Dr Karl Podcast

Dr Karl Podcast

Dr Karl Podcast on pitkäikäinen tiedeaiheinen audio-ohjelma, jota tuottaa australialainen nuorisoradioasema triple j, joka on osa Australian yleisradioyhtiö ABC:tä. Ohjelman keskeisenä hahmona toimii tunnettu tiedeviestijä ja lääkäri Karl Kruszelnicki, joka tunnetaan kansainvälisesti nimellä Dr Karl. Hänen rinnallaan ohjelmaa juontaa tällä hetkellä Lucy Smith, ja ohjelmassa vierailee säännöllisesti eri alojen asiantuntijoita.

Ohjelman rakenne perustuu vahvasti vuorovaikutukseen ja yleisön osallistamiseen. Viikoittaisissa jaksoissa Dr Karl ja vierailevat tutkijat vastaavat kuulijoiden lähettämiin kysymyksiin, jotka kattavat laajan kirjon tieteen eri osa-alueita, kuten fysiikkaa, kemiaa, biologiaa ja tähtitiedettä. Sisältö ei rajoitu pelkästään perinteisiin akateemisiin aiheisiin, vaan siinä käsitellään usein arkipäivän ilmiöitä, urbaaneja legendoja ja tieteellisiä myyttejä, joita Dr Karl purkaa faktapohjaisesti mutta kansantajuisesti.

Dr Karl Podcast on tunnettu kyvystään selittää monimutkaisia tieteellisiä käsitteitä helposti lähestyttävässä muodossa. Kysymykset voivat vaihdella hyvin vakavista luonnontieteellisistä pohdinnoista outoihin ja humoristisiin havaintoihin, mikä tekee ohjelman sävystä dynaamisen. Ohjelma on toiminut vuosikymmenten ajan tärkeänä tiedekasvatuksen välineenä, ja se on onnistunut säilyttämään suosionsa useiden sukupolvien keskuudessa.

Vaikka ohjelma on tuotettu Australiassa ja se heijastaa sikäläistä radiokulttuuria, sen digitaalinen jakelu podcast-muodossa on laajentanut kuulijakuntaa maailmanlaajuisesti. Podcast tarjoaa kuulijoilleen viikoittaisen tietoiskun, jossa yhdistyvät uteliaisuus, kriittinen ajattelu ja pyrkimys ymmärtää ympäröivää maailmaa tieteen keinoin. Ohjelman laaja arkisto tarjoaa mahdollisuuden tarkastella tieteen kehitystä ja yhteiskunnallisten puheenaiheiden muutosta pitkällä aikavälillä. Jaksojen kesto on tyypillisesti noin 30–45 minuuttia, ja ne on suunnattu kaikille tieteestä ja ympäröivästä maailmasta kiinnostuneille kuulijoille.

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Jakson tiivistelmä

In this episode of Science with Dr. Carl, the host and Dr. Carl explore a wide range of scientific phenomena, from the mechanics of carbonation in drinks to the receding distance of the moon from Earth. The discussion covers why hot showers can trigger goosebumps, the physics behind why the sun isn't blue, and the science of static electricity in shopping trolleys. The episode also addresses listener questions regarding mass ladybird strandings, the physiological effects of yawning on hearing, and the possibility of a living universe. Finally, the hosts discuss the sensory benefits of sun-dried towels and the scientific reasoning behind why creative breakthroughs often occur during showers.

Luvut

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Kohokohdat

Water, H2O, they're bent like a boomerang. But carbon dioxide is a straight line.

00:05:09 · Dr. Carl explains the molecular geometry difference between water and carbon dioxide to describe how gas molecules fit between water molecules.

Fingernails, tectonic plates and the moon. They're all moving away at roughly the same rate, about three to four centimetres a year.

00:09:29 · Dr. Carl draws a comparison between various natural phenomena that are all experiencing a gradual recession or movement.

So what's happening is that you're accidentally activating your sympathetic nervous system.

00:13:33 · Dr. Carl explains the physiological reason why a sudden temperature change in a shower can trigger goosebumps.

So they kind of invented this study called tribology, which is the study of friction.

00:18:32 · Dr. Carl introduces the scientific term for the study of friction to explain static electricity buildup in trolley wheels.

Creative boredom is an incredibly important part of being a fully rounded human.

00:38:01 · The speaker explains why disconnecting from digital stimuli in the shower allows for creativity to emerge.

Jaksot

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Shower thoughts, electric shocks and ladybirds

In this episode of Science with Dr. Carl, the host and Dr. Carl explore a wide range of scientific phenomena, from the mechanics of carbonation in drinks to the receding distance of the moon from Earth. The discussion covers why hot showers can trigger goosebumps, the physics behind why the sun isn't blue, and the science of static electricity in shopping trolleys. The episode also addresses listener questions regarding mass ladybird strandings, the physiological effects of yawning on hearing, and the possibility of a living universe. Finally, the hosts discuss the sensory benefits of sun-dried towels and the scientific reasoning behind why creative breakthroughs often occur during showers.

05 marrask. 2026
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BONUS EP: We're giving away a Dr Karl shirt!

Hosts Lucy and Dr. Carl announce a special giveaway for the month of November. A listener who submits a question via text or Google form and is featured on the Science with Dr. Carl segment will have the opportunity to win one of Dr. Carl's iconic, asymmetric strawberry-patterned shirts. The shirt was custom-made by Dr. Carl's wife, Mary, under her bespoke brand, the House of Mary. The winner will be selected during the final show on Thursday, November 26. Participants are encouraged to submit questions via the provided text line or show notes link and must be available to take a call to participate in the segment.

03 marrask. 2026
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Night sweats, time travel and dog poo

In this episode of Science with Dr. Carl, the hosts answer a wide range of listener questions covering biology, physics, and everyday phenomena. The discussion explores topics such as the effects of hurricanes on flowers, the mechanics of binoculars, and the science behind night sweats after long-distance running. The conversation also delves into complex scientific concepts including the properties of antimatter, the unpredictability of turbulent airflow, and the albedo of a hypothetical water-covered moon. Additionally, the episode touches on biological mysteries like facial asymmetry, why dogs engage in coprophagia, and the physics behind gaining speed on a bike pump track.

29 lokak. 2026
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Bruising, cockatoo schedules and roasted potatoes

In this episode of Science with Dr. Karl, the hosts explore a wide range of scientific curiosities, from the biological mechanisms of avocado trees and the physics of heat absorption in cookware to the mechanics of bruising and wound healing. The discussion also covers why cyclones do not cross the equator due to the Coriolis effect and the impact of saltwater on sinus pressure. Dr. Karl further addresses listener questions regarding the expansion of the universe, the speed of light, and medical topics such as bunions and epilepsy-related déjà vu. The episode concludes with insights into sauna thermodynamics and information on how listeners can submit their own scientific inquiries.

22 lokak. 2026
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Coral bleaching, bioluminescence and intelligent fish

Host Lucy Smith sits down with marine scientists Mike Emsley and Daniel Ceccarelli from the Australian Institute of Marine Science to explore the complexities of reef monitoring, fish ecology, and the impacts of climate change. The discussion covers the daily work of surveying the Great Barrier Reef, the effectiveness of marine protected areas, and the environmental threats posed by deforestation and El Niño. The episode also addresses a variety of listener questions, ranging from shark behavior and evolutionary timelines to plant movement, bioluminescence, and fish intelligence. The experts conclude by discussing fish sentience, venomous species, and how the public can monitor reef health via the AIMS dashboard.

15 lokak. 2026