Lagrange Point

Lagrange Point

A fun take on the latest science news with enough data to sink your teeth into. Lagrange Point goes beyond the glossy summary and gets in depth with the research from across the world. Brought to you in partnership with the Young Scientists of Australia. Each week for over five years, from community radio on SYN 90,7 to online podcasts, the Lagrange Point team have delivered a funny but interesting take on science from a young person's perspective.

Auteur

Lagrange Point

Catégorie

Science

Dernier épisode

28 oct. 2023

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Épisodes

Episode 555 - Breaking down toxic fungus and learning to live alongside them 28.10.2023

Fungal invasions taking over living hosts is the thing of science fiction, but the humble button mushroom is taken steps to start. Often a fungi will specialize in symbiosis, invading or decomposing. But Mycena are starting to adapt to do all three. Humans, plants and fungi are in a complicated relationship where we influence the development of each other. The complex fungal toxin patulin is dange...

Episode 554 - Collaborating to solve Martian Mysteries 21.10.2023

What caused those large quakes on Mars? How can Mars have big Mars-quakes without plate tectonics? If an impact crater isn't too blame for the Mars quakes what may be the cause. An international collaboration pooled the instruments of many countries Mars Missions to solve a mystery. Even using many different countries space ships, no 'smoking crater' was found that caused a mysterious martian quak...

Episode 553 - E.coli to the rescue and boosting geothermal power 09.10.2023

E.coli is one of the most studied and versatile bacteria, so how can we make it work for us? Bacteria's ability to generate electricity is well known, but often requires complex conditions. How can we use E.Coli to generate electricity without a complicated setup? Geothermal systems seem to promise unlimited power but sometimes a cold water 'short circuit' ruins the plan. How do you carefully cont...

Episode 552 - Talking to plants and how a jellyfish learns 04.10.2023

How does a jellyfish manage to see and learn without a large central brain? Like the Scarecrow of Oz, jellyfish are a without a brain but are still able to learn and do great feats. How does the nervous system of a jellyfish learn to dodge and avoid obstacles without a big brain? Plants respond to light, but is it possible to communicate with them about upcoming dangers? Jan Bielecki, Sofie Katrin...

Episode 551 - Boosting your immune system to fight back cancer 25.09.2023

There are many different types of treatments for cancer, all of them with pros and cons. Enhancing our anti cancer toolbox requires careful testing to help reduce side effects. CAR-T takes your immune cells and boosts them to help fight cancer, but can have some pretty nasty side effects. By carefully coating CAR-T cells you can fight back against cancer and limit the chance of a cytokine storm or...

Episode 550 - Cosmic Collisions and galactic devouring 10.09.2023

What happens when two massive planets collide? How can you end up with a gas giant that's super dense and heavy? how can a planet the size of Neptune be as dense as steel? What happens when two giant planets collide at high speed? Watching a black hole devour a star, one bite at a time.  Luca Naponiello, Luigi Mancini, Alessandro Sozzetti, Aldo S. Bonomo, Alessandro Morbidelli, Jingyao Dou, Li Zen...

Episode 549 - Water infrastructure and Archaeology 01.09.2023

Infrastructure projects and large engineering projects can lead to archaeological discoveries. When you start digging a large sewer network, the last thing you suspect to find is 1,000s of fossils. Large water projects in Auckland managed to discover new species and shed light on New Zealand 3 million years ago. We often think of modern plumbing as being a sign of the modern era, but in ancient Ch...

Episode 548 - A paradise for Octopi at the base of a volcano 27.08.2023

At the depths of the ocean, in freezing waters there is somehow a paradise for Octopi. Off the coast of Monterey, an extinct underwater volcano creates just the right conditions for an absurd number of octopi to breed, nest and survive despite the freezing temperatures. With water near freezing, an octopi egg would normally take 8 years to hatch, but how are they managing to survive in huge number...

Episode 547 - Concussions - How long do you really have to wait? 17.08.2023

How long do you really have to wait after a concussion? Athletes are always keen to get back in the game after a head knock, but how long do they really need to wait? When trying to assess and track a concussion getting hard data is difficult. Using special headbands and measuring the pulse of the brain you can get an insight into concussion recovery. Concussion symptoms can disappear long before...

Episode 546 - What’s going on with whale’s behaviour 11.08.2023

When whales and humans interact the results can be confusing and messy for both sides. Whether it be noisy boat propellers, or orcas on a collision course, humans and whales don't always get on. How can we monitor and track how whales respond to humans. The best ways of monitoring animals is often with tags, but the very act of tagging can ruin what you're trying to study.  Lars Reiter Nielsen, Ou...

Episode 545 - Phages taking the fight to bacteria 31.07.2023

Antibiotic resistance is a global challenge, but the solution may come from the natural predator of bacteria. Bacterial infections can be nasty, but you can engineer a phage to help better identify and treat them. Knowing exactly which bacteria is causing problems can help doctors target treatment more precisely and tailor antibiotic courses. Using bacteriophages  you can quickly identify and then...

Episode 544 - Metals recovering from fatigue 24.07.2023

Cracks in metal can ultimately lead to fatigue failure, but is there a way to unwind the damage? Fatigue failure is a serious problem for everything from bridges to phones so finding a way to tackle it is important. One microcrack can turn into another as a metal fatigues, but what if the cracks could close themselves up again? Can a metal piece itself back together again? Maybe if its in a vacuum...

