Crystallise: Recent Episodes

Crystallise Podcast

Crystallise is your weekly science fix! Join us as we talk about all things sciencey - from notable scientists who were forgotten from the history books, to the controversial CRISPR babies, and the development of synthetic blood. We promise you'll soon be just as obsessed with science as we are!

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This week on Crystallise: Rosie tells us about a clinical trial where sight was restored to a blind man using light-sensing proteins from algae! Ash discusses how the face markings of peregrine falcons act like sunglasses, helping them to hunt in sunny climates.   

Episode Sources:

  • Blind man regains some vision, with help from light-sensing algal protein.
  • Eye on the Cure: Can Algae Genes Restore Vision in First Optogenetics Human Trial?
  • Malar stripe size and prominence in peregrine falcons vary positively with solar radiation: support for the solar glare hypothesis.

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Music:

AhDah Kevin MacLeod (incompetech.com).   
Licensed under Creative Commons: By Attribution 3.0 License.   
http://creativecommons.org/licenses/by/3.0/.  

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This week on Crystallise, Ash discusses analysing the DNA of ancient poo to discover how our gut microbiome has changed over the millennia. Rosie shares some brand new research where gene editing was used to lower cholesterol - potentially permanently - in primates, and could soon be available for humans.

Episode Sources.

  • Piles of ancient poop reveal ‘extinction event’ in human gut bacteria.
  • In vivo CRISPR base editing of PCSK9 durably lowers cholesterol in primates.
  • One-time CRISPR hit lowers cholesterol in monkeys.
  • Got mutation? ‘Base editors’ fix genomes one nucleotide at a time.

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Music:

AhDah Kevin MacLeod (incompetech.com).
Licensed under Creative Commons: By Attribution 3.0 License.
http://creativecommons.org/licenses/by/3.0/.

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This week on Crystallise: Rosie shares some new research that may take us a step closer to a cure for Alzheimer's disease. Ash discusses the release of genetically modified mosquitos in the Florida Keys in an attempt to curb the spread of infectious diseases.   

Episode Sources:

  • Experimental drug shows potential against Alzheimer's disease.
  • Chaperone-mediated autophagy prevents collapse of the neuronal metastable proteome.
  • First genetically modified mosquitoes released in the United States.

Head to our Instagram or our website for more content, and if you liked this episode, support the podcast by leaving a review wherever you listen!     

Music:

AhDah Kevin MacLeod (incompetech.com).   
Licensed under Creative Commons: By Attribution 3.0 License.   
http://creativecommons.org/licenses/by/3.0/.  

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This week on Crystallise: Ash discusses some incredible new research that extracted DNA from cave soil to give us an insight into how Neanderthals lived over 100,000 years ago, and Rosie explores the science and ethics behind creating human-monkey chimeric embryos.

Episode sources:

  • Neanderthal DNA extracted from cave dirt shows population movements 100,000 years ago.
  • Unearthing Neanderthal population history using nuclear and mitochondrial DNA from cave sediments.
  • First monkey–human embryos reignite debate over hybrid animals.
  • Human-Monkey Chimeras Shed Light on Development.
  • As scientists move closer to making part human, part animal organisms, what are the concerns?

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Music:

AhDah Kevin MacLeod (incompetech.com).
Licensed under Creative Commons: By Attribution 3.0 License.
http://creativecommons.org/licenses/by/3.0/.

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Why do humans enjoy eating spicy food? This week, Rosie explores the psychology behind why we choose to eat food with chillies in it, even when it can be physically painful, and the possible health benefits of adding more spice to your life. In our SNPit, Ash discusses a study investigating how humans perceive emotions in screams.

Episode Sources:

  • Why Does Spicy Food Taste Hot?
  • A pleasure to burn: Why do people like spicy foods?
  • Gender differences in the influence of personality traits on spicy food liking and intake.
  • Antimicrobial and Anti-Virulence Activity of Capsaicin Against Erythromycin-Resistant, Cell-Invasive Group A Streptococci.
  • Antimicrobial Properties of Chili Peppers.
  • Food bacteria-spice survey shows why some cultures like it hot.
  • Spicy food may curb unhealthy cravings for salt.
  • Chili peppers for a healthy gut: Spicy chemical may inhibit gut tumors.
  • Neurocognitive processing efficiency for discriminating human non-alarm rather than alarm scream calls.

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Music:

AhDah Kevin MacLeod (incompetech.com).
Licensed under Creative Commons: By Attribution 3.0 License.
http://creativecommons.org/licenses/by/3.0/.

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How many senses do you think you have? This week, Ash takes us on a tour of the senses, from those you know to those you might never have even known existed. In our SNP, Rosie shares the story of a woman who urinates alcohol.

Episode Sources:

  • The Five (and More) Senses.
  • Humans have a lot more than five senses — here are 18.
  • You Know the Five Human Senses — Here Are Four You Don't.
  • People blind from birth use visual brain area to improve other senses: Can hear and feel with greater acuity.
  • Preserved Functional Specialization for Spatial Processing in the Middle Occipital Gyrus of the Early Blind.
  • Is there a universal hierarchy of human senses?
  • Doctors Have Reported The First Known Case of a Person Who Urinates Alcohol.

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Music:

AhDah Kevin MacLeod (incompetech.com).
Licensed under Creative Commons: By Attribution 3.0 License.
http://creativecommons.org/licenses/by/3.0/.

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Honey is often said to have healing powers, but how much of that is true, and how much a myth? In this episode, Rosie looks into the effects of honey on healing and hay fever, and why eating too much of some types of honey might be a bad thing. In our SNPit, Ash discusses some new research showing that, like humans, octopuses might be having dreams.

