Category: Video Lessons

Biology

What Sex Ed Doesn’t Tell You About Your Brain

Puberty is not just about physical changes, but also about the transformation of the brain and how it affects thoughts, emotions, and behaviors. Hormones such as estrogen and testosterone play a key role in this transformation, reshaping brain connections and influencing emotional behavior and reward centers. While the brain continues to develop well into the 20s, adolescence is a crucial time for learning, growth, and building the skills needed for adulthood.

Biology

3 Ways To End A Virus

The article discusses the clash between the Alpha and Delta variants of the coronavirus. Using a hypothetical scenario, it explains how the more transmissible Delta variant outcompetes and drives the Alpha variant towards extinction. The article also explores the ways in which viruses can go extinct, including running out of hosts, killing all hosts, or being outcompeted by another virus or strain. It concludes by discussing the possibility of SARS-CoV-2, the virus that causes COVID-19, going extinct and the potential for a universal vaccine to prevent all infections.

Biology

Why Do You Want To Squeeze Cute Things

The phenomenon of “cute aggression,” where people feel conflicting urges to cuddle and squeeze cute animals, is surprisingly common and affects about half of all adults. Cuteness is associated with features such as plump cheeks, large eyes, and short limbs, which stimulate brain regions associated with emotion and reward. It is hypothesized that cuteness triggers nurturing instincts and that cute aggression may be a result of emotional overload rather than an actual intention to harm.

Biology

Why Are Beavers Obsessed With Dams

The article discusses the world’s longest beaver dam, which is located in northern Canada. The dam, measuring 850 meters long, has transformed the region by creating a large pond and has had significant impacts on the environment. Beaver dams, even ones much smaller than this, have the ability to redesign forests and provide benefits to both wildlife and humans.

Government

What Makes Thomas Jefferson So Controversial

The article explores the complex legacy of Thomas Jefferson, a founding father of the United States. While Jefferson is known for his contributions to equality and democracy, his participation in slavery and mistreatment of Indigenous communities raise questions about his legacy and whether historical figures should be judged by modern standards.

Biology

What’s Worse Than A Wasp’s Sting? Murder

The article discusses the gruesome and fascinating strategies employed by parasitoid wasps to ensure the survival and development of their offspring. These wasps inject venom into their hosts, manipulate their behavior, and eventually consume them alive. The article highlights various examples of this parasitic behavior, including the manipulation of cockroaches, ladybugs, gall wasps, and caterpillars.

Government

Mao Zedong’s Infamous Mango Cult

In 1968, Chairman Mao Zedong gifted factories across China with fresh mangoes, leading to a frenzy of speculation and rituals surrounding the fruit. However, this seemingly harmless gesture was actually a propaganda tool during the Cultural Revolution, a dark period of violence and repression in Chinese history. The mango fever eventually faded, but discussion of the Cultural Revolution remains restricted in China today.

Grade 10

When Are You Actually An Adult

The article explores the question of whether age is the best way to measure maturity, particularly in relation to voting rights. It discusses different ways that adulthood can be defined, such as brain development and cognitive abilities, and highlights the influence of emotional and social elements on decision-making. The article concludes that there is no exact age or moment of adulthood, but rather different waves of maturity that vary for each individual.

Critical Thinking

Can You Steal The Most Powerful Wand In The Wizarding World

The article discusses the Mirzakhani wand, a powerful magical item that the evil wizard Moldevort plans to use to conquer the world. The wand is hidden within a cave, protected by a system of 100 magical stones and platforms. The protagonist, along with Drumbledrore, must correctly place the keystone on the correct platform to reveal the wand, but there is a 50/50 chance of causing the cave to collapse. However, Drumbledrore reveals a secret weapon, a potion that grants extraordinary luck, increasing the protagonist’s chances of success.

Critical Thinking

How To Deal With Rejection

Rejection is a painful experience that triggers brain activity in the same regions that process physical pain, according to fMRI studies. The article explores the evolutionary theory of rejection and provides strategies for coping with and learning from rejection.

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