The topic of this video module is how to classify animals based …
The topic of this video module is how to classify animals based on how closely related they are. The main learning objective is that students will learn how to make phylogenetic trees based on both physical characteristics and on DNA sequence. Students will also learn why the objective and quantitative nature of DNA sequencing is preferable when it come to classifying animals based on how closely related they are. Knowledge prerequisites to this lesson include that students have some understanding of what DNA is and that they have a familiarity with the base-pairing rules and with writing a DNA sequence.
In this art history video Dr. Beth Harris and Dr. Steven Zucker …
In this art history video Dr. Beth Harris and Dr. Steven Zucker discuss Claus Sluter and Claus de Werve's, "Mourners", Tomb of Philip the Bold, Duke of Burgundy, installed 1410. In the Museum of Fine Arts, Dijon.
The architecture of the social internet itself tells us not to be …
The architecture of the social internet itself tells us not to be patient - to load more tweets, to hit refresh for new posts, and to click the top search results. But just because information is new, or algorithmically determined to be most relevant to you, doesn't necessarily mean it's the best or most accurate. So today we're going to teach you some tips to exercise a little more click restraint on the Internet.
In which John Green teaches you about the Little Ice Age. The …
In which John Green teaches you about the Little Ice Age. The Little Ice Age was a period of global cooling that occurred from the 13th to the 19th centuries. This cooling was likely caused by a number of factors, including unusual solar activity and volcanic eruptions. The Little Ice Age greatly impacted human social orders, especially during the 17th century. When the climate changed, and the weather became unpredictable, the world changed profoundly. Poor harvests led to hunger, which led to even less productivity, which even resulted in violent upheaval in a lot of places. All this from a little change in the temperature? Definitely.
This video adapted from KTOO takes a look at Earth's warming and …
This video adapted from KTOO takes a look at Earth's warming and cooling cycles and the current atypical trend of warming that is impacting the glaciers in Alaska's Inside Passage.
Host Harry Kreisler welcomes scientist Lars-Erik Liljelund, Director General of the Swedish …
Host Harry Kreisler welcomes scientist Lars-Erik Liljelund, Director General of the Swedish Environmental Protection Agency, for a discussion of Swedish policy for addressing climate change and global warming. He reflects on his own career which combines work in public policy and science. He also talks about the distinctive quality of the global warming problem and the obstacles for finding and implementing solutions. 54 min)
Scientists tend to be careful and resistant to big claims. So evidence …
Scientists tend to be careful and resistant to big claims. So evidence for the possible end of the living world took a while to be seen as such. In this episode of Crash Course History of Science, Hank talks to us about where Climate Science started and how it works today.
This patient education program explains clinical trials and answers some frequently asked …
This patient education program explains clinical trials and answers some frequently asked questions. This is a MedlinePlus Interactive Health Tutorial from the National Library of Medicine, designed and developed by the Patient Education Institute.
In which John Green teaches you about the United States as it …
In which John Green teaches you about the United States as it was in the 1990s. You'll remember from last week that the old-school Republican George H.W. Bush had lost the 1992 presidential election to a young upstart Democrat from Arkansas named Bill Clinton. Clinton was a bit of a dark horse candidate, having survived a sex scandal during the election, but a third-party run by Ross Perot split the vote, and Clinton was inaugurated in 1993. John will teach you about Clinton's foreign policy agenda, which included NATO action in the Balkans and the Oslo Accords between Israel and the PLO. He'll also cover some of the domestic successes and failures of the Clinton years, including the failed attempt at healthcare reform, the pretty terrible record on GLBTQ issues, Welfare reform, which got mixed reviews, and the happier issues like the huge improvements in the economy. Also computers. Cheap, effective, readily available computers came along in the 1990s, and they kind of changed the world, culminating in this video, which is the end of the internet. Until next week.
Chapters: Introduction: The Clinton Years Clinton's Foreign Policy Terrorism During the Clinton Era Clinton's Domestic Policy Clinton's Triangulation Strategy Clinton's Welfare Reforms Economics During the Clinton Era The E-Commerce Boom Mystery Document Globalization of Manufacturing, Technology, and Commerce The Crash of 2000 Increasing Wealth Inequality The Culture Wars An Influx of Immigration Diverse Family Structures The AIDS Epidemic & LGBT Rights Movement Imprisonment & the "War on Drugs" Multiculturalism & Political Tensions Clinton's Infidelity & Impeachment Clinton's Legacy Credits
In which John Green wraps up revolutions month with what is arguably …
In which John Green wraps up revolutions month with what is arguably the most revolutionary of modern revolutions, the Industrial Revolution. While very few leaders were beheaded in the course of this one, it changed the lives of more people more dramatically than any of the political revolutions we've discussed. So, why did the Industrial Revolution happen around 1750 in the United Kingdom? Coal. Easily accessible coal, it turns out. All this, plus you'll finally learn the difference between James Watt and Thomas Newcomen, and will never again be caught telling people that your blender has a 900 Newcomen motor.