Episode Sources:

  • Wasps, bees and ants: nature’s honey makers.
  • Manuka honey inhibits the development of Streptococcus pyogenes biofilms and causes reduced expression of two fibronectin binding proteins.
  • Honey could be effective at treating and preventing wound infections.
  • Honey: A Biologic Wound Dressing.
  • Patients Should Ask Surgeons About Using Honey To Heal Wounds.
  • New Study Says Honey Is Better For Colds Than Drugs. Here's What You Need to Know.
  • Honey Could Be Making Us Sick Due to Contamination With Liver-Harming Toxins, Study Suggests.
  • Octopuses, like humans, sleep in two stages.

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Music:

AhDah Kevin MacLeod (incompetech.com).
Licensed under Creative Commons: By Attribution 3.0 License.
http://creativecommons.org/licenses/by/3.0/.

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The placebo effect is a powerful phenomenon where non-active treatments result in an improvement of symptoms, but how does it work? In this week's episode, Ash explains some of the reasons behind this effect, and how our brains can be tricked into thinking a treatment is working.
In the SNPit, Rosie discusses how the 18-year-old murder conviction of Kathleen Folbigg may have just been overturned by the power of whole-genome sequencing.

Episode Sources.

  • Is the placebo effect real?
  • The weird power of the placebo effect, explained.
  • The neuroscience of placebo effects: connecting context, learning and health.
  • A radical new hypothesis in medicine: give patients drugs they know don’t work.
  • What is the placebo effect? An impressive demonstration of mind over matter.
  • Explainer: what is the placebo effect and are doctors allowed to prescribe them?
  • Placebo Effect in the Treatment of Depression and Anxiety.
  • Kathleen Folbigg’s children likely died of natural causes, not murder. Here’s the evidence my team found.

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Music:

AhDah Kevin MacLeod (incompetech.com).
Licensed under Creative Commons: By Attribution 3.0 License.
http://creativecommons.org/licenses/by/3.0/.

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Are we spending too much time looking at screens? In this episode, Rose investigates the potential negative health effects of blue light—from poor sleep, to macular degeneration, and even premature aging—and what we can do to avoid it. In our SNPit, Ash discusses a new study where scientists have created tiny crying tear glands in a dish.

Episode Sources:

  • Blue light emitted by screens damages our sleep, study suggests
  • Artificial light from digital devices lessens sleep quality.
  • Blue light may not be as bad for sleep as suspected, new study argues.
  • Daily blue-light exposure shortens lifespan and causes brain neurodegeneration in Drosophila.
  • Chemists discover how blue light from digital devices speeds blindness.
  • Study links night exposure to blue light with breast and prostate cancer.
  • Blue Light Exposure May Make You Hungrier, Study Suggests.
  • Individuals exposed to blue wavelength lights experienced faster reaction times.
  • Blue-enriched white light to wake you up in the morning.
  • Two hours of evening reading on a self-luminous tablet vs. reading a physical book does not alter sleep after daytime bright light exposure.
  • Scientists grew tiny tear glands in a dish — then made them cry.

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Music:

AhDah Kevin MacLeod (incompetech.com).
Licensed under Creative Commons: By Attribution 3.0 License.
http://creativecommons.org/licenses/by/3.0/.

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Do you look after your personal flora? Doing so might be crucial to living a healthy life! In this episode, Ash explores the human gut microbiome—what it is, what it does for us, and how to take care of it. In our SNPit, Rosie discusses a recent study that combined biology and physics to explain the mystery behind how egg cells get so large.
Episode Sources:

  • Role of the gut microbiota in nutrition and health.
  • The Nutrition Source: The Microbiome.
  • Antibiotics alter the gut microbiome and host health.
  • The gut microbiome in health and in disease.
  • Dynamics of hydraulic and contractile wave-mediated fluid transport during Drosophila oogenesis.
  • Study reveals how egg cells get so big.

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Music:

AhDah Kevin MacLeod (incompetech.com).
Licensed under Creative Commons: By Attribution 3.0 License.
http://creativecommons.org/licenses/by/3.0/.

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Why do we dream? And does eating cheese before sleeping make your dreams more vivid? In this week's episode, Rosie answers these questions and more as she delves into the science of dreaming. In our SNPit, Ash celebrates Brazil's first-ever home-built satellite, Amazonia-1, which was launched last week to keep an eye on deforestation in the Amazon rainforest.

Episode Sources:

  • Scientists identify parts of brain involved in dreaming
  • The neural correlates of dreaming
  • Why Do Memories of Vivid Dreams Disappear Soon After Waking Up?
  • Dreaming May Help Relieve a Bad Day
  • Learning while you sleep: Dream or reality?
  • How our dreams prepare us to face our fears
  • It's black and white: TV influences your dreams
  • Sweet Dreams Are Made of Cheese
  • Brazil’s first homemade satellite will put an extra eye on dwindling Amazon forests

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Music:

AhDah Kevin MacLeod (incompetech.com)
Licensed under Creative Commons: By Attribution 3.0 License
http://creativecommons.org/licenses/by/3.0/

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Does drinking coffee make you live longer? In this weeks episode, Ash discusses the positive (and negative) health effects of coffee. For our SNPit—some new research using Neanderthal mini-brains to investigate how they were different from modern humans.

Episode Sources:

  • Coffee consumption and health: umbrella review of meta-analyses of multiple health outcomes
  • Generalised anxiety disorder in adults
  • Reintroduction of the archaic variant of NOVA1 in cortical organoids alters neurodevelopment
  • Mini brains genetically altered with CRISPR to be Neanderthal-like

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Music:

AhDah Kevin MacLeod (incompetech.com)
Licensed under Creative Commons: By Attribution 3.0 License
http://creativecommons.org/licenses/by/3.0/

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Conspiracy theories have thrived during the COVID-19 pandemic, but why do people believe in them? In this week's episode, Rosie discusses the psychology behind belief in conspiracies, mistrust of science, and how to combat "fake news". In our SNPit, Ash tells us about an incredible new technology that uses the heat of your body to charge batteries.

