How did the first vertebrates take to the skies? In this episode, we venture into the Mesozoic to explore the world of pterosaurs—the remarkable flying reptiles that ruled the air for over 150 million years. Dr. Jeffrey Zurek is joined by Adele Pentland, a researcher and PhD candidate from Curtin University, to discuss her discovery and description of Haliskia peterseni.

We investigate research process in paleontology, including the complexities of zoological taxonomy. Adele shares the challenges of piecing together an animal from 100-million-year-old hollow bones and discusses the vital role of museum exhibits in bringing these to the public.

Highlights

• Pterosaurs: They aren't "flying dinosaurs" & how their unique wing anatomy evolved
• The Discovery of Haliskia: And what it tells us about life in prehistoric Australia
• Taxonomy & Nomenclature: A breakdown of how we name new species & why museum catalog numbers matter
• Science Communication: The intersection of research, paleo-art, community-driven tourism in regional Australia

Chapters

(0:00) The 4 Evolutions of Flight

(1:40) Defining the Archosaur Clade

(2:35) Orientation in Geologic Time: Mesozoic vs. Cenozoic

(4:50) Adele Pentland: PhD Life on a Sheep Station

(10:50) Pterosaur Anatomy: The Elongated 4th Finger

(12:10) Quetzalcoatlus: Giraffe-Sized Flyers

(15:45) The Challenge of Fossilizing Hollow Bones

(18:20) Prehistoric Diets: From Fish-Eaters to Filter Feeders

(20:50) Naming Haliskia peterseni

(24:45) Jargon Alert: Navigating Zoological Taxonomy

(30:35) Lumpers vs. Splitters in Geological Sciences

(32:40) Holotypes and Museum Catalog Numbers

(36:50) Spinosaurus Controversy & Neotypes

(40:00) Ghost Juveniles: Where are the Pterosaur Rookeries?

(44:50) Estimating Wingspan from Scant Data

(49:00) Pterosaur Eggs & Parental Care Strategies

(55:20) Designing Museum Exhibits for Accessibility

(1:04:30) Outreach: Children's Books & STEM Pals

(1:09:50) The Best Pterosaur Science Joke

Links

Haliskia peterseni :Scientific Reports

Adele Pentland Website

Book: Nature People - Cesar Puechmarin

Support: Pateron

Socials: Bluesky | Instagram | Facebook

Whimsical Wavelengths: Deep-dive conversations where a working scientist unpacks how we know what we know, one paper, one idea, or whimsical detour at a time. Hosted by Dr. Jeffrey Zurek (P.Geo).

Is plastic truly the environmental demon it’s painted to be? In this episode of Whimsical Wavelengths, we step away from the traditional paper-based deep dive to look at the material that defines modern life. Dr. Jeffrey Zurek is joined by Dr. Chris DeArmitt, a world-leading polymer scientist and independent consultant, to separate media narratives from peer-reviewed reality.

From the concentration of the Great Pacific Garbage Patch to the mathematical efficiency of PET bottles, we explore the trade-offs of material science. Dr. DeArmitt challenges the perceived "greenness" of glass and aluminum, arguing that plastic is often the lowest-impact solution, through a Life Cycle Assessment (LCA) lens. We also tackle the "sausage-making" of science communication, and the influence of PR on public perception.

Highlights

• The Material Trade-off: Why plastic is "the worst material, apart from all the others" when it comes to carbon footprints and energy use.
• The "Garbage Patch": A look at the real oceanography behind plastic concentration vs. the "island of trash" myth.
• Recycling Economics: Plastic is harder to recycle profitably than gold or aluminum and why that’s actually a sign of its efficiency.
• Microplastics & Toxicity: Breaking down 50 years of data on polymer degradation and human health.
• The Communication Gap: Host Jeff Zurek reflects on the difficulty of finding nuance in polarized, PR-driven science.

Chapters

(0:00) Life in Plastic its fantasic?