Chapters: Introduction: The Industrial Revolution What Was the Industrial Revolution? Innovations in the British Textile Industry Why did the Industrial Revolution start in Europe? An Open Letter to the Steam Engine What was going on in China during the Industrial Revolution? European Advantages: High Wages and Low Fuel Costs What was going on in India during the Industrial Revolution? Credits
Cocaine afflicts many individuals and is potently addictive. Originally hailed as a …
Cocaine afflicts many individuals and is potently addictive. Originally hailed as a wonder-drug in the late 19th century, cocaine is now considered an illegal substance. Cocaine’s addictive properties can be attributed to changes in the dopamine reward pathway of the Ventral Tegmental Area and Substantia Nigra, Prefrontal Cortex, Dorsal Striatum, Nucleus Accumbens, Amygdala, Globus Pallidus, and Hippocampus. This drug affects the brain in two processes: binge and crave. The binge process highlights cocaine’s ability to block dopamine reuptake from the synapse resulting in hyperstimulation of the postsynaptic neuron in the dopamine reward pathway. The crave process promotes drug-seeking behavior through conditional and contextual cues. Understanding the effects of cocaine in the brain may grant insight in creating future medication and therapies to treat individuals addicted to this drug.
These slides are used to guide a discussion with students introducing them …
These slides are used to guide a discussion with students introducing them to the notion of public interest technology and coding for the public good. The lesson is intended to spark a discussion with students about different sorts of technology and their societal ramifications.
Comments Note that these slides use Poll Everywhere polls; to use them, you will need to create your own Poll Everywhere account.
We used to think that the human brain was a lot like …
We used to think that the human brain was a lot like a computer; using logic to figure out complicated problems. It turns out, it's a lot more complex and, well, weird than that. In this episode of Crash Course Psychology, Hank discusses thinking & communication, solving problems, creating problems, and a few ideas about what our brains are doing up there.
In which John Green teaches you about the Cold War, the decades-long …
In which John Green teaches you about the Cold War, the decades-long conflict between the USA and the USSR. The Cold War was called cold because of the lack of actual fighting, but this is inaccurate. There was plenty of fighting, from Korea to Viet Nam to Afghanistan, but we'll get into that stuff next week. This week we'll talk about how the Cold War started. In short, it grew out of World War II. Basically, the Soviets occupied Eastern Europe and the US-supported western Europe. This setup would spill across the world, with client states on both sides. It's all in the video. You should just watch it.
Chapters: Introduction: The Cold War Era The Aftermath of WWII USSR Expansion & Containment The Truman Doctrine The Marshall Plan The Berlin Crisis Mystery Document Consensus on Cold War Policies Impact of the Cold War on Domestic Policy Espionage, McCarthyism, and the Red Scare Credits
Today we’re going to step back from hardware and software, and take …
Today we’re going to step back from hardware and software, and take a closer look at how the backdrop of the cold war and space race and the rise of consumerism and globalization brought us from huge, expensive codebreaking machines in the 1940s to affordable handhelds and personal computers in the 1970s. This is an era that saw huge government funded projects - like the race to the moon. And afterward, a shift towards the individual consumer, commoditization of components, and the rise of the Japanese electronics industry.
In which John Green teaches you about the Cold War as it …
In which John Green teaches you about the Cold War as it unfolded in Asia. As John pointed out last week, the Cold War was occasionally hot, and a lot of that heat was generated in Asia. This is starting to sound weird with the hot/cold thing, so let's just say that the United States' struggle against communist expansion escalated to a full-blown, boots-on-the-ground war in Korea and Vietnam. In both of these cases, the United States sent soldiers to intervene in civil wars that it looked like communists might win. That's a bit of a simplification, but John will explain it all to you.
Chapters: Introduction: The Cold War in Asia The Korean War Eisenhower's Election Cost of the Korean War Mystery Document Ho Chi Minh American Involvement in Vietnam The Gulf of Tonkin Incident Operation Rolling Thunder Fighting in Vietnam Public Opinion and the Vietnam War Nixon's Plan to Leave Vietnam Anti-War Sentiments The End of the Vietnam War Credits
COLLISIONS! A big part of physics is understanding collisions and how they're …
COLLISIONS! A big part of physics is understanding collisions and how they're not all the same. Mass, momentum, and many other things dictate how collisions can be unique. In this episode of Crash Course Physics, Shini sits down to lead us through an understanding of collisions. Plus, she brings along our old friend Sir Isaac Newton.
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