S1 E1 • Intro to History of Science

We've been asking big questions for a really long time and we've all wanted to explore how we've sought to answer those questions through the centuries. Questions like, "What is stuff?" and "Where are we?" have inspired people all over the world to investigate. So lets dive in and see how we, as a people, have tried to figure this stuff out in this first episode of Crash Course History of Science!

Première diffusion : 26 mars 2018

S1 E2 • The Presocratics

Long ago, some philosophers worked very hard to separate myths from what they actually knew about nature. Thales theorized that everything in the world is made of water. Pythagoras was a mathematical-mystical vegetarian. And Democritus, we all know and love as the Atom Guy… Meet the Presocratics!

Première diffusion : 9 avril 2018

S1 E3 • Plato and Aristotle

Last week, we met the Presocratics: despite having by any reasonable standard invented science in Europe, these thinkers are lumped together today as simply “not Socrates.” So who was this smarty pants? In this episode Hank talks to us about Socrates and his two important students, Plato and Aristotle.

Première diffusion : 16 avril 2018

S1 E4 • India

You might have recognized the names of some of the Greek natural philosophers. They were individuals with quirky theories, and we have records about them. But they weren’t the only people making knowledge back in the day. Today, Hank takes us to India to talk Vedas, Maurya Empires, and some really good doctoring.

Première diffusion : 24 avril 2018

S1 E5 • The Americas and Time Keeping

In this episode of Crash Course History of Science, we travel to the Americas to ask the question, "When are we?" and get some answers. We'll look at the Maya, Inca, and Olmec civilizations and how they recorded their science.

Première diffusion : 30 avril 2018

S1 E6 • Roman Engineering

The Romans developed a lot of infrastructure like roads and aqueducts to both help their cities flourish and to... you know... be better at war. But the interesting thing about Roman Engineering is how it was almost all focused on Techne and not Episteme. In this episode of Crash Course History of Science, Hank takes us down the road of road building, domes, and some really cool cement.

Première diffusion : 7 mai 2018

S1 E7 • The Medieval Islamicate World

The religion of Islam significantly influenced knowledge-making in the greater Mediterranean and western Asian world. Islamicate scholars—meaning people influenced by Islamic civilization, regardless of their religious views—gave us terms such as “algebra,” “azimuth,” “algorithm,” “alcohol,” “alkali,” and “alembic.” We’ll dive into Islamic medicine and philosophers such as the great Persian polymath Ibn Sina in future episodes. For now, let’s explore the beginnings of Islamicate natural philosophy.

Première diffusion : 14 mai 2018

S1 E8 • Medieval China

Like Egypt, Sumer, and Mesoamerica, ancient China represents a hydraulic civilization—one that maintained its population by diverting rivers to aid in irrigation—and one that developed writing thousands of years ago. Today, we’re going to focus on the time of the Northern and Southern Song Dynasties, a time of great technical innovation. But, before we get to the Song, let’s take a tour through the ages and explore key elements of Chinese scientific culture.

Première diffusion : 21 mai 2018

S1 E9 • Ancient & Medieval Medicine

The history of medicine is about two of our big questions: one, what is life? What makes it so special, so fragile, so… goopy!? Two, how do we know what we know? Why should I take my doctor’s advice? Why are deep-fried Oreos bad for me? It may be tempting to look at medicine as a science that has simply progressed over time—that medicine used to be bad, and its history is a story of how it got better.

Première diffusion : 4 juin 2018

S1 E10 • Alchemy

n fantasy stories, charlatans in fancy robes promise to turn lead into gold. But real alchemists weren’t just mystical misers. They were skilled experimentalists, backed by theories of matter. And they played a huge role in the development of knowledge about one of our fundamental questions: “what is stuff?”

Première diffusion : 11 juin 2018

S1 E11 • Cathedrals and Universities

Until roughly 1100, there were relatively few places of knowledge-making. Monasteries and abbeys had special rooms called scriptoria where monks copied manuscripts by hand. But the biggest places where knowledge was made were the Gothic cathedrals. Then Universities came along, too. This is the story of those two institutions!

Première diffusion : 25 juin 2018

S1 E12 • The Scientific Revolution

So, what exactly is a scientific revolution? And are they more than just moments in time Historians use to mark the beginning and ending of things through time? In this episode we'll look into some ideas and people named Nick and how they fit into science and the search to understand ourselves and our place in the universe.