(2:15) Sausage-Making of Podcast Guest Outreach

(4:10) Canada’s Single-Use Plastic Ban and problematic Plastics

(6:50) Introducing Dr. Chris DeArmitt: The "Chef" for Plastics

(9:00) Conducting Polymers: When Plastic isn't an Insulator

(11:40) 22 Grams to 8: The Massive Increase in Plastic Efficiency

(13:10) The 10-Life Cycle of a PET Bottle

(16:45) Self styled Crusade for Truth

(19:45) Great Pacific Garbage Patch

(22:30) Guesswork vs. Evidence

(25:40) Microplastics vs. Dust: Toxicity "Dose Makes the Poison"

(30:45) Debunking "Plastic in the Brain": Methodology Errors

(34:10) Why an Independent Scientist Works for Free

(37:50) NGO Landscape: Think Tanks and Industry

(41:40) Problem of Mismanaged Waste vs. Waste Volume

(44:00) Ferrari Analogy: trade-in Value vs. Initial Impact

(47:30) Policy Failures: New Jersey Reusable Bags

(51:10) A Scientist’s Limerick and the Periodic Table

(53:30) Host’s Reflection: Addressing the Missing Nuance

Links

Dr Chirs DeArmett's book

Support: Pateron

Bluesky | Instagram | Facebook

Whimsical Wavelengths: Deep-dive conversations where a working scientist unpacks how we know what we know, one paper, one idea, or whimsical detour at a time. Hosted by Dr. Jeffrey Zurek (P.Geo).

What happens at the gravitational center of a galaxy? In this episode of Whimsical Wavelengths, we spiral into the dark heart of the universe with Dr. James Chan, a postdoctoral researcher at the American Museum of Natural History. As a geophysicist, host Dr. Jeffrey Zurek steps out of his "wheelhouse" and into the event horizon to explore how supermassive black holes grow, interact, and occasionally "eat light."

We break down the complex physics of Active Galactic Nuclei (AGN) and the intricate structures of accretion disks. Dr. Chan explains the fascinating technique of reverberation mapping—using the "echoes" of light to measure the size and scale of regions billions of light-years away. We also discuss the "black hole winds" that can travel thousands of light-years to shut down star formation across entire galaxies.

Highlights

• Black Holes 101: From mathematical singularities to the practical boundary of the event horizon.
• The Formation Mystery: Why we are still searching for the "intermediate" gap between stellar-mass and supermassive black holes.
• Accretion Disk Dynamics: Exploring "lamppost" models and why these disks often appear larger in reality than in our current theories.
• Reverberation Mapping: A deep dive into how astronomers use temporal delays in light (reverb) to "hear" the shape of space-time.
• The Future of Data: How the Rubin Observatory will soon provide petabytes of data, requiring machine learning to catch every "light curve."

Chapters

(00:00) Gravitational Pull: Intro

(01:10) What is a Black Hole? Singularity vs. Reality

(02:15) The Event Horizon and Spaghettified Punchlines

(04:00) Dr. James Chan: Chasing Answers to Everything

(05:30) Gravitational Lensing as a Universal Tool

(08:50) Active vs. Inactive: Life Survive an AGN?

(13:30) Direct Collapse vs. Hierarchical Merging

(16:50) The Anatomy of an Accretion Disk

(20:10) Black Hole Wind Gradient & Radiation Pressure

(23:45) AGN Feedback: Black Holes & Galaxy Evolution

(27:20) Lamppost Sources & Optically Thick Disks

(30:05) Reverberation Mapping: Echoes of Light

(34:30) Discrepancy: Observations Defy Current Theory

(37:00) Drowning in Data: Rubin Observatory & AI

(39:35) A Series of "Sucky" Science Jokes

(42:00) Closing Thoughts: Infinite Potential

Links:

• Paper at the center of the episode: https://arxiv.org/pdf/2409.15669
• Support the Show: [Patreon]
• Connect: Bluesky | Instagram | [email protected]

Whimsical Wavelengths: Deep-dive conversations where a working scientist unpacks how we know what we know, one paper, one idea, or whimsical detour at a time. Hosted by Dr. Jeffrey Zurek (P.Geo).

Why is homemade ice cream never as fluffy as store-bought? This week on Whimsical Wavelengths, we trade liquid rock for liquid dairy and food science. Host Dr. Jeffrey Zurek finds surprising parallels between volcanology and frozen desserts—from rheology and viscosity to the glass transition temperature.