Episode Sources:

  • Strange conspiracy theories: from 5G to Meghan Markle
  • Why people latch on to conspiracy theories, according to science
  • Does Self-Love or Self-Hate Predict Conspiracy Beliefs? Narcissism, Self-Esteem, and the Endorsement of Conspiracy Theories
  • The social consequences of conspiracism: Exposure to conspiracy theories decreases intentions to engage in politics and to reduce one's carbon footprint
  • Connecting the dots: Illusory pattern perception predicts belief in conspiracies and the supernatural
  • Anxious attachment and belief in conspiracy theories
  • Some Capitol Rioters Didn't Vote In Election They Tried To Overturn: Report
  • Why do people still believe in conspiracy theories?
  • Belief echoes: The persistent effects of corrected misinformation
  • Coronavirus misinformation: quantifying sources and themes in the COVID-19 ‘infodemic’
  • Fake news game confers psychological resistance against online misinformation
  • New wearable device turns the body into a battery

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Music:

AhDah Kevin MacLeod (incompetech.com)
Licensed under Creative Commons: By Attribution 3.0 License
http://creativecommons.org/licenses/by/3.0/

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Henrietta Lacks' cells can be found in thousands of labs all over the world, but she never gave consent for that to happen. In this week's episode, Ash discusses the contributions Henrietta's cells have made to science, and whether we should still be using them at all. In our SNPit, Rosie shares some peculiar research about how the presence of parasitic worms may slow down aging.

Episode Sources:

  • Henrietta Lacks: science must right a historical wrong
  • Deal done over HeLa cell line
  • HeLa cells (1951)
  • Henrietta Lacks’ ‘Immortal’ Cells
  • The parasitic worm product ES-62 promotes health- and life-span in a high calorie diet-accelerated mouse model of ageing
  • Gross ways to live long: Parasitic worms as an anti-inflammaging therapy?

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Music:

AhDah Kevin MacLeod (incompetech.com)
Licensed under Creative Commons: By Attribution 3.0 License
http://creativecommons.org/licenses/by/3.0/

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How does hormonal birth control affect your body? In this week's episode, we discuss the effects of hormonal birth control on your brain, your blood, and your weight, and some of the possible alternatives. For our SNPit, Ash explores some new research that could be a solution for the global food waste problem.

Episode Sources:

  • In Ancient Times, Flowers and Fennel For Family Planning
  • The Greatest Contraceptive Was Silphium – A Plant That The Romans Ate To Extinction
  • Carrot seed for contraception: A review
  • The birth of the Pill
  • The Economic Impact of the Pill
  • The surprising link between women’s brains and the birth control pill | Sarah E. Hill | TEDxVienna
  • Birth control pills increase risk of ischemic stroke
  • Women's estradiol predicts preference for facial cues of men's testosterone
  • Oral contraceptive use in women changes preferences for male facial masculinity and is associated with partner facial masculinity
  • Study Finds Key Brain Region Smaller in Birth Control Pill Users
  • Menstrual cycle and hormonal contraceptive use modulate human brain structure
  • Effect of birth control pills and patches on weight
  • Oral Contraceptive Use Impairs Muscle Gains in Young Women
  • Daré Bioscience and Bayer –MONTHLY HORMONE-FREE BIRTH CONTROL RING
  • What you should know about Phexxi, the new birth control gel
  • Gossypol: a contraceptive for men
  • Efficacy and Safety of an Injectable Combination Hormonal Contraceptive for Men

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Music:

AhDah Kevin MacLeod (incompetech.com)
Licensed under Creative Commons: By Attribution 3.0 License
http://creativecommons.org/licenses/by/3.0/

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Advertised to help with anything from wrinkles to arthritic pain, collagen is the protein of the moment, but do collagen supplements actually do anything? In this weeks episode, Ash investigates collagen, and whether you should save or spend your money. In our SNPit, Rosie talks about how the future of data could be in bacteria.

Episode Sources:

  • What is collagen?
  • Do collagen supplements really help your muscles grow and skin glow?
  • Eating Collagen Is Becoming a Health Fad, And We Can Only Sit Back And Sigh
  • NTU scientists discover fish scale-derived collagen effective for healing wounds
  • Why does skin wrinkle with age? What is the best way to slow or prevent this process?
  • Collagen-Based Biomaterials for Wound Healing
  • How we can store digital data in DNA | Dina Zielinski
  • Robust direct digital-to-biological data storage in living cells
  • Scientists ‘program’ living bacteria to store data

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Music:

AhDah Kevin MacLeod (incompetech.com)
Licensed under Creative Commons: By Attribution 3.0 License
http://creativecommons.org/licenses/by/3.0/

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Are we living through a mass extinction? This week, Rosie looks into mass extinction events and how they have shaped our planet. In our SNPit, Ash discusses the psychology of organised monkey crime.

Episode Sources:

  • Billions of years ago, the rise of oxygen in Earth’s atmosphere caused a worldwide deep freeze
  • Poisoned Planet: The Great Oxygenation Event
  • New Theory For What Caused Earth's Second-Largest Mass Extinction
  • Metal-induced malformations in early Palaeozoic plankton are harbingers of mass extinction
  • Familiar Culprit May Have Caused Mysterious Mass Extinction
  • The Devonian Extinction Saw the Oceans Choke to Death
  • On impact and volcanism across the Cretaceous-Paleogene boundary
  • Here's What Happened the Day the Dinosaurs Died
  • Dino-Killing Asteroid Hit Just the Right Spot to Trigger Extinction
  • The Earth's Sixth Mass Extinction Is Accelerating
  • Earth Is Not in the Midst of a Sixth Mass Extinction
  • Bali’s thieving monkeys can spot high-value items to ransom

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Music:

AhDah Kevin MacLeod (incompetech.com)
Licensed under Creative Commons: By Attribution 3.0 License
http://creativecommons.org/licenses/by/3.0/

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Strange things can be found in lakes — animals that have turned to stone, or enormous hidden pockets of carbon dioxide. In this episode, Ash reveals the science behind three unusual lakes. In our SNPit, Rosie discusses some new research that shows how identical twins are not really identical.

