As a wildfire rages through the grasslands, three lions and three wildebeest flee for their lives. To escape the inferno, they must cross over to the left bank of a crocodile-infested river. Can you help them figure out how to get across...

Seeking closure is normally a good thing, but it also has a dark side. And if you’re not careful, chasing after it could set you up for some pretty bad decisions.

Moser's circle problem, and its solution.

As we recklessly warm the planet by pumping greenhouse gases into the atmosphere, some industrial emissions also produce particles that reflect sunshine back into space, putting a check on global warming that we're only starting to...

It's your first day as Center Realm's official cartographer, and you've already got a big problem. Center Realm is home to three elder dragons: two ice, one fire, and they've lived in harmony for centuries. But scouts have sighted three...

Honestly, “spreadsheets” are kind of the vegetables of the business world -- the very idea of them makes some people queasy. But that’s ok! They can be intimidating, but they’re not impossible to understand. Today we’re going to learn to...

One of the top chefs from Pasta Palace has been kidnapped by operatives from Burger Bazaar hoping to learn the location of their secret sauce recipe. Little do they know that a third party— Sausage Saloon— has sent you, their top spy, to...

Today we’re going to talk about good and bad surveys. From user feedback surveys, telephone polls, and those questionnaires at your doctors office, surveys are everywhere, but with their ease to create and distribute, they're also...

Today we explore what obligations we hold with our personal beliefs. Hank explains epistemic responsibility and the issues it raises with everything from religious belief, to ship owning, to vaccinations.

If we want to build a place for us to live, or to hang out, or do eat dinner with our friends, we're going to need a special kind of engineering called architecture. In this episode of Crash Course Kids, Sabrina gets us to help her build...

Do we really have free will? Today Hank explores possible answers to that question, explaining theories like libertarian free will and it’s counterpoint, hard determinism.

Why do people often buy the same brands over and over again?

We're surrounded by choices in life, but psychologists have found that having those choices doesn't necessarily make us happy.

This video is about how causal models (which use causal networks) allow us to infer causation from correlation, proving the common refrain not entirely accurate: statistics CAN be used to prove causality! Including:...

Like any committed relationship, the relationship between a business and its customers needs nurturing. And that shouldn’t come as a surprise! We need customers to run a successful business, and naturally they’re going to have certain...

Every day, a sea of decisions stretches before us, and it's impossible to make a perfect choice every time. But there are many ways to improve our chances -- and one particularly effective technique is critical thinking. Samantha Agoos...

In this video, we introduce Inter-VLAN routing, explaining how traffic moves between VLANs in a network.

This video explains selective stashing changes and how to retrieve them.

In this video, explore PPPoE, a protocol used to establish direct connections over Ethernet for WAN links.

In this video, discover how leased lines provide dedicated bandwidth for businesses in a WAN environment.

In this video, learn the syntax of ACLs and how to write efficient rules for traffic filtering.

Design your ideal Linux practice lab. This video guides you through planning and structuring a lab environment that mimics real-world configurations for optimal learning.

Manage system power states with shutdown, reboot, and halt commands, ensuring safe and controlled system operations.

Understand the structure of Linux commands, unlocking the ability to construct commands with confidence and precision.