We’re kicking off our exploration of muscles with a look at the complex and important relationship between actin and myosin. Your smooth, cardiac, and skeletal muscles create movement by contracting and releasing... Read more »
In which Adriene Hill and Jacob Clifford teach you about one of the fundamental economic ideas, supply and demand. What is supply and demand? Well, you’ll have to watch the video to... Read more »
A SciShow Kids viewer wants to know, “Why do lightning and thunder happen?” Get your raincoat, because Jessi will take you inside a thunderstorm to give you the answer! ———- Like SciShow?... Read more »
In our first episode of Crash Course Engineering, Shini explains what engineering is, and gives a brief overview of its four main branches (civil, mechanical, electrical, and chemical) as well as a... Read more »
This week we answer skeptics like Descartes with empiricism. Hank explains John Locke’s primary and secondary qualities and why George Berkeley doesn’t think that distinction works — leaving us with literally nothing... Read more »
Our European history is going to start around 1500 with the Renaissance, but believe it or not, that is not the actual beginning of history in the continent. So, today, we’re going... Read more »
Today Hank kicks off our look around MISSION CONTROL: the nervous system. Pssst… we made flashcards to help you review the content in this episode! Find them on the free Crash Course... Read more »
Hank teaches us why water is one of the most fascinating and important substances in the universe. Review: Re-watch = 00:00 Introduction = 00:42 Molecular structure & hydrogen bonds = 01:38 Cohesion... Read more »
Our next stop on our tour of ethics is Kant’s ethics. Today Hank explains hypothetical and categorical imperatives, the universalizability principle, autonomy, and what it means to treat people as ends-in-themselves, rather... Read more »
Now that we’ve left behind the philosophy of religion, it’s time to start exploring what other ways might exist to find meaning in the world. Today we explore essentialism and its response:... Read more »