Episode 543 - Monitoring vital signs without getting in the way 20.07.2023

Getting an accurate picture of someone's health or vital signs is essential in medicine, but hard to physically do without wires. Invasive health monitoring systems can't provide insights into 'everyday' scenarios. Trying to assess someone's posture, gait and rehabilitation is hard if they're wired into a harness. Smart Pants using fibre optics can help rehabilitation by fully understanding the pr...

Episode 542 - Evolving multicellular life in the lab 10.07.2023

Its a huge leap from a single celled organism to a complex multicellular beast. So how does evolution manage it? You can evolve humble yeast from a single celled organism into a complex interwoven multicellular one. Over 3,000 generations in the lab, the humble yeast was evolved from microscopic to macroscopic with super strength. Grouping together or splitting apart can offer benefits for organis...

Episode 541 - The building blocks chemistry 03.07.2023

Chemistry is complicated but it had to start somewhere. The origins of complex chemistry had to be built up from scratch. How did complex compounds form on early earth. How can we replicate the conditions of early earth and watch complex chemistry develop? Peering into chemical reactions is tricky because they can happen so fast.  Zhong Yin, Yi-Ping Chang, Tadas Balčiūnas, Yashoj Shakya, Aleksa Dj...

Episode 540 - On the shoulders of giants 30.06.2023

The universe scaling work of the NANOGrav team stands on the shoulders of giants to understand giants lurking in our universe. Huge decade spanning scientific projects like NANOGrav are built of ideas and concepts which we can trace back to earlier pioneers. NANOGrav relies on Pulsars to map the universe but the discovery of them can be traced back to one key woman, Jocelyn Bell Burnell. This week...

Episode 539 - Dangerous but beautiful space weather 20.06.2023

Weather in space, can seem far away but it's dazzling effects come with some danger. Aurora localised entirely around a satellite can cause a steamy situation for communications. Analysing space weather can lead to better designed satellites capable of withstanding 1-100 year solar storms. It's a balancing act when protecting satellites from solar weather, too much and too little protection can le...

Episode 538 - Colossal volcanic eruptions taking out satellites 12.06.2023

When a volcano erupts we're used to imagining damage from lava, ash and even tsunamis. So why were satellites taken out? The colossal eruptions at Hunga-Tonga in 2022 caused pressure waves that caused damage 1000s of km away and even to satellites. Satellites, long distance radio and GPS all rely on the ionosphere, but large eruptions can wreck havoc and cause disruptions. When a pressure wave spr...

Episode 537 - Better batteries that last even in subzero temperatures 06.06.2023

Batteries power the modern world, but how can we make them more sustainably and last longer. Lithium powers most of our modern batteries but it doesn't cope with the cold. The electrolytes inside lithium ion batteries are powerful but weak when its cold, so what can we use instead? Extracting lithium is carbon intensive and difficult, are there more abundant materials we can use? Calcium based bat...

Episode536 - Taking pollution out of the atmosphere 29.05.2023

Humans are filling the atmosphere with more and more pollution. How does it get out of the air and where does it go? For complex pollutants in the atmosphere, having a bit of hydroxide around helps break it down but where does it come from? Hydroxide can spontaneously generate in droplets but it doesn't seem to need sunlight's or photo-chemistry. Spontaneous generation of hydroxide in water drople...

Lagrange Point Episode 535 - Trees growing faster during droughts 24.05.2023

As our climate changes extreme weather events become more common, but what does this mean for ecosystems? Ecosystems and plants that have adapted to on extreme climate, can thrive in another. An adaption that helps you survive in extreme cold can be very helpful when there is a drought. There is a balancing act between choosing when to grow and when to conserve energy. Plants carefully manage thei...

Episode 534 - Finding a rocky asteroid belt around another star 15.05.2023

Asteroid belts are harder to find than Sci-fi would have you believe. Spotting an asteroid belt is easier in the outer solar system, but closer in it gets a bit more blurry. Using the JWT we can use more than just visible light to find tricky interstellar objects. Asteroid belts are messy but they can tell us a lot about a solar system by what they leave in their wake.  Reference: András Gáspár, S...

Episode 533 - Bacteria melting ice and changing the planet 11.05.2023

How can tiny bacteria change the entire planet? Greenland is beautiful and covered in glaciers, but they are turning more and more dark and black. Black algae is tinting glaciers in Greenland darker, and causing changes in our climate. The more our climate changes, the easier it is for algae to thrive in glacier runoff and change the colours of the glaciers. Algae can survive in strange locations...

Episode 532 - Bacteria reviving themselves when the time is right 04.05.2023

Bacteria are masters of survival, pausing and shielding themselves when times get tough. So how do they know when to wake up? The mechanisms bacteria use to survive harsh conditions are one of the reasons they're able to survive so well. The protective layers and pausing all activity inside the cell enable the bacteria, as a spore, to survive very long periods of time. After suspending themselves...

Lagrange Point Episode 531 - Measuring the expansion of the universe 24.04.2023

Understanding the future of the universe requires peering into the past. How quickly the universe is expanding has been an active area of science since the 1920s, with several prizes and breakthroughs. Each time we get new or more accurate measurements it forces scientists to re-evaluate the assumptions and formulas. These breakthroughs then need to be confirmed with follow up studies. The measure...

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