Logo
    Search

    About this Episode

    Hosts: Ed Brown, Penny Dumsday, Lucas Randall, Dr Cameron Webb

    00:00:58 A review study published in the journal Biological Conservation has found that over 40% of insect species are threatened with extinction.
    00:29:06 Queensland has seen record-breaking floods this year, and everyone knows that mosquitoes love water. But what do floods mean for mosquito-borne diseases?
    00:36:10 By studying sleepless flies, scientists have identified a gene that puts them to sleep when they need it the most. And interestingly, it doubles as part of their immune system.
    00:42:32 From our immune system to taste and even our emotions - our guts have a big influence on our brains. And now new research shows that gut bacteria can affect our our mental health.
    Dr. Cameron Webb is a medical entomologist from the University of Sydney and NSW Health Pathology primarily interested in mosquitoes, mosquito-borne disease management, insect repellents and wetland rehabilitation.


    This episode contains traces of Abigail Fraeman, Mars Exploration Rover (MER) deputy project scientist at JPL.

    Recent Episodes from Science On Top

    A quick update

    A quick update

    An update on what's happening with the show.

    The quick version: we're still here, but the world's on fire and things are a bit tough. We'll be back.

    Stay safe everyone.

     

    Wednesday 5 August 2020

    Science On Top
    enAugust 05, 2020

    SoT 357: You Get An Ocean!

    SoT 357: You Get An Ocean!

    Hosts: Ed Brown, Penny Dumsday, Lucas Randall

    00:00:28 Good news in quarantine, two pandas in Hong Kong have finally mated! It only took them ten years!
    00:04:29 Lots of moons in our solar system seem to have subsurface oceans, and now it looks like Pluto does too!
    00:13:59 Soy is everywhere these days, but there are environmental concerns with it. Now a new study suggests fava beans could be a more environmentally friendly source of plant protein.


    This episode contains traces of Trevor Noah discussing pandas mating in Hong Kong.

    SoT 356: The Same... But Opposite

    SoT 356: The Same... But Opposite

    Hosts: Ed Brown, Penny Dumsday, Lucas Randall

    00:00:39 When it comes to giving birth in the animal world, there's mostly only two options: live babies, or eggs. But very rarely, it can be both! Such is the case with the yellow-bellied three-toed skink.
    00:06:37 Imagine solar power that worked at night! That's (kind of) the promise of a new type of solar cell being developed by two American researchers.
    00:19:50 If you want to train a robot dog, there's the hard way and there's the easy way. The hard way is manually coding everything you want the dog to do. The easy way is to develop machine learning software that learns from watching other dogs!

    This episode contains traces of Michael Rowland and Lisa Miller discussing Singapore's robot dog technique of enforcing physical distancing, on ABC News Breakfast.

    SoT 355: E-mouse-icons!

    SoT 355: E-mouse-icons!

    Hosts: Ed Brown, Penny Dumsday, Lucas Randall

    00:00:40 Researchers at the Max Planck Institute in Germany have used a machine-learning algorithm to finally answer one of science's most confounding puzzles: Is that mouse over there happy? Or afraid? Or disgusted?
    00:07:54 Astrophysicists from the University of Florida and Columbia University have figured out that a violent collision of two neutron stars released many of the heavier atoms that went on to form our solar system.


    This episode contains traces of Greg Milam, US correspondent for Sky News, on the Pentagon's release of videos showing unidentified flying objects.

    SoT 354: They Smacked It With A Shovel

    SoT 354: They Smacked It With A Shovel

    Hosts: Ed Brown, Penny Dumsday, Lucas Randall, Dr. Helen Maynard-Casely

    00:03:36 NASA's Mars InSight probe has finally managed to drill into the Martian rock and soil - thanks to a traditional repair technique!
    00:13:04 The idea that glass is a liquid that flows is largely a myth.... sort of. It's an amorphous solid, so it does flow but very very slowly. Now an analysis of amber has shed some light on the disordered molecules that make glass a "liquid in suspended animation".
    00:26:36 When our fishy ancestors slithered onto land nearly 400 million years ago, they had hands and feet. But fingers and toes took a little longer to develop. The discovery of a complete skeleton of a fish from around that time gives some clues about the evolution of fingers.


    Dr. Helen Maynard-Casely is a planetary scientist working at ANSTO, Australia’s Nuclear Science and Technology Organisation. She is the co-author of the children's book I Love Pluto.


    This episode contains traces of the panel on Have I Got News For You discussing an astrophysicists attempts to make a device to stop you touching your face.

    SoT 353: Crazy Finds A Way

    SoT 353: Crazy Finds A Way

    Hosts: Ed Brown, Penny Dumsday, Lucas Randall

    00:00:35 Professor Maria Croyle from the University of Texas in Austin has been working on alternative delivery mechanisms for vaccines without giant needles. And one promising method she's developed is a lot more palatable!
    00:08:15 The formation of our moon is something of a mystery to astronomers. But now new research into the moon's composition further strengthens the most widely accepted theory.
    This episode contains traces of the SARS-COV-2 virus translated into "surprisingly beautiful" music.

    SoT 352: Noodle-Fingered Hugs

    SoT 352: Noodle-Fingered Hugs

    Hosts: Ed Brown, Penny Dumsday, Lucas Randall

    00:00:27 How do you study wibbly wobbly jellyfish, without damaging them or stressing them out? You give them a noodly hug, of course!
    00:08:27 When a satellite runs out of fuel, it's sent up into a graveyard orbit where it can pose a threat to any spacecraft leaving Earth. But a recent test of the Mission Extension Vehicle could mean satellites can be refuelled, extending their lifespan significantly.
    00:21:25 People are attaching sensors to plants, and translating the electrical conductivity of the plants into "music". It's not very good music, but the idea is to change how people think about plants as living organisms.
    00:29:45 Astronomers have found a new planet outside our solar system, with a new technique. They looked for the radio signals from aurorae on the exoplanet!


    This episode contains traces of ABC science journalist Tegan Taylor and physician Dr. Norman Swan answering children's coronavirus questions on Coronacast.

    SoT 351: Air Sea'n'Sea

    SoT 351: Air Sea'n'Sea

    Hosts: Ed Brown, Penny Dumsday, Lucas Randall

    00:00:28 An Australian research team has come up with a luxurious plan to save endangered seahorses.
    00:04:54 A more precise method of determining the methane produced by human activities draws a timeline of industrialisation.
    00:15:07 Remains dating back 65,000 years ago demonstrate that the earliest Australians enjoyed slow-cooking.
    00:20:28 Have you thought about the environmental impact your death and burial or cremation will have? There could be more planet-friendly options when it comes to 'deathcare'.


    This episode contains traces of Bill Gates, speaking to Vox four years ago, about his greatest fear.