Première diffusion : 2 juillet 2018

S1 E13 • The New Astronomy

This week on Crash Course: History of the Scientific Revolution—astronomical anomalies accrued. Meanwhile, in Denmark—an eccentric rich dude constructed not one but two science castles! And his humble German assistant synthesized a lot of new, old, and bold astronomical ideas into a single sun-centered, eccentricity-positive system…

Première diffusion : 9 juillet 2018

S1 E14 • The Scientific Methods

Historically speaking, there is no one scientific method. There’s more than one way to make knowledge. In this episode we're going to look at a few of those ways and how they became more of the "norm."

Première diffusion : 16 juillet 2018

S1 E15 • The New Anatomy

There’s a question to consider that’s pretty daunting: what is life? And to try to answer that question, three tools stand out as being especially useful: A book, some experiments, and the microscope! In this episode, Hank talks to us about all kinds of gross things! It's fun!

Première diffusion : 23 juillet 2018

S1 E16 • The Columbian Exchange

Over the last four episodes, we’ve examined some of the stories that make up the idea of a “revolution” in knowledge-making in Europe. But we can’t understand this idea fully, without unpacking another one—the so called Age of Exploration. This encompasses a lot of events that happened from 1400 through the 1600s and were driven in part by new ideas about knowledge-making.

Première diffusion : 6 août 2018

S1 E17 • Newton and Leibniz

The standard story of the Scientific Revolution culminates with the long life of one man: Sir Isaac Newton—a humble servant of the Royal Mint, two-time parliamentarian, and a scientific titan whose name, along with Einstein’s, is synonymous with physics today.

Première diffusion : 14 août 2018

S1 E18 • The New Chemistry

One of the problems with the whole idea of a single Scientific Revolution is that some disciplines decided not to join any revolution. And others just took a long time to get there.

Première diffusion : 20 août 2018

S1 E19 • Biology Before Darwin

You’ve probably heard of Charles Darwin, but before we get to him, you really need to understand how different people, throughout the seventeenth and eighteenth centuries, tried to answer the same question: “what is life?”

Première diffusion : 27 août 2018

S1 E20 • Earth Science

It's Earth Science time!!!! In this field, natural philosophers were asking questions like, what’s up with fossils? Are they the remains of extinct organisms? Or are they so-called “sports of nature”—rocks that just happen to look like living things but don’t /mean/ anything? And most importantly, how old is… everything?

Première diffusion : 10 septembre 2018

S1 E21 • The Industrial Revolution

You probably know some of the signs of industrialization in the nineteenth century: Trains connected cities, symbolizing progress. But they also brought about the destruction of rural lands, divisions between social classes, and rapid urbanization. But there's a whole lot more to talk about in this episode of History of Science!

Première diffusion : 25 septembre 2018

S1 E22 • Darwin and Natural Selection

"Survival of the Fittest" sounds like a great WWE show but today we're talking about that phrase as it relates to Charles Darwin and Alfred Wallace. Darwin and Wallace are at the heart of understanding evolution and natural selection. Today, Hank talks about their wonderful (if not seasick inducing) trips around the world.

Première diffusion : 1 octobre 2018

S1 E23 • Eugenics and Fracis Galton

After Darwin blew the doors off the scientific community, a lot of people did some weird and unscientific stuff with his ideas. Francis Galton and a few others decided natural selection could be used to make the human race "better" and came up with Eugenics.

Première diffusion : 8 octobre 2018

S1 E24 • Micro-Biology

It's all about the SUPER TINY in this episode of Crash Course: History of Science. In it, Hank Green talks about germ theory, John Snow (the other one), pasteurization, and why following our senses isn't always the worst idea.

Première diffusion : 15 octobre 2018

S1 E25 • Genetics - Lost and Found

Sometimes trail blazers of science aren't famous like Darwin or Pasteur. Sometimes they're humble Abbots, just growing peas in the back of their Abbey. This is the story of Gregor Mendel and how his work was done, lost, then found again.

Première diffusion : 22 octobre 2018

S1 E26 • Thermodynamics

It's time to heat things up! LITERALLY! It's time for Hank to talk about the history of Thermodynamics!!! It's messy and there are a lot of people who came up with some ideas that worked and other that didn't and then some ideas that should have come first actually were figured out second.

Première diffusion : 29 octobre 2018

S1 E27 • Electricity

The study of electricity goes all the way back to antiquity. But, by the time electricity started to become more well known, a few familiar names started to appear. Edison, Galvani, and a few others really changed the way the world worked.