Episode sources:

  • Defusing Africa’s Killer Lakes
  • The Lake Nyos Incident Is One Of History's Spookiest And Deadliest Disasters
  • This Alkaline African Lake Turns Animals into Stone
  • Lake That Turns Animals to Stone? Not Quite
  • DNA Study Deepens Mystery of Lake Full of Skeletons
  • The Skeletons at the Lake
  • Identical Twins Are Not So Identical, Study Suggests
  • Differences Between Germline Genomes of Monozygotic Twins

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Music:

AhDah Kevin MacLeod (incompetech.com)
Licensed under Creative Commons: By Attribution 3.0 License
http://creativecommons.org/licenses/by/3.0/

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Why do we celebrate the new year on January 1st? In this episode, Rosie discusses how methods of developing calendars and marking time have evolved in different cultures. In our SNPit, Ash takes a look at whether mask-wearing during the COVID-19 pandemic could have a detrimental effect on children's ability to develop emotion-reading skills.

Episode sources:

  • Aboriginal Stonehenge: Stargazing in Ancient Australia
  • History of our Calendar
  • Keeping Track of Time
  • The Mayan Calendar System
  • Explainer: the Seasonal Calendars of Indigenous Australia
  • Why is the Ethiopian Calendar 7 Years Behind?
  • Covering Faces Around Kids Won't Mask Emotions
  • Children’s Emotion Inferences From Masked Faces: Implications for Social Interactions During COVID-19

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Music:

AhDah Kevin MacLeod (incompetech.com)
Licensed under Creative Commons: By Attribution 3.0 License
http://creativecommons.org/licenses/by/3.0/

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Have you had a DNA test? This week, Ash tells us all about genetic testing, what it is, why you might want to do it, and how not to do it (i.e., why 23andMe is a bad idea). In our SNP, some new research into how both sparrows and humans use wormwood as preventative medicine.

Episode sources:

Angelina Jolie, Inherited Breast Cancer and the BRCA1 Gene

My Medical Choice - Angelina Jolie

The Limits of Ancestry DNA Tests, Explained

23andMe Is Terrifying, but Not for the Reasons the FDA Thinks

It's Not Just Humans. Sparrows Have Been Seen Using Preventative Medicine

Sparrows Use a Medicinal Herb to Defend Against Parasites and Increase Offspring Condition

We'll be taking a short break over the holidays, but in the meantime head to our Instagram or our website for more content, and if you liked this episode, support the podcast by leaving a review wherever you listen!

Music:

AhDah Kevin MacLeod (incompetech.com)
Licensed under Creative Commons: By Attribution 3.0 License
http://creativecommons.org/licenses/by/3.0/

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dDid she sell seashells by the seashore? Probably not, but she did sell fossils. This week, Rosie takes a look at the life and legacy of pioneering paleontologist Mary Anning, who made a name for herself in the male-dominated geological spaces of the early 19th century through her incredible discoveries of Jurassic-age fossils. In our SNP, Ash discusses a new study describing how the 'stuff' we create now outweighs life on Earth.

For more on the topics discussed in this episode, have a look at these great articles:

She Sells Seashells and Mary Anning: Metafolklore with a Twist

Discovering Fossils: Geology of Lyme Regis

Mary Anning: The Unsung Hero of Fossil Discovery

Mary Anning: English Fossil Hunter and Anatomist

Human ‘Stuff’ Now Outweighs All Life on Earth

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Music:

AhDah Kevin MacLeod (incompetech.com)
Licensed under Creative Commons: By Attribution 3.0 License
http://creativecommons.org/licenses/by/3.0/

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Real science or pseudoscience? This week, Ash dives into the world of alternative medicine to talk all things homeopathy! In our SNP, Rosie tells us about an unusual approach to dingo conservation.

For more info on homeopathy, check out these articles!

  • NHS: Homeopathy
  • What is Homeopathy?
  • Why I Changed My Mind About Homeopathy

Intrigued by tube man-dingo conservation? Have a read of this:

  • Wacky Tube Men Could Keep Dingoes Away From Livestock in Australia
  • Tube Man Waves Bye-Bye to Wolves
  • Automated Shepherds: Responses of Captive Dingoes to Sound and an Inflatable, Moving Effigy

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Music:

AhDah Kevin MacLeod (incompetech.com)
Licensed under Creative Commons: By Attribution 3.0 License
http://creativecommons.org/licenses/by/3.0/

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92% of the world's population live with dangerous levels of air pollution - but what does this really mean? This week, Rosie delves into the past, present, and future of air pollution and what it's doing to our lungs and our brains. In our SNPit, Ash explains how humans have driven the evolution of a sought-after Chinese herbal medicine. Listen now!

To read more about air pollution, head to these links:

  • Historic Smog Death Toll Rises
  • WHO Finds 92% of the World’s Population Exposed to Unsafe Levels of Air Pollution
  • Half of the World's Population Exposed to Increasing Air Pollution
  • Air pollution Speeds Up Aging of the Lungs and Increases Chronic Lung Disease Risk
  • The Health Effects of the 2019-20 Bushfires
  • Damage Similar to Alzheimer's Has Been Found in Young Brains Exposed to Air Pollution
  • Coronavirus: Lockdown’s Effect on Air Pollution Provides Rare Glimpse of Low-Carbon Future

And if you're intrigued by the evolution of the Fritillaria delavayi herb, here's the research behind it:

  • Commercial Harvesting Has Driven the Evolution of Camouflage in an Alpine Plant

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Music:

AhDah Kevin MacLeod (incompetech.com)
Licensed under Creative Commons: By Attribution 3.0 License
http://creativecommons.org/licenses/by/3.0/

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Do you know what's in your food? This week, we discuss the science behind genetically modified organisms - AKA GMOs - in agriculture; what they are, how they're made, and whether they should be a cause for concern.
In our SNPit - why are human brains so much larger than other primates? Rosie discusses some recent research that has attempted to figure this out by 'humanising' a monkey brain.

