Kurzgesagt – In a Nutshell

You Are an Impossible Machine 📜Transcript

You Are an Impossible Machine You are cells. Your muscles, organs, skin and hair. They are in your blood and in your bones. Cells are biological robots. They don’t want anything, they don’t feel anything. They are never sad or happy. They just are, right here, right now. They are as conscious as a stone or a chair or a neutron star. Cells just follow their programming that has been evolving and changing for billions of years, molded by natural selection. They are impossible machines and yet, here they are, driven entirely by the fundamental forces of the universe. The smallest unit of life, right at the border where physics becomes biology. Sometimes, to get a truer understanding of how amazing something is, you need to hold your breath and dive in really deep. So, what are cells and how do they work? @Kurzgesagt_InaNutshell

Black Hole Star – The Star That Shouldn't Exist 📜Transcript

Black Hole Star – The Star That Shouldn't Exist Black hole stars may have been the largest stars to ever exist. They burned brighter than galaxies and were Larger than any star today or that could ever exist in the future. But besides their scale, what makes them special and weird is that deep inside, they were occupied by a cosmic parasite, an endlessly hungry black hole. How is that even possible? @Kurzgesagt_InaNutshell

How To Terraform Mars - WITH LASERS 📜Transcript

How To Terraform Mars - WITH LASERS Mars is a disappointing hellhole lacking practically everything we need to stay alive. It looks like we’ll only ever have small crews spend a miserable time hidden underground. Except, we could terraform it into a green new world. But to solve the planet’s problems, we first need to make it worse and turn it into oceans of lava with gigantic lasers. @Kurzgesagt_InaNutshell

The Horror of the Slaver Ant 📜Transcript

The Horror of the Slaver Ant Everything changed when the slaver nation attacked. What used to be a thriving colony is now a captured country. Slaves do the work, serving their new masters until they die, only to be replaced by new victims harvested in brutal raids. @Kurzgesagt_InaNutshell

What Happens if a Supervolcano Blows Up? 📜Transcript

Why Don't We Shoot Nuclear Waste Into Space? Here in the Kurzgesagt labs we test very important ideas to see what happens when you blow things up or play with black holes. Many of you suggested that we look into an idea that sounds reasonable: Shooting nuclear waste into space. It is one of those concepts that seems like an easy fix for one of the main problems with nuclear energy. But it turns out this idea is not just bad but horribly bad and it gets worse the longer you think about it. @Kurzgesagt_InaNutshell

What Happens if a Supervolcano Blows Up? 📜Transcript

What Happens if a Supervolcano Blows Up? The Earth is a gigantic ball of semi-molten rock, with a heart of iron as hot as the surface of the Sun. Titanic amounts of heat left over from its birth and the radioactive decay of trillions of tons of radioactive elements find no escape but up. Currents of rock spanning thousands of kilometers carry this energy to the surface. Earth’s crust is the only thing in their way. It feels solid to us, but it is only a fragile barrier, an apple skin around a flaming behemoth. True apocalypses can break through and unleash eruptions tens of times more powerful than all of our nuclear weapons combined, subjecting the climate to centuries worth of change in a single year, while drowning continents in toxic ash and gases: supervolcanoes. How big can they get? And will they put an end to humanity? @Kurzgesagt_InaNutshell