - Whisking Whiskers w/ Peta 00:13:36 - Multi-Axis Conception w/ Gabe 00:20:47 - Benchmarking Humanity w/ Max - Humanity’s Last Exam 00:25:27 - Whale Birthing Pod w/ Peta 00:34:35 - MotoRap w/ The Max’s 00:45:06 - Cane Toad Arena w/ Issy 00:51:44 - Support 4zz...

Quantum Charged Crabibalism 27.03.2026 1:10:51

Hosts: Max, Peta, and Gabe (and Maximillian) w/ Russel popping in for a non speaking part. Timestamps and Links: 00:00:00 - Intro to Know Idea 00:01:54 - 692 Calories w/ Gabe 00:06:02 - Crabibalism w/ Peta 00:13:27 - A Nip of Nectar w/ Gabe 00:22:19 - Super Charged Quantum Battery w/ Max 00:26:09 - The Door & science? 00:27:40 - Social Ramming in Whales w/ Peta 00:39:21 - MotoRap w/ The Max’s...

Streamin', Screamin', and Jivin' to the Rhythm. 20.03.2026 1:07:24

Hosts: Max, Issy, Peta, and Gabe (and Maximillian) Timestamps and Links: 00:00:00 - Intro to Know Idea 00:02:00 - 691 grams w/ Gabe 00:05:50 - Chummy Bull Sharks w/ Peta 00:14:19 - Zoning ADHD w/ Gabe 00:21:53 - Ah, ha, ha, ha, Streamin' Alive w/ Max 00:25:46 - Marine Science: Screaming Science w/ Pęta 00:36:29 - MotoRap w/ The Max’s 00:44:00 - Tyres: Interview w/ F1 Chief Engineer Simone Berra fr...

Love, Crystals, and Mushrooms 13.03.2026 29:46

Hosts: Max, Ellie, Issy, and Gabe MotoRap will not be available this week - please listen via On Demand for the complete show. Timestamps and Links: 00:00 - Intro to Know Idea 02:47 - 690kg w/ Gabe 03:10 - Crystals: A 6 Million Year Old Fascination w/ Gabe 11:23 - GLP-1: For the Faint Hearted w/ Max (backing noise dodgily removed by Adobe AI - Sorry but it was either that or a very loud hum the en...

SHALL WE PLAY A GAME? 06.03.2026 1:04:29

Hosts: Max, Issy, Peta, and Gabe (and Maximillian) Timestamps and Links: 00:00:00 - Intro to Know Idea 00:03:33 - 689 Points Behind w/ Gabe 00:04:57 - What Women [Whales] Want w/ Peta 00:14:27 - Bird Brained w/ Gabe 00:24:28 - SHALL WE PLAY A GAME? w/ Max 00:31:08 - Scanning for Bubble Tea w/ Gabe 00:33:06 - Support 4zzz! 00:35:10 - MotoRap w/ The Max’s 00:48:06 - Marine Science: Self Aware Naïve...

Boys Night Piss Up 27.02.2026 1:04:42

Hosts: Max, Issy, and Gabe (and Maximillian) Timestamps and Links: 00:00 - Intro to Know Idea 02:08 - EYU688 w/ Gabe 04:13 - Tim Tam: Mangoes &amp; Cream Aside 05:12 - Chimps On The Piss w/ Gabe 17:04 - Alzheimers Vaccine w/ Max 00:00 - REWIND: Vibrant Virility in Guppy Genetics w/ Peta 27:30 - Going Deeper w/ Gabe 29:52 - Support 4zzz! 31:59 - THE NEW MotoRap w/ The Max’s 49:50 - Crested Hell...

Jane Austin's Ode to Chins and Whales 20.02.2026 1:07:23

Hosts: Max, Issy, Peta, and Gabe (and Maximillian) Timestamps and Links: 00:00:00 - Intro to Know Idea 00:02:03 - 687: Days on Mars w/ Gabe 00:04:01 - Puzzling Out Dreams w/ Peta 00:13:52 - Taking On The Chin w/ Gabe 00:23:11 - [Jane Austin's Sustenance and Sustainability] http://dx.doi.org/10.1016/j.tjnut.2025.06.030 w/ Max 00:28:35 - Support 4zzz! 00:30:50 - MotoRap w/ The Max’s 00:45:31 - Stres...

Glowing Measures of Inaction 13.02.2026 1:05:12

Hosts: Max, Issy, Peta, and Gabe (and Maximillian) Timestamps and Links: 00:00:00 - Intro to Know Idea 00:02:02 - 686: Habitat Shift w/ Gabe 00:03:51 - Walking Sharks: Just Don’t w/ Peta 00:09:39 - Categorising Memories w/ Gabe - Babies in an MRI from last year 00:19:33 - Glowing Ethics w/ Max 00:24:58 - Tracking Tuna w/ Peta 00:35:50 - MotoRap w/ The Max’s 00:41:54 - Apteribis: The Nocturnal Flig...

Size Matters 06.02.2026 1:12:02

Hosts: Max, Ellie, Peta, and Gabe (and Maximillian) Timestamps and Links: 00:00:00 - Intro to Know Idea 00:02:08 - 685: NGC 685 w/ Gabe 00:04:01 - Disappearing Zombie Worms w/ Peta 00:11:40 - Creativity: Man VS Machine w/ Gabe - TEST YOURSELF 00:21:08 - Floating on GERFSHMT w/ Max 00:26:31 - Galvanic Shark Deterrent w/ Peta 00:35:41 - MotoRap: The Shakedown w/ The Max’s 00:47:13 - Black Holes Matt...

Grab, Sniff, Scratch, or Gulp? 30.01.2026 1:06:23

Hosts: Max, Issy, Elly, Peta, and Gabe (and Maximillian) Timestamps and Links: 00:00:00 - Intro to Know Idea 00:02:17 - 684: Mars Sol w/ Gabe 00:04:40 - Voyeuristic Science: Swinging Belugas w/ Peta 00:14:15 - Do You Grab or Sniff Your Nuts? w/ Gabe 00:18:38 - Powdered White Teeth w/ Max 00:23:13 - Bubble Net w/ Peta 00:33:52 - MotoRap w/ The Max’s 00:44:55 - $1 spent: $10 saved w/ Issy 00:49:16 -...

Bring Us Back 2 Reality 23.01.2026 1:04:53

Hosts: Max, Issy, and Peta Timestamps and Links: 00:00:00 - Intro to Know Idea 00:04:16 - REWIND: Remembering Enfacement Illusion w/ Max 00:09:33 - Diving into Darkwaves w/ Peta 00:16:36 - Scuba w/ Hank Green 00:17:27 - Fermenting Carrots for Protein w/ Issy 00:23:44 - Talking Sharks w/ Peta 00:35:41 - MotoRap w/ The Max’s 00:45:45 - Alpha Gal Anaphylaxis w/ Peta - CSIRO Tick Info 00:54:10 - Suppo...