If you want to read more about GMO crops, have a look at these great articles:

What Are GMOs and GM Foods?

Genetically Modified Organisms (GMOs): Transgenic Crops and Recombinant DNA Technology

Science and History of GMOs and Other Food Modification Processes

The Truth about Genetically Modified Food

Freaked out by human-monkey hybrids? Check out the these for more info:

Uh-Oh, Scientists Used Human Genes to Make Monkey Brains Bigger

Human-Specific ARHGAP11B Increases Size and Folding of Primate Neocortex in the Fetal Marmoset

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Music:

AhDah Kevin MacLeod (incompetech.com)
Licensed under Creative Commons: By Attribution 3.0 License
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What are you scared of? This week, it's all about phobias: listen to find out why public speaking can be terrifying and why you have that weird dislike of pictures of holes. In our SNPit, Ash tells us how our brains deceive us into thinking prettier food is healthier.

To read more about phobias, check out these articles:

Why Do We Develop Certain Irrational Phobias?

Serotonin Synthesis and Reuptake in Social Anxiety Disorder

Unlocking The Psychology Of Snake And Spider Phobias

Common phobia you have never heard of: Fear of holes may stem from evolutionary survival response

Coffee bubble phobia may be deep-seated aversion to parasites

My Fear Of Spiders Was So Debilitating, I’m In Exposure Therapy. Here’s What It’s Like.

How Virtual Reality Can Help Overcome the Fear of Driving

For more about why prettier food is perceived as healthier, have a look at this:

Why Consumers Think Pretty Food Is Healthier

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Music:

AhDah Kevin MacLeod (incompetech.com)
Licensed under Creative Commons: By Attribution 3.0 License
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This week, Ash delves into the difficult topic of scientific racism, the eugenics movements of the early 20th century, and how it's still with us today. In our SNP, we discuss glowing, biofluorescent platypuses. As if they could get any weirder..

If you want to read more about eugenics, have a look at these articles:

  • The Forgotten Lessons of the American Eugenics Movement
  • Human Testing, the Eugenics Movement, and IRBs

For more on biofluorescence and glowing playtpuses, have a read of these:

  • The Mystery of The Platypus Deepens With The Discovery of Its Biofluorescent Fur
  • Glow Baby Glow: Biofluorescence vs. Bioluminescence
  • Biofluorescence in the Platypus (Ornithorhynchus anatinus)

Check out our Instagram or our website for more content, and if you liked this episode, support the podcast by leaving a review wherever you listen!

Music:

AhDah Kevin MacLeod (incompetech.com)
Licensed under Creative Commons: By Attribution 3.0 License
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Have you ever seen a ghost? This week it's a spooooky special, and Rosie takes a scientist's approach to explaining the paranormal. In our SNP, Ash gives everyone nightmares and explains how some people end up being declared dead while still alive.

To read more about ghosts, head to these links:

  • Royal ghost stories: Hampton Court Palace
  • An Investigation into the Alleged Haunting of Hampton Court Palace: Psychological Variables and Magnetic Fields
  • Vectorial Cerebral Hemisphericity as Differential Sources for the Sensed Presence, Mystical Experiences and Religious Conversions
  • Sleeping With the Entity – A Quantitative Magnetic Investigation of an English Castle’s Reputedly ‘Haunted’ Bedroom
  • Carbon Monoxide Manifestations: A Real Life Ghost Story
  • Seeing Ghosts in Your Bedroom? It's Sleep Paralysis

For more on the Lazarus Syndrome, check out this article:

  • A Woman Declared Dead After a Crash Was Put in a Morgue Freezer. Then Someone Noticed Her Breathing

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AhDah Kevin MacLeod (incompetech.com)
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You might have heard of Theranos and Elizabeth Holmes, but do you know the full story of the biotech company that scammed billions of dollars from investors? This week, Ash dives into the facts behind the con. In our SNPit, Rosie makes it up to wasps, as they may be the answer to the growing antibiotic resistance crisis.

To read more about Theranos and Elizabeth Holmes, have a look at these articles:

  • What Exactly Was The Theranos Edison Machine Supposed To Do?
  • The Rise and Fall of Elizabeth Holmes

For more info on wasp venom as an antibiotic, have a read of this:

  • Wasp Venom Used to Potentially Combat Antibiotic-Resistant Bacteria

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AhDah Kevin MacLeod (incompetech.com)
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Have you ever thought about living forever? This week, Rosie talks about aging: why we age, and how we might be able to slow it down or even reverse it. In our SNPit, Ash will tell you the best way to never miss the bus again.

To read more about aging, head to these links:

  • Researchers Claim World Record for Longest Life a Case of ID Fraud
  • What Is the Genetic Theory of Aging?
  • More Insights into the “Longevity Gene”
  • It's Mathematically Impossible to Beat Aging, Scientists Say
  • Could a Faecal Transplant One Day Be the Secret of Eternal Youth?
  • How to Live Forever: Meet the Extreme Life-Extensionists

For more info on how to spend less time waiting for buses - have a look at this study:

  • Want to Wait Less at the Bus Stop? Beware Real-Time Updates

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AhDah Kevin MacLeod (incompetech.com)
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This week on Crystallise: Ash tells us the story of Marie Maynard Daly, the first African American woman to earn a PhD in chemistry in the United States, and just a few of her groundbreaking discoveries. For our SNPit, Rosie discusses some recent research into how virtually swapping bodies with a friend can lead to a loss of your sense of self, and even loss of memories.