Joining the pod is Dr. Abigail Thale, a food scientist and expert in fat structures. We break down the architecture of ice cream, exploring how tiny fat globules form networks to keep your scoop from becoming a puddle. From the physics of scraped surface freezers to emulsifiers, this episode dives into what makes ice cream... well, ice cream.

Highlights

Magma vs. Ice Cream: Multiphase flow of volcanoes mirrors the complex mix of air, ice, and fat

The Fat Network: The "partial coalescence" of fat globules is the secret to a scoop that holds shape

Air is Calorie-Free: The science of "overrun" and why premium ice cream feels so much heavier

Ice Crystal Management: How temperature cycling in your home freezer causes crystals to grow, leading to a grainy texture.

Mustard Custard? A look at the weirdest flavor collaborations, some things just shouldn't be

Chapters

(0:00) Cosmic Storms and Ice Cream Dreams

(2:10) Volcanoes and Sundaes: Crossover Science

(4:00) Dr. Abigail Thale: The Path to Food Science

(7:20) Ice Cream: Serum Phase and Fat Globules

(9:30) The Meltdown Test: Quantitative Melting

(11:50) Ice Cream Sandwiches Don't Collapse in heat

(14:40) Cold Chains and QAQC: Modern Ice Cream is Better

(17:15) Reducing Freezing Point: Sugar and Scoopability

(20:00) Scraped Surface Freezer Creating Fat Networks

(23:10) Plant-Based: Can Vegan Fats Match Milk Fat?

(26:30) Standard vs. Premium vs "Super Premium"?

(29:40) Emulsifiers: The Glue Holding it All Together

(32:15) Ice Crystals: Your Home Freezer is the Enemy

(35:30) Kitchen Chemistry vs. Global Supply Chains

(38:50) Visualizing 3D Structure of a Frozen Dessert

(40:15) Taste vs. Flavor: Why the Nose Does the most

(42:40) Mustard Museum and Limits of Flavor Innovation

(47:15) A Classic Chemistry Joke (Don't drink H2O2)

Links:

Youtube: http://www.youtube.com/@AbbeytheFoodScientist

Colouring book:https://www.amazon.com/dp/B0FGJWXGHD

Show: Pateron| Bluesky | Instagram | Facebook | whimsicalwavelengths.com

Whimsical Wavelengths: Deep-dive conversations where a working scientist unpacks how we know what we know, one paper, one idea, or whimsical detour at a time. Hosted by Dr. Jeffrey Zurek (P.Geo).

How can a "well-behaved" volcano produce explosions that dwarf Mount St. Helens? In the Season Two premiere, host Dr. Jeffrey Zurek explores the deadly volcanic paradox of Nicaragua’s Masaya Volcano.

Masaya is a "persistently active" shield volcano, yet the geologic record reveals a history of violent Basaltic Plinian eruptions. By "probing the crystals" through melt inclusion geochemistry, this episode uncovers a massive hidden magma budget and explores the "Glass Transition" trigger that turns a steady flow into a cataclysmic blast.

Inside the Episode

• The Plinian Mystery: Why fluid basaltic magma sometimes decides to fragment and explode.
• Melt Inclusions: Using tiny snapshots of magma trapped in crystals to see deep into the Earth.
• The 40km³ Magma Budget: Calculating 250 years of hidden, un-erupted magma.
• Tectonic Triggers: How pull-apart faults allow for massive deep-seated reservoirs.
• Brittle Magma: The Glass Transition Temperature as a mechanism for runaway explosive energy.

Show Timeline

(00:00) Season 2 Kickoff and Summer Updates

(03:00) Why Masaya is the Perfect Lab

(06:45) Pliny the Younger and Mount Vesuvius

(09:00) Drivers of Eruptions: Gas and Viscosity

(11:15) Non-Newtonian Flow and Ketchup Bottles

(13:00) Silicon and Oxygen: Volcanic Polymerizers

(18:00) The Paradox of Masaya’s Basaltic Ash

(20:15) Melt Inclusions: Snapshots of Deep Glass

(23:00) Decoding the Olivine Solid Solution Series

(31:45) The Missing 40 Cubic Kilometers of Magma

(37:30) Cooling and the Fragmentation Trigger

(40:00) Hazard Realities for Masaya City Residents

Links & Resources

Paper of the episode: https://www.sciencedirect.com/science/article/abs/pii/S0377027318303470

Basaltic plinian eruptions at Masaya example:

https://www.nature.com/articles/s43247-022-00585-5#:~:text=Las%20Sierras%2DMasaya%20volcanic%20system,%2DTIL)13%2C20.

