Crash Course
Alan Turing: Crash Course Computer Science
Today we’re going to take a step back from programming and discuss the person who formulated many of the theoretical concepts that underlie modern computation - the father of computer science himself: Alan Turing. Now normally we try to...
TED Talks
TED: Your smartphone is a civil rights issue | Christopher Soghoian
The smartphone you use reflects more than just personal taste ... it could determine how closely you can be tracked, too. Privacy expert and TED Fellow Christopher Soghoian details a glaring difference between the encryption used on...
Crash Course
Educational Technology: Crash Course Computer Science
Today we’re going to go a little meta and talk about how computer science can support learning with educational technology. We here at Crash Course are big fans of interactive in-class learning and hands-on experiences, but we also...
Curated Video
Estimating Angle Measurements Using Visual Clues
In this video, the teacher explains how to estimate the measure of angles using visual clues and benchmark angles. They give examples of estimating the angle of a plane's takeoff, the opening angle of a door, and the angle formed by bike...
Communication Coach Alex Lyon
Leadership Styles: Autocratic, Democratic, and Laissez-Faire
The leadership styles area of research is a foundational area of leadership studies. It articulates three domiant approaches leader gravitate toward: Autocratic, democratice, and laissez-fair. Each style has strengths and weaknesses.
JJ Medicine
Chloroquine & Hydroxychloroquine | Mechanism of Action, Targets (Malaria), Adverse Effects
Chloroquine & Hydroxychloroquine | Mechanism of Action, Targets (Malaria), Adverse Effects In this lesson, we discuss the medications known as chloroquine and hydroxychloroquine, including how they are administered, metabolized and...
TED Talks
TED: How love can help repair social inequality | Chloé Valdary
What does Kendrick Lamar have in common with Disney's "Moana"? They recognize our common humanity and show us how to love ourselves and one another, says writer and educator Chloé Valdary. She shares how she uses pop culture to help...
Crash Course
How Computers Calculate - the ALU: Crash Course Computer Science
Today we're going to talk about a fundamental part of all modern computers. The thing that basically everything else uses - the Arithmetic and Logic Unit (or the ALU). The ALU may not have the most exciting name, but it is the...
Crash Course
Computer Networks: Crash Course Computer Science
Today we start a three episode arc on the rise of a global telecommunications network that changed the world forever. We’re going to begin with computer networks, and how they grew from small groups of connected computers on LAN networks...
Crash Course
The First Programming Languages: Crash Course Computer Science
So we ended last episode with programming at the hardware level with things like plugboards and huge panels of switches, but what was really needed was a more versatile way to program computers - software! For much of this series we’ve...
Crash Course
Pitching and Pre-Production: Crash Course Film Production
Pitching your movie to people can be hard. A studio, a friend, your mom... each of these entities will have different stressed and give you different results. But, what's important in a pitch? And what happens after the pitch? How do you...
Crash Course
The Personal Computer Revolution: Crash Course Computer Science
Today we're going to talk about the birth of personal computing. Up until the early 1970s components were just too expensive, or underpowered, for making a useful computer for an individual, but this would begin to change with the...
Crash Course
Screens & 2D Graphics: Crash Course Computer Science
Today we begin our discussion of computer graphics. So we ended last episode with the proliferation of command line (or text) interfaces, which sometimes used screens, but typically electronic typewriters or teletypes onto paper. But by...
Crash Course
Electronic Computing: Crash Course Computer Science
So we ended last episode at the start of the 20th century with special purpose computing devices such as Herman Hollerith’s tabulating machines. But as the scale of human civilization continued to grow as did the demand for more...
Crash Course
Keyboards & Command Line Interfaces: Crash Course Computer Science
Today, we are going to start our discussion on user experience. We've talked a lot in this series about how computers move data around within the computer, but not so much about our role in the process. So today, we're going to look at...
Crash Course
Early Programming: Crash Course Computer Science
Since Joseph Marie Jacquard’s textile loom in 1801, there has been a demonstrated need to give our machines instructions. In the last few episodes, our instructions were already in our computer’s memory, but we need to talk about how...
Crash Course
Hackers & Cyber Attacks: Crash Course Computer Science
Today we're going to talk about hackers and their strategies for breaking into computer systems. Now, not all hackers are malicious cybercriminals intent on stealing your data (these people are known as Black Hats). There are also White...
Crash Course
Cybersecurity: Crash Course Computer Science
Cybersecurity is a set of techniques to protect the secrecy, integrity, and availability of computer systems and data against threats. In today’s episode, we’re going to unpack these three goals and talk through some strategies we use...
Crash Course
The Internet: Crash Course Computer Science
Today, we're going to talk about how the Internet works. Specifically, how that stream of characters you punch into your browser's address bar, like "youtube.com", return this very website. Just to clarify we're talking in a broader...
Curated Video
The Chinese Massacre Explained
The Chinese Massacre of 1871 was the deadliest lynching in U.S. history – wiping out 10% of LA’s immigrant Chinese population in the space of just a few hours.
Curated Video
Ordering Fractions by Creating Common Denominators
In this video, students learn about the numerator and denominator of a fraction, and how to find the least common multiple to determine the common denominators. The teacher provides examples and guides the students through the process of...
Brainwaves Video Anthology
Chinma Uche - Why Teach Computer Science
Chinma Uche is a Math and Computer Science (CS) teacher at the Academy of Aerospace and Engineering (AAE) and the Greater Hartford Academy of Math and Science (GHAMAS). She is the 2015 CREAC Teacher of the Year. She has been at GHAMAS...
Learn German with Herr Antrim
How to Use Coordinating Conjunctions in German: und, oder, aber, denn & more!
Learn how to use the German coordinating conjunctions und, oder, aber, denn and a whole lot more with this German lesson for beginners. If you are just starting to learn German, mastering these coordinating conjunctions will boost your...