To learn more about Marie Maynard Daly, head to these links:

  • Marie Maynard Daly Was the First African American Woman to be Awarded a PhD in Chemistry in the USA
  • Columbia University: Marie Maynard Daly
  • Science History Institute: Marie Maynard Daly

To read more about how body swapping isn't quiiite the same in reality as it is in science fiction - have a look at these:

  • 'Swapping Bodies' With a Friend Swaps Your Beliefs, Strange Experiment Reveals
  • Perception of Our Own Body Influences Self-Concept and Self-Incoherence Impairs Episodic Memory

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AhDah Kevin MacLeod (incompetech.com)
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Why do women live longer than men? Well, it could be down to the Y chromosome. This week, we discuss the Y chromosome, how it seems to be mysteriously vanishing in older men, and the impacts this could be having on men’s health. In our SNPit, Ash tells us about how bird brains really aren’t that different from our own.

Check out these links for more info on the Y chromosome:

  • Y Chromosome Factsheet
  • Y Chromosome Evolving Rapidly
  • Y Chromosome Is More Than a Sex Switch
  • Loss of Y Chromosome Can Explain Shorter Life Expectancy, Higher Cancer Risk for Men
  • Loss of Y Chromosome is a Risk Factor for Alzheimer's dDisease: Why Do Men Have Shorter Lives Than Women?

For more on birdbrains, head over here:

  • Bird Brains Are Far More Humanlike Than Once Thought
  • Brainiacs, Not Birdbrains: Crows Possess Higher Intelligence Long Thought a Primarily Human Attribute

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AhDah Kevin MacLeod (incompetech.com)
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This week on Crystallise: Ash explains the global decline in insect diversity, and the devastating impacts that it could have on our planet's ecosystem. In our SNPit, Rosie gives us another reason why Australia is out to get you - the venomous trees of Queensland.

To learn more about insect declines and the importance of protecting diversity, check out these links:

  • Plummeting Insect Numbers 'Threaten Collapse of Nature'
  • Robust Evidence of Declines in Insect Abundance and Biodiversity
  • Why Insect Populations are Plummeting—and Why it Matters
  • More Than 75 Percent Decline Over 27 Years in Total Flying Insect Biomass in Protected Areas
  • Arthropod Decline in Grasslands and Forests is Associated with Landscape-Level Drivers
  • Parallel Declines in Pollinators and Insect-Pollinated Plants in Britain and the Netherlands
  • Worldwide Decline of the Entomofauna: A Review of its Drivers
  • Climate-Driven Declines in Arthropod Abundance Restructure a Rainforest Food Web
  • Meta-Analysis Reveals Declines in Terrestrial but Increases in Freshwater Insect Abundances

For more info about the stinging trees of Australia, have a look at these articles:

  • Australian Stinging Trees Inject Scorpion-Like Venom. The Pain Lasts for Days
  • Neurotoxic Peptides from the Venom of the Giant Australian Stinging Tree
  • ‘The Worst Kind of Pain You Can Imagine’ – What it’s Like to be Stung by a Stinging Tree

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AhDah Kevin MacLeod (incompetech.com)
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Could there be life on Venus? This week we discuss the new findings of possible microbial life on our next-door neighbour, and why we haven't found aliens elsewhere in our Universe. In our SNPit, Ash takes us inside the digestive tract and tells us about how we can check on our gut microbiome.

For more on the Fermi Paradox and the hunt for life on other planets, head to these links:

  • Where Is Everyone? 4 Possible Explanations for the Fermi Paradox
  • Research Sheds New Light on Intelligent Life Existing Across the Galaxy
  • Goldilocks Worlds: Just Right For Life?
  • Kepler Telescope Discovers Most Earth-Like Planet Yet
  • Australian Telescope Finds No Signs of Alien Technology in 10 Million Star Systems
  • The Detection of Phosphine in Venus’ Clouds is a Big Deal – Here’s How We Can Find Out If it’s a Sign of Life

To read more about how we can check on the gut microbiome - have a look at this:

  • Sampling the Gut Microbiome With an Ingestible Pill

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AhDah Kevin MacLeod (incompetech.com)
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This week, we take a look into the infamous CRISPR babies scandal, and discuss the ethics of gene editing. In our SNPit, Rosie tells us about how just like us, bats also use baby talk.

For more info on He Jianku, the CRISPR babies, and gene editing, head to these links:

  • Gene Editing Before CRISPR: A Brief History
  • CRISPR timeline
  • A Simple Guide to CRISPR, One of the Biggest Science Stories of the Decade
  • Genome Editing: Past, Present, and Future
  • A Brief History of Genome Editing
  • Genome-Edited Baby Claim Provokes International Outcry
  • Chinese Scientists Are Outraged by Reports of Gene-Edited Babies

Fascinated by bat baby talk? Check out these links:

  • The Science Behind 'Baby Talk'
  • Baby Talk is Universal
  • Bats Use Baby Talk To Teach Their Pups, Researchers Say

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AhDah Kevin MacLeod (incompetech.com)
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This week, we talk all about psychedelic drugs and how they could be extremely effective treatments for depression. In our SNPit, Ash tells us a story about ducks, locusts, and why you should be wary of what you read in the media.

For more on psychedelics and the studies discussed in this ep - check out these links:

  • Know Your Brain: Default Mode Network
  • Why Interrupting the Default Mode Network with Psychedelics is Good for Mental Health
  • Ancient Hallucinogens Found in 1,000-Year-Old Shamanic Pouch
  • Flashback: LSD Creator Albert Hofmann Drops Acid for the First Time
  • Antianxiety and Antidepressant Effects From a Single Dose of Psychedelic Drug Persist Years Later in Cancer Patients
  • Psychedelic Drugs Promote Neural Plasticity in Rats and Flies
  • Microdosed LSD: Finally A Breakthrough For Alzheimer’s Disease?

