— In which John Green teaches you about American involvement in World War I, which at the time was called the Great War. They didn’t know there was going to be a second one, though they probably should have guessed, ’cause this one didn’t wrap up very neatly. So, the United States stayed out of…
Buffers, the Acid Rain Slayer: Crash Course Chemistry #31
— In this episode, Hank talks about how nutty our world is via Buffers! He defines buffers and their compositions, talks about carbonate buffering systems in nature, acid rain, pH of buffers, and titration. Plus, a really cool experiment using indicators to showcase just how awesome buffers are. — — Transcript Provided by YouTube: …
Progressive Presidents: Crash Course US History #29
— In which John Green teaches you about the Progressive Presidents, who are not a super-group of former presidents who create complicated, symphonic, rock soundscapes that transport you into a fantasy fugue state. Although that would be awesome. The presidents most associated with the Progressive Era are Theodore Roosevelt, William Taft, and Woodrow Wilson. During…
pH and pOH: Crash Course Chemistry #30
— In this episode, Hank goes over Reversible Reactions, the water dissociation constant, what pH and pOH actually mean, Acids, Bases, and Neutral Substances as well as the not-so-terrifying Logarithms, strong acids, weak acids, and how to calculate pH and pOH. Oh, and litmus paper! — — Transcript Provided by YouTube: 00:00 This may…
American Imperialism: Crash Course US History #28
— In which John Green teaches you about Imperialism. In the late 19th century, the great powers of Europe were running around the world obtaining colonial possessions, especially in Africa and Asia. The United States, which as a young country was especially suceptible to peer pressure, followed along and snapped up some colonies of its…
Equilibrium Equations: Crash Course Chemistry #29
— In which Hank shows you that, while it may seem like the Universe is messing with us, equilibrium isn’t a cosmic trick. Here, he shows you how to calculate equilibrium constant & conditions of reactions and use RICE tables all with some very easy, not-so-scary math. — — Transcript Provided by YouTube: 00:00…
The Progressive Era: Crash Course US History #27
— In which John Green teaches you about the Progressive Era in the United States. In the late 19th and early 20th century in America, there was a sense that things could be improved upon. A sense that reforms should be enacted. A sense that progress should be made. As a result, we got the…
Equilibrium: Crash Course Chemistry #28
— In this episode of Crash Course Chemistry, Hank goes over the ideas of keeping your life balance… well, your chemical life. Equilibrium is all about balance and today Hank discusses Chemical Equilibrium, Concentration, Temperature, and Pressure. Also, he’ll chat about Le Chatalier’s Principle and Fritz Haber. — — Transcript Provided by YouTube: 00:00…
Gilded Age Politics:Crash Course US History #26
— In which John Green teaches you about the Gilded Age and its politics. What, you may ask, is the Gilded Age? The term comes from a book by Mark Twain and Charles Dudley Warner titled, “The Gilded Age.” You may see a pattern emerging here. It started in the 1870s and continued on until…
Solutions: Crash Course Chemistry #27
— This week, Hank elaborates on why Fugu can kill you by illustrating the ideas of solutions and discussing molarity, molality, and mass percent. Also, why polar solvents dissolve polar solutes, and nonpolar solvents dissolve nonpolar solutes. All that plus Henry’s Law and why Coke = Burps. — — Transcript Provided by YouTube: 00:00…
Growth, Cities, and Immigration: Crash Course US History #25
— In which John Green teaches you about the massive immigration to the United States during the late 19th and early 20th century. Immigrants flocked to the US from all over the world in this time period. Millions of Europeans moved to the US where they drove the growth of cities and manned the rapid…
Liquids: Crash Course Chemistry #26
— In this episode of Crash Course Chemistry, Hank gives you the low down on things like London Dispersion Forces, Hydrogen Bonds, Cohesion, Adhesion, Viscosity, Capillary Action, Surface Tension, and why liquids are just… WEIRD! — — Transcript Provided by YouTube: 00:00 At the risk of sounding like I’m on drugs, aren’t liquids like,…
Westward Expansion: Crash Course US History #24
— In which John Green teaches you about the Wild, Wild, West, which as it turns out, wasn’t as wild as it seemed in the movies. When we think of the western expansion of the United States in the 19th century, we’re conditioned to imagine the loner. The self-reliant, unattached cowpoke roaming the prairie in…
Orbitals: Crash Course Chemistry #25
— In this episode of Crash Course Chemistry, Hank discusses what Molecules actually look like and why, some quantum-mechanical three dimensional wave functions are explored, he touches on hybridization, and delves into sigma and pi bonds. — — Transcript Provided by YouTube: 00:00 We spend a lot of time thinking about atoms as looking…
Crash Course US History Outtakes #2
— In which John Green blows some of his lines. Thrill as we pull back the curtain on the making of Crash Course US History. — — Transcript Provided by YouTube: 00:00 Hi, I’m John Green, and today we – what’s wrong? 00:03 Oh, its… no, no, no. Premature. Premature! 00:06 Starting next week,…
Bonding Models and Lewis Structures: Crash Course Chemistry #24
— Models are great, except they’re also usually inaccurate. In this episode of Crash Course Chemistry, Hank discusses why we need models in the world and how we can learn from them… even when they’re almost completely wrong. Plus, Lewis Structures! — — Transcript Provided by YouTube: 00:00 So models are cool. Not…those models.…