Learn how to write concisely to avoid an "I" story becoming simply an outlet for your own feelings, instead using your emotions to develop a broader appeal that will interest and benefit others. Professor Cognard-Black also reveals how general tricks of the writing trade (for example, show, don't tell) don't always apply when writing essays.

Analyze heat flow, which involves three important heat-transfer mechanisms: conduction, which results from direct molecular contact; convection, involving the bulk motion of a fluid; and radiation, which transfers energy by electromagnetic waves. Study examples of heat flow in buildings and in the sun's interior.

How do we measure the passage of time? Discover that practical concerns have driven the search for more and more accurate clocks. In the 18th century, the problem of determining longitude was solved with a timepiece of unprecedented accuracy. Today's GPS navigation units rely on clocks accurate to a billionth of a second.

The sumptuous interiors of the Norman Palace are the entry point to Palermo and its rich multicultural history. Grasp Norman Sicily's historical role as the richest and best-governed state in the West. Explore the complex architecture of the city's churches, cathedral, and Palazzo Abatellis, and the cosmopolitan past of the seaport.

Turn from the brain's structure to its activity. After reviewing how we study brain function via fMRI, Professor Polk shows you how brain activity changes as we age-and how these changes impact our memory, our ability to multitask, and more. Then, learn some good news about how the brain compensates for these changes.

Again and again, we see how history turns on a dime. Your journey ends in Avignon in 1095, when Pope Urban II gives a speech that shapes the next thousand years of European history. After calling the people to action, thousands take up arms and begin the long trek to fight the Muslims and retake Jerusalem.

Netflix's ultimate domination of the video rental market is a classic example of disruptive innovation: a serious threat to traditional business-and often the hardest to respond to.

Simplicity and freshness are two hallmarks of great cooking. Case in point, the subject of this lesson: salads. Chef Briwa shows you how to keep lettuce crisp; how to make a simple (and quick) salad dressing; how to build a salad with different ingredients such as nuts, cheese, herbs, and other vegetables; how to make a hand-held Asian salad roll; and much more.

Humans are experts at pattern recognition, which is a key skill in data analysis. But when are patterns real and when are they imagined? Study some surprising correlations between apparently unrelated phenomena, asking whether there is a cause-and-effect relation or mere coincidence is involved.

Professor Rosenzweig leads you on an examination of all-too-common instances of cybercrime that involve fraud and identity theft. You'll encounter crimes that mimic real-world ones (with a computer as the "weapon") and "computer crimes" that are only possible in the cyber world. Then, find out how law enforcement authorities are fighting back against organized, international cyber criminals.