Première diffusion : 5 novembre 2018

S1 E28 • Ford, Cars, and a New Revolution

Historians love to debate each other. So some of them pointed out that the first half of this revolution looks a lot different from the second. Let's chat about industry, cars, and Henry Ford.

Première diffusion : 12 novembre 2018

S1 E29 • Cinema, Radio, and Television

Radio, Cinema, and Television have been staples in news coverage, entertainment, and education for almost 100 years. But... where did they all come from? Who started what and when and why? In this episode, Hank Green talks to us about their birth and a dead elephant.

Première diffusion : 26 novembre 2018

S1 E30 • The Mind/Brain

Scientists in the nineteenth century discovered a lot about life and matter. But exactly what kind of stuff is the human brain? That one was—and is—tricky. The brain sciences—with experiments and therapies tied to biological theories of the body—emerged in the nineteenth century and came into their own in the early twentieth.

Première diffusion : 3 décembre 2018

S1 E31 • Marie Curie and Spooky Rays

It's time to talk about one of the most awesome scientists that has ever been awesome: Marie Curie. She figured out ways to get an amazing education despite the limitations of her homeland, discovered some really important answers to the question "what is stuff?", and she helped other people (like her husband) complete their own studies and discoveries.

Première diffusion : 17 décembre 2018

S1 E32 • Einstein's Revolution

There was physics before Einstein in the same way that there was biology before Darwin. Einstein didn’t just add some new ideas to physics. And he didn’t just add a unifying framework for doing physics, like Newton. Einstein took what people thought was physics, turned it upside down, then turned it inside out.

Première diffusion : 7 janvier 2019

S1 E33 • The Atomic Bomb

The story picks up where we left off last time, with Einstein writing the president of his new homeland, the United States, urging him to build a nuclear weapon before Hitler. This is the tale of the most destructive force humans have ever unleashed. The Atomic Bomb.

Première diffusion : 14 janvier 2019

S1 E34 • Biomedicine

The history of science up until the Cold War is often overshadowed by the Manhattan Project. But, today we are going to talk about advances in biomedicine, or healthcare based on a biological understanding of human bodies and diseases.

Première diffusion : 21 janvier 2019

S1 E35 • Genetics and The Modern Synthesis

Remember how Darwin and Mendel lived around the same time, but everyone forgot about Mendel until 1900, and even then biologists saw Darwinism and Mendelism as two competing grand theories about how life works? Well, in this episode of Crash Course History of Science, we're going to bring everything together into a new Modern Biology!

Première diffusion : 4 février 2019

S1 E36 • The Computer and Turing

Computers and computing have changed a lot over the History of Science but ESPECIALLY over the last 100 years. In this episode of Crash Course History of Science, we have a look at that history around World War Two and how that conflict forced changes in computing.

Première diffusion : 11 février 2019

S1 E37 • Air Travel and The Space Race

Like the Industrial or the Einsteinian Revolution, the Space Race is a trope, or way of organizing historical events into a story that makes sense. In this story, the two great powers that emerged after World War Two—the United States and Soviet Union—competed to send communications satellites, dogs, and people into outer space.

Première diffusion : 18 février 2019

S1 E38 • Ecology

We’ve explored the origins of modern biology, the earth sciences, and even the sciences of outer space. Now it’s time to put these disciplines together. It's Ecology time!!!

Première diffusion : 25 février 2019

S1 E39 • Controlling the Environment

Well, it wouldn't be too long after we started developing Ecology that we would try to control the environment. In some ways this was helpful and likely prevented a lot of people from starving. But, there have been a few downsides.

Première diffusion : 4 mars 2019

S1 E40 • Biotechnology

The history of discovering what DNA is, what it looks like, and how it works is... complicated. But, in this episode of History of Science, Hank Green does his best to lay out the basics so we can understand the beginnings of Biotechnology.

Première diffusion : 18 mars 2019

S1 E41 • Bodies and Dollars

After World War Two, the applications of basic discoveries in biology took off—and became big business. Today, we’ll look at the rise of Big Pharma and GMO foods. We’ll also discuss how life-science technologies fundamentally changed reproduction: it’s time to invent In Vitro Fertilization and clone a sheep!

Première diffusion : 25 mars 2019

S1 E42 • The Century of the Gene

Première diffusion : 1 avril 2019

S1 E43 • The Internet and Computing

Première diffusion : 8 avril 2019

S1 E44 • Life and Longevity

Première diffusion : 15 avril 2019

S1 E45 • Climate Science

Première diffusion : 22 avril 2019

S1 E46 • The Limits of History

Première diffusion : 29 avril 2019