• Support: Pateron
• Socials: Bluesky | Instagram | Facebook | [email protected]

Whimsical Wavelengths: Deep-dive conversations where a working scientist unpacks how we know what we know, one paper, one idea, or whimsical detour at a time. Hosted by Dr. Jeffrey Zurek (P.Geo).

: [email protected]

Today the pod shows its fitness with im-peck-able wordplay. That's right, today's episode is for the birds. At least those which have a raven-ous appetite for knowledge.

Our guest, PhD candidate Miranda Zammarelli (Dartmouth College) has research that takes place in what I guess can be best described as the closest we can get for lab conditions in the natural world. The site for her work is the Hubbard Brook Experimental Forest - located in New Hampshire.

The forest is her laboratory and this discussion does its best to get at how and why it happens!

For thoses that want to get involved in Citizen Science (PLEASE DO!) check out these apps for your smartphone

Merlin: https://merlin.allaboutbirds.org/

ebird: https://ebird.org/home

Also don't forget about the future when its time for the Christmas Bird Count (https://www.audubon.org/community-science/christmas-bird-count)

Or the Great Backyard Bird Count !

(https://www.birdcount.org/)

Links for Whimsical Wavelengths:

Facebook:www.facebook.com/WhimsicalWavelengths

Instagram: @whimsical.wavelengths

Bluesky: @whimsicallambda.bsky.social

Email: [email protected]

Patreon: patreon.com/WhimsicalWavelengths

Part2 jumps in where part 1 left off so more about Theropods! specifically about one of Dr François Therrien's recent studies about a Gorgosaurus and what was found inside its stomach!!!!

incase you missed it from the notes of the last episode:

Dr François Therrien - The Curator of Dinosaur Palaeoecology at the Royal Tyrrell Museum in Drumheller Alberta https://tyrrellmuseum.com/

Dr François Therrien's Professional Highlights (lifted from the museum's website)

• Discovered the first feathered dinosaurs from North America.
• Researched Cryodrakon boreas, a new species of pterosaur that was among the largest and oldest in North America.
• Published on a theropod site from Mongolia that reveals that colonial nesting behaviour first evolved in the dinosaurian ancestors of birds.
• Researched Thanatotheristes degrootorum

Links for Whimsical Wavelengths:

Bluesky: @whimsicallambda.bsky.social

www.facebook.com/WhimsicalWavelengths

instagram: @whimsical.wavelengths

Email: [email protected]

Patreon: patreon.com/WhimsicalWavelengths

This time we take a deep dive into an hypothesis The longevity bottleneck hypothesis: Could dinosaurs have shaped ageing in present-day mammals?” by João Pedro de Magalhães

https://doi.org/10.1002/bies.202300098

See our branch of the animal kingdom, mammals, first evolved around 200 million years ago. During the age of dinosaurs. To quote the paper “long evolutionary pressure on early mammals for rapid reproduction led to the loss or inactivation of genes and pathways associated with long life”

To talk about this and look at the evolution of aging, the wonderful and fantastic Dr Molly Burke agreed to talk about her research and the science of aging more generally! Her lab at the Oregon State university uses model organisms to experimentally study evolution. (https://ib.oregonstate.edu/directory/molly-k-burke).

Links for Whimsical Wavelengths:

www.facebook.com/WhimsicalWavelengths

instagram: @whimsical.wavelengths

Email: [email protected]

Patreon: patreon.com/WhimsicalWavelengths

How do we know the Earth is 4.55 billion years old? It turns out the man who found the answer also had to save us from an invisible poison. In the Season 1 finale, Dr. Jeff Zurek tells the story of Dr. Clair Patterson, the geochemist who fought the lead industry and won.

Tracing Patterson’s path from the Manhattan Project to the University of Chicago and Caltech, we explore how his quest to date the solar system using lead isotopes in meteorites led to a terrifying discovery: global lead contamination. This episode covers the physics of radioactive decay, the invention of the Clean Room, and the fierce battle between Patterson and lead-industry scientists like Dr. Robert Kehoe. It’s a story of how "basic research" triggered the greatest reduction in public lead exposure in history.

