Technically Speaking | a science and engineering discussion

You often hear that natural is better but is this really true? Jasmin and Antonia discuss how some perfumes are made by considering the chemical processes used to extracted from flowers, and how it can be synthesised. They also consider the ethics behind collecting flowers such as jasmine. Fact check: News report into using illegal child labour on some farms The video that Antonia mentions about h...

Known as GLP-1, they've been all over our news feed! Ellie, Jasmin and Laura look at how these drugs work, how effective they are, whether they could live with the side-effects, and consider whether they should be advertised. Fact check: How they work in the body Some history , including when they were first used for type 2 diabetes Evidence that most people regain a lot of weight when they stop u...

Also known as orcas, these large mammals have been observed doing some really weird stuff. Laura, Ellie and Jasmin talk about orca massages, wearing salmon as hats, hunting and more. They discuss how these behaviours might have started and consider what other weird behaviour we might not have seen yet. Fact check: Newly observed behaviour of making a dead fish explode Using seaweed for massaging a...

Trails of condensation in the wake of an air plane might look pretty, but some of them contribute significantly to the climate emergency. Laura speaks to Jasmin about her research group's latest project to predict how they form, how to avoid them, and what else the aviation sector needs to consider to make air travel more sustainable.

Antonia, Ellie and Emma explore the nature of altruism from examples with mammals and insects, to human studies and the pop culture take on the term. Could donating a kidney be seen as an altruistic act or is there always some hidden benefit that makes even the most generous of gifts a tiny bit selfish? Fact check: Ants signal sickness to save others Dolphins help lost whale Chimpanzees help each...

New research has found an unusual link between immune cells in the liver and the ability of homing pigeons to navigate using the earth's magnetic field. Laura, Antonia and Ellie dive into the research and put themselves in the shoes of the scientist making this surprising discovery. They also ask how we can make use of this research and consider what might be discovered next. Read the original res...

Antonia and Ellie discuss the first ever Intergovernmental Panel on Climate Change (IPCC) report. We explore what lead to the report being created, what the predictions for climate change looked like in the 90s and whether the world has taken any steps to mitigate the effects suggested by the report. Fact check: First IPCC report 1990/1992 IPCC Reports over the years Laws after the Paris agreement...

 They're fast and floaty, but sadly we don't have them in the UK. Laura, Emma and Antonia look at the cool use of physics that makes them levitate and compare energy use and infrastructure requirements to other forms of transport. Fact check: Usual train speeds, and the record speed How maglevs work Energy use compared to traditional trains

Antonia, Ellie and Tom discuss the history of the Moon missions, including the Apollo programme that started it all and the past and future of the ISS. The team explores the media hype and the differences surrounding the Artemis missions in comparison to those first voyages to space over 50 years ago.  Fact check: • The best photographs • Records broken • The capsule returns • Meet the crew • Thin...

And how did they learn to do it? Ellie and Emma discuss what tool use actually is and the species that have adapted specific instruments to achieve a desired goal. From Veronika the cow to Jane Goodall we explore how far tool use has come and what the possibilities are for species and tools of the future. Fact check: Research about ravens Evidence that humans are better than chimps at solving puzz...

The battery in electric vehicles makes them much heavier than traditional vehicles. Laura and Jasmin discuss how steel car components can be made lighter to offset this increased weight, what implications that has for other industries, and whether this would make the steel industry more sustainable.  Fact check: Some ways that steel car components are made lighter Stats about the Nissan Leaf and h...

Ellie, Antonia and Emma discuss their personal experiences with cold water and the science behind whether there is any benefit in dunking yourself in a chilly loch. They also discuss studies related to sauna usage, if cold showers make any difference, and if the Nordic countries have got the right idea 💡 Fact check: Research shows that cold plunges can lead to heart attacks A scientific review of...

Some gemstones are desired for their sparkle and rarity while others have practical applications in engineering and electronic components. Laura and Antonia look at different ways gems can be made in the lab, how valuable they are and consider how you could potentially make a lot of money from them. Fact check: The composition of sapphire and ruby A list of valuable diamonds The most expensive lab...

Researchers were surprised to find that moss spores germinated after nine months hanging out on the outside of the International Space Station. Ellie and Laura dive into their research and go beyond it to look at why some things survive in space, the benefits of doing this sort of research and what it might mean for a more resilient ecosystem here on Earth. Fact check: News about the space moss Mo...

Different nations have different approaches to testing and using chemicals to see how they can cause diseases. Antonia, Laura and Jasmin look at how chemicals are tested for toxicity, how harmful substances are controlled, and whether dose limits are important. They look at asbestos, radioactive substances, and more. Fact check: Manufactured chemicals have led to an increase in childhood disease a...

And is it a good idea? Laura, Jasmin and Antonia look at various scientific studies on growing crops and raising livestock in fields of solar panels to see what the effects are. They also look at some solar farms that are used in arid regions and the benefits they can have for crops and the environment. Fact check: The random broccoli study A study of crop growing in arid regions One of the review...

And can we learn to live longer? Ellie, Jasmin and Emma discuss telomeres that form the ends of DNA strands, the long-lived members of the animal world, supplements and products to fight the signs of aging, and even the idea of living forever.

It takes a long time for medicines to be developed. Looking at drugs used in women's health and more, Laura and Ellie look at what goes into their development, how the risks are weighed against the benefits, and how the known benefits of a drug can change as we learn more about them. Fact check: A review of paracetamol/Tylenol development Statistics on drug development How much paracetamol is cons...

Saving endangered species is vital for a healthy planet and cloning individual animals can help. Ellie and Laura look at the black-footed ferret, discuss some other endangered species that cloning is helping to save, and look at the history and challenges of cloning. Fact check: Cloning the black-footed ferret Prairie dogs A history of cloning Controversy around claims of human cloning Dolly the s...

When you care about sustainability, you can bet that becomes your focus. Laura and Antonia look at how to solve climate change through social engineering and behavioural science that involves brain chemistry as well as solving the problem of having finite resources that create inequality. Fact check: MRI scans can lead to better understanding of the brain One gene variation can affect serotonin si...

We’re using more energy and in the UK a lot of this goes into heating or cooling our homes but can we use natural processes to make this happen? Laura, Rwayda and Antonia discuss how using traditional clay in the Caribbean keeps houses cool while a smart architect in India has used fundamental physics to achieve the same feat. In the UK, passive houses with thick insulation are a thing but could w...

In the UK it feels like winters are getting warmer but the entire year is usually rainy. We remember things being a bit different when we were younger. Laura, Antonia and Ellie discuss evidence for changing of the seasons and look at the effect this has globally on extreme events such as wildfires, animal migration and plant growth. They also look at some research that identified new seasons and s...

A special type of in-vitro fertilisation, that uses material from three people, has made some interesting headlines recently. Laura and Ellie discuss the technique and consider some of the major advancements that went into in-vitro fertilisation, also known as creating test-tube babies, and uncover some surprising facts. Did you know that research began in the 19th century?  Fact check: Recent new...

From unintentional acidification to fishing and conservation, there’s a lot going on. Antonia, Laura and Ellie talk about the link between greenhouse gas emissions and changing ocean chemistry which is affecting the delicate balance of marine life, speculate about what a rather nifty deep-sea research station could uncover as well as how biochemistry discovered in the deep sea has already proven u...

It’s due to be retired on 2030 when it will crash back to Earth so was it worth it? Ellie, Antonia and Laura look at just some of the scientific discoveries it’s helped with, including the many processes involved in ageing, getting a clearer understanding of how plaques form in the brain, the fundamental physics of water boiling and some nifty science of scent molecules. Fact check: Cost of keepin...