Kurzgesagt Podcast: Science Revealed

How can a network of satellites thousands of kilometers above Earth deliver high-speed internet to people on the ground?In this episode, we explore how Starlink works—from the constellation of satellites orbiting Earth to the small user terminals that connect homes, businesses, and remote communities to the internet.Discover how low Earth orbit satellites communicate with each other and ground stations, why Starlink can offer lower latency than traditional satellite internet, and the engineering challenges involved in operating such a massive space-based network.A fascinating look at the technology transforming how we connect to the internet from almost anywhere on Earth.

Ever wondered how a vending machine knows whether a coin is real or counterfeit?In this episode, we take a fascinating look inside the technology behind coin validation. Discover how vending machines analyze coins using factors such as size, weight, material, magnetic properties, and other physical characteristics to determine whether a coin is genuine.From the moment a coin enters the machine to the instant it is accepted or rejected, we explore the clever engineering that makes this everyday technology work.A simple question with a surprisingly sophisticated answer.

The universe is filled with mysteries that challenge everything we think we know about reality. But could there be something so unlikely, so extraordinary, that it seems almost impossible?In this episode, we explore one of the most fascinating questions in science and cosmology, examining the evidence, theories, and discoveries that push the boundaries of what we believe is possible.From the origins of the universe to the strange laws governing space, time, and existence, join us on a journey into one of the greatest mysteries humanity has ever attempted to understand.

High blood pressure is a common health condition that can affect people without obvious warning signs. In this episode, we explore what high blood pressure is, why it matters, the factors that can increase the risk, and how it can affect the body over time.We’ll also look at the importance of regular blood pressure checks, healthy lifestyle choices, treatment, and knowing when to seek professional medical advice.A simple, informative conversation designed to help listeners better understand high blood pressure and the importance of taking heart health seriously.

Autism is a different way of experiencing and understanding the world. In this episode, we explore what autism is, how it can affect communication, learning, sensory experiences, and everyday life, and why every autistic person can have their own unique strengths, needs, and experiences.We’ll separate facts from common misconceptions and look at how greater understanding, acceptance, and support can help create a more inclusive world.A clear, respectful, and informative introduction to autism for anyone who wants to learn more.

Salt is an essential part of our diet, but too much of it can quietly put stress on the body. From everyday meals to processed and packaged foods, many people consume more sodium than they realize.In this episode, we explore what happens inside your body when you consume too much salt, how sodium affects blood pressure and fluid balance, and why consistently high intake can increase the risk of serious health problems.We also look at how much salt we actually need, which foods contain surprisingly high amounts, and simple ways to reduce excess sodium without making your meals bland.So, is salt really the enemy—or is it simply a case of having too much of a good thing? Let’s find out.

Menstruation is a natural part of the human reproductive system, yet it remains surrounded by myths, embarrassment, and misinformation.In this episode, we break down what actually happens during the menstrual cycle, from the hormonal changes that prepare the body for a possible pregnancy to what happens when pregnancy doesn’t occur.Why does menstruation happen? What causes cramps, mood changes, and other common symptoms? How long does a typical cycle last? And why can periods look and feel different from person to person?We explore the science of the menstrual cycle in a simple, informative way while separating common myths from what we know about reproductive health.Because understanding menstruation isn’t just about biology—it’s about understanding one of the most normal processes of the human body.

From the original Macintosh to the iPhone, Apple has repeatedly changed how people interact with technology.In this episode, we explore the technology behind Apple’s most influential products and the philosophy that has shaped its approach to hardware, software, design, and user experience. We look at the innovations that helped Apple stand out, from custom chips and operating systems to touchscreens, biometric security, and tightly integrated devices.How does Apple make its hardware and software work so seamlessly together? Why has its approach to product design been so influential? And what technologies could define Apple’s next chapter?We take a closer look at the engineering, innovation, and strategy behind one of the world’s most influential technology companies—and how Apple’s technology has helped shape the modern digital world.