To get the full story of the ducks and the locusts, head to these articles:

  • China May Send Ducks to Battle Pakistan's Locust Swarms
  • China Will Not Send Ducks to Tackle Locusts in Pakistan, Says Expert
  • Is a Duck Army Coming for Pakistan’s Locusts? Not So Fast

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AhDah Kevin MacLeod (incompetech.com)
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This week, we venture deep underground and deep into space to learn all about volcanoes, on Earth and other planets! In our SNPit, learn about why your vision could be more similar to flies than you think.

Read more about volcanoes on Earth and in space at these links:

  • Volcanoes, Explained
  • Subduction Zone Volcanism: The Earth recycles itself!
  • Volcanoes: Geoscience Australia
  • Researchers Discover What May Be 37 Active Volcanoes on Venus
  • Scientists Discover Volcanoes on Venus Are Still Active
  • Active Volcanoes of Our Solar System

For more on flies and eyes have a look at these:

  • Flies Are Tricked By Optical Illusions Just Like Us
  • Mechanism For Analogous Illusory Motion Perception in Flies and Humans
  • Cats and Illusory Motion
  • This Cat is As Mesmerised By Optical Illusions As You Are

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AhDah Kevin MacLeod (incompetech.com)
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This week on Crystallise, Rosie tells us everything about clinical trials: what they are, what happens when they go wrong, and why the announcement of a Covid-19 vaccine in Russia outraged scientists worldwide. In our SNPit, Ash describes the unexpected effects of global coronavirus lockdowns on conservation efforts.

For more info on the topics discussed this week, check out the links below!

  • Legumes, Lemons and Streptomycin: A Short History of the Clinical Trial
  • How the Media Left Evidence out in the Cold
  • No Immunity From Immunity
  • Russia’s Fast-Track Coronavirus Vaccine Draws Outrage Over Safety
  • Global Report: WHO in Talks With Russia Over Covid-19 Vaccine
  • Coronavirus: How Will the World Vaccinate Seven Billion?

For more about the "anthropause" and the "Great Human Confinement Experiment" have a look at these:

  • The Pandemic Stilled Human Activity. What Did This ‘Anthropause’ Mean for Wildlife?
  • COVID-19 Lockdown Allows Researchers to Quantify the Effects of Human Activity on Wildlife
  • COVID-19 Pandemic and Associated Lockdown as a “Global Human Confinement Experiment” to Investigate Biodiversity Conservation

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AhDah Kevin MacLeod (incompetech.com)
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This week, Ash tells us the story of Rosalind Franklin - a pioneer of X-ray crystallography and a crucial contributor to the discovery of the structure of DNA. In our SNPit, how metal-"breathing" bacteria could change electronics and help clean nuclear waste.

To read more about Rosalind Franklins discoveries, have a look at these links:

  • DNA From the Beginning: Rosalind Franklin
  • Rosalind Franklin: A Crucial Contribution
  • Sexism Pushed Rosalind Franklin Toward the Scientific Sidelines During Her Short Life, But Her Work Still Shines on Her 100th Birthday

For more info from our SNPit, head here!

  • Metal-Breathing Bacteria Could Transform Electronics, Biosensors, and More
  • Microscope Reveals How Bacteria "Breath" Toxic Metals
  • 99% Invisible: 10 Thousand Years

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AhDah Kevin MacLeod (incompetech.com)
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This week on Crystallise: Rosie tells us about the history of smallpox, and some new ancient Viking DNA research that sheds light on it's mysterious origins. In our SNPit, how to diagnose cancerous dinosaurs!

Read more about smallpox here:

  • Vikings Had Smallpox and May Have Helped Spread the World's Deadliest Virus
  • Smallpox Found in Lithuanian Mummy Could Rewrite Virus' History
  • Mystery Solved: Scientists Now Know How Smallpox Kills
  • How Smallpox Claimed it's Final Victim

Interested in diagnosing dinosaurs? Check out these articles!

  • Doctors Diagnose Advanced Cancer - In a Dinosaur
  • First Case of Osteosarcoma in a Dinosaur: a Multimodal Diagnosis

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AhDah Kevin MacLeod (incompetech.com)
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This week: Ash delves into to science behind fad diets and Rosie tells us why you we should be removing the “guilty” from “guilty pleasure”.

For more about the paleo and keto diets, have a look at the links below:

  • Paleo Diet: What Is It And Why Is It So Popular?
  • Paleo Diet for Weight Loss
  • Should You Try the Keto Diet?
  • Ketogenic Diet for Weight Loss
  • What is the Keto Diet and Does it Work?
  • Ketogenic Diet: What are the Risks?

Take a look at the study behind guilty pleasures here:

  • Hedonism Leads to Happiness
  • Beyond Self-Control: Mechanisms of Hedonistic Goal Pursuit and it's Relevance for Well-Being

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AhDah Kevin MacLeod (incompetech.com)
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This week, we learn about Esther Lederberg - another overlooked female scientist who helped to lay the groundwork of modern molecular biology. In our SNPit, Ash tells us about how city planners are responsible for your bad hayfever.

Read more about Esther Lederberg and bacteriophages at the links below:

  • Esther Lederberg and Her Husband Were Both Trailblazing Scientists. Why Have More People Heard of Him?
  • Esther Lederberg, Pioneer of Bacterial Genetics
  • The Deadliest Being on Planet Earth - The Bacteriophage
  • Phage Therapy in the Post-antibiotic Era

Want to learn more about male trees, pollen, and hayfever? Check out these links:

  • The Reason Your Hayfever is So Bad? Blame Botanical Sexism
  • Hay Fever: What Happens When an Allergy Kicks In?

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AhDah Kevin MacLeod (incompetech.com)
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This week, Ash tells us about a mysterious flesh-eating bacteria that’s appeared near Melbourne, and the disease it causes – Buruli ulcer. In our SNPit, we talk about spider silk, and how it could be the material of the future.

Read more about Buruli Ulcer at the links below:

  • Buruli ulcer: Review of a Neglected Skin Mycobacterial Disease
  • WHO: Buruli ulcer Factsheet
  • Australia has a Flesh-Eating Bacteria Problem

Interested in reading more about spider silk? Check out these links!