Key Topics

• Geochronology: Understanding parent/daughter isotopes, alpha/beta decay, and half-lives.
• Mass Spectrometry: From separating uranium at Oak Ridge to dating ancient zircons.
• The Clean Room: Why Patterson had to reinvent the lab to find true "natural" lead levels.
• Lead vs. Crime: Analyzing the 20-year lag and the 60x reduction in blood lead levels since 1960.
• Industry vs. Academia: Challenging the consensus on "normal" lead pollution.

Chapters

(00:00) Season 1 Finale & Feedback

(01:50) Introducing Dr. Clair Patterson

(03:55) The Manhattan Project: Oak Ridge & Calutrons

(06:00) Radioactivity: Parents, Daughters, and Stability

(07:20) Alpha, Beta, and Gamma Decay

(08:45) The Probability of Half-Life

(10:45) University of Chicago: Post-War Brain Trust

(12:30) Inventing the Clean Room at Caltech

(13:40) The Big Discovery: Earth is 4.55 Billion Years Old

(15:10) Authorship Ethics in Geosciences

(16:30) Deep Ocean Sediments: The 80x Lead Increase

(18:30) Dr. Robert Kehoe and the Kettering Laboratory

(21:20) Telling Congress: Natural vs. Normal Lead

(23:15) The EPA and the Slow Walk to Regulation

(25:15) Ancient Skeletons: Confirming 1,200x Pollution

(27:45) The Lead-Crime Hypothesis

(29:45) Season 2 Launch & Encore Preview

Links & Resources

• Support: Pateron
• Socials: Bluesky | Instagram | Facebook

Whimsical Wavelengths: Deep-dive conversations where a working scientist unpacks how we know what we know, one paper, one idea, or whimsical detour at a time. Hosted by Dr. Jeffrey Zurek (P.Geo).

With a major feature film titled Midge currently in development, the world is looking back at the complicated legacy of Thomas Midgley Jr. In this episode, Dr. Jeff Zurek goes beyond the Hollywood hype to explore the true scientific history of Tetraethyl Lead (TEL).

Midgley was an engineering genius who solved "engine knocking" but inadvertently triggered a global lead poisoning crisis. We explore the 1920s corporate landscape where GM, DuPont, and Standard Oil formed the Ethyl Gasoline Corporation, and how they prioritized industrial "needs for speed" over known public health risks. It’s a story of internal combustion, periodic table breakthroughs, and the "Sausage-Making" of corporate science that shaped the 20th century

Topics

Pb Through Time: lead usage & early toxicity warnings

Roman Empire Mystery: Lead acetate & the potential link to the fall of Rome

Octane & Knocking: mechanics of the internal combustion engine

Thomas Midgley Jr.: The man whose inventions changed the world

Ethyl Conspiracy: GM, DuPont, & Standard Oil ignored worker "Mad Hatter" symptoms

Prohibition & Fuel: Why the world chose leaded gasoline over ethanol

Chapters

(00:00) Intro: Why "Unleaded" Matters

(01:50) A Scientific Disaster Story

(02:35) Pb: 6,500 Years of Lead History

(04:30) Why Men Think About Rome

(06:20) Lead Acetate: The Ancient Sweetener

(11:30) Evolution of the Automobile

(14:40) The Physics of Engine Knocking

(16:30) Thomas Midgley Jr. (The "Midge" Story)

(20:00) Periodic Table Trends & Tetraethyl Lead

(22:20) Why Ethanol Lost the Fuel War

(27:15) 1924: Tragedy at the New Jersey Plant

(29:30) Midgley’s Hand-Washing Media Stunt

(31:40) Corporate Giants: GM, DuPont, and Dow

(38:00) Preview: Clair Patterson & the Age of the Earth

Links

www.washingtonpost.com/climate-environment/2025/07/01/flint-lead-pipes-replacement/

https://eos.org/articles/flint-10-years-later

• Support: Pateron
• Socials: Bluesky | Instagram | Facebook

Whimsical Wavelengths: Deep-dive conversations where a working scientist unpacks how we know what we know, one paper, one idea, or whimsical detour at a time. Hosted by Dr. Jeffrey Zurek (P.Geo).