  • Silk Feeding as an Alternative Foraging Tactic in a Kleptoparasitic Spider Under Seasonally Changing Environments
  • Spider Silk Violin Strings
  • 1 Million Spiders Make Rare Golden Cloth
  • Artificial Spider Silk: Why You Should Care About it
  • A Marine Photosynthetic Microbial Cell Factory as a Platform for Spider Silk Production

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AhDah Kevin MacLeod (incompetech.com)
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This week, Rosie introduces us to the weird world of cryptozoology, and we learn a little bit of the science behind the pseudoscience. For our SNPit, Ash tells the story of Alfred Russel Wallace, Edwin Rist, and the Great Feather Heist. Listen now!

For more info on the Cryptids we discussed in this episode, head to the links below:

  • Why 19th-Century Naturalists Didn't Believe in the Platypus
  • How Australia Put Evolution on Darwin's Mind
  • The Littlest Human
  • Homo floresiensis: Making Sense on the Small-Bodied Hominin Fossils from Flores
  • Is the Loch Ness Monster Just a Big Eel?
  • Super Natural History: Loch Ness Edition

More about Alfred Russel Wallace and the Great Feather Heist below:

  • The Feather Heist: This American Life
  • The Great Feather Heist
  • How an Obsession With Rare Bird Feathers Turned Criminal
  • The Man Who Stole Bird Feathers

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AhDah Kevin MacLeod (incompetech.com)
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This week Ash talks about the history of plastics - from Celluloid to Tupperware - and how they were once considered the sustainable solution in our In Focus segment. In our SNPit, Rosie tells us about a new plan that could prevent the next pandemic.

Read more about the history of plastic and biodegradable alternatives below:

  • A Brief History of Plastic's Conquest of the World
  • The Invention of Plastic Materials from Parkesine to Polyester
  • A Brief History of the Invention of Plastics
  • John Wesley Hyatt - Plastics Hall of Fame
  • The Tupperware Effect, Empowering Women Around the World
  • Secret History of: Tupperware
  • Tupperware: Income Disclosure Summary
  • When Biodegradable Plastic Is Not Biodegradable
  • 'Biodegradable' Plastics Survive Three Years in Soil and Sea
  • Why Biodegradables Won't Solve the Plastic Crisis

More about the Global Immunological Observatory below:

  • Could a Global 'Observatory' of Blood Help Stop the Next Pandemic?
  • Science Forum: A Global Immunological Observatory to Meet a Time of Pandemics
  • Swine Flu Strain With Human Pandemic Potential Increasingly Found in Pigs in China

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AhDah Kevin MacLeod (incompetech.com)
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Have you donated blood? Less than 5% of Australians donate blood annually, but a donation can be lifesaving. This week, Rosie discusses the work being done by researchers around the world to try and create blood without the need for donors. In our SNPit, Ash introduces us to the weird and wonderful world of lab-produced milk, and how it could change the future of farming.

Read more about blood transfusions and how how scientists are tackling limited blood availability at the links below:

  • Blood lust: The early history of transfusion
  • What is the history of blood transfusion?
  • Artificial blood: Unsolvable biological puzzle or soon to be reality?
  • Platelet bioreactor-on-a-chip
  • Platelet biogenesis

Interested in lab grown milk? More information below!

  • What's wrong with dairy?
  • Milk's impact on the environment
  • Perfect day foods
  • TurtleTree labs
  • Milk grown in a lab is humane and sustainable. But can it catch on?
  • Milk minus the cows? Meet the Singapore start-up using stem cells to make milk
  • Got impossible milk? The quest for lab-made dairy

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AhDah Kevin MacLeod (incompetech.com)
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You’ve probably seen it all over Instagram, you might have been sucked into it yourself – people are crazy for indoor plants! But why is it such as obsession? Ash (a self-confessed plant addict) goes in focus this week on a few studies which might help explain it.
In our SNPit, Rosie takes us through some recent research investigating how bees can change the seasonal flowering of plants.

Read more about why you're obsessed with plants in the links below:

  • A Study of Interior Landscape Plants for Indoor Air Pollution Abatement
  • Stress-reducing effects of indoor plants in the built healthcare environment: The mediating role of perceived attractiveness
  • Why more millennials are buying into 'plant parenthood'
  • Put a ring on it? Millennial couples are in no hurry!
  • Millennials prefer cities to suburbs, subways to driveways

Interested in bees? See below for more info on how they influence plants, and how you can help save the bees!

  • Bumble bees damage plant leaves and accelerate flower production when pollen is scarce
  • Bees force plants to flower early by cutting holes in their leaves
  • 99% Invisible - On Beeing
  • Save the Bees Australia: Bee the Cure

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AhDah Kevin MacLeod (incompetech.com)
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This week, Rosie goes in focus to tell the story of Lise Meitner - a nuclear physicist who was integral to the discovery of nuclear fission - and we discuss the challenges faced by women in science. Ash continues the nuclear theme with her SNPit about the naming of medical imaging.

For more about Lise Meitner and the discovery of nuclear fission check out:

  • Lise Meitner and the Discovery of Fission by Ruth Lewin Sime
  • A Nobel Tale of Postwar Injustice by Elisabeth Crawford, Ruth Lewin Sime, and Mark Walker
  • Lise Meitner: a 20th century life in physics by Ruth Lewin Sime
  • On Element 93 by Dr Ida Noddack

Want to learn more about MRI? Head to these links:

  • https://www.nibib.nih.gov/science-education/science-topics/magnetic-resonance-imaging-mri
  • https://www.scientificamerican.com/article/nmr-imaging-in-medicine/
  • https://www.khanacademy.org/test-prep/mcat/physical-processes/proton-nuclear-magnetic-resonance/a/magnetic-resonance-imaging-mri

Music:

AhDah Kevin MacLeod (incompetech.com)
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