Eye dilation
The iris is the colored part of the eye. The pupil is the dark circle in the middle of the iris. The iris causes the pupil to expand or contract depending on the amount of light in a given area. Once light passes through the pupil, a structure called the lens that is directly behind the pupil focuses the light at the back of the eye. The optic nerve, located at the back of the eye, takes the focused message and relays it to the brain where it is processed into an image.
Author(s): Greyson Orlando

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Rights not set

House #1
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CEO Hits the Road to Spread Word
Our CEO is stopping by libraries and schools across the country to spread the word about WatchKnowLearn.org. This is a news clip from King5 TV in Seattle, WA and aired on October 26, 2011. (02:20)
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Demo: Using BLAST/BLAT in Ensembl
We demonstrate the BLAST/BLAT tool in Ensembl. Search for a sequence in www.ensembl.org, and identify hits to the genome, or to genes, with this tool.
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Wild About Safety with Timon and Pumbaa - Safety Smart Healthy & Fit
Timon and Pumbaa show you how to be healthy and fit with their germ-free philosophy. From the importance of hand-washing to making healthy food choices, Timon and Pumbaa's Safety Smart® Checklist is brimming with valuable kid-friendly lessons on how to prevent the spread of germs and maintain overall well-being. Now, that's Safety Smart! (12:32)
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Rebirth of A Nation: Can Libya Develop Stable Democracy?
Pulitzer Center journalist William Wheeler looks at Libya's attempt to transform itself into a stable, peaceful and democratic country. Wheeler is in Libya working on his latest project "Libya: The Rebirth of a Nation" (http://bit.ly/tDgViS) He is investigating the efforts of Libya's new leaders to disarm and integrate the disparate bands of fighters now in Tripoli's streets, and its willingness to account for the thousands of guest workers whose fate is still unknown.
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Online Course Offerings: Issues of Retention and Professional Relationship Skill Development
Mark Weber, Tod Allen Farmer
Educational leadership preparation programs are often associated with relationship building skill development and maintenance. The emergence of online course delivery in higher education has […]
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Texas Tech Experts Address Changing Climate Conditions
Texas Tech experts are ready to address residents of the South Plains at an upcoming forum "Our Climate Challenge -- Solutions on the South Plains." A panel discussion will examine how residents on the South Plains can adapt and meet the needs of a changing climate. The forum takes place Thursday, November 3, 2011 at the International Cultural Center at 7pm on the Texas Tech campus.
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English conference: Sports Writing in the Internet Age
Mary Ullmer, the Sports Editor for the Grand Rapids Press, explains the difficulties of sports writing in today's world.
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Halloween House
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Best October in 20 years
Oct 31 - The S&P 500 shines in October with the best monthly gains since 1991. Even with a selloff on the last day of trading the benchmark index gained nearly 11 percent for the month. Carmen Roberts reports.
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BERC Innovation Expo Keynote Address by Jigar Shah
The Berkeley Energy and Resources Collaborative (BERC) is an interdisciplinary, student- run organization that was founded in 2005 to enhance collaboration on energy and natural resources topics and to serve as a bridge between the university and the private sector. The Expo is the opening event of the 2011 BERC Energy Symposium, the largest student-run energy confer- ence on the West Coast, drawing key players from research, business development, policy, and economics communities across the na
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The Presence of the Past: Legal Dimensions of Armenian-Turkish Relations (Afternoon Session)
The Presence of the Past: Legal Dimensions of Armenian-Turkish Relations This symposium explores three contentious issues which are preventing Armenian-Turkish rapprochement. Speakers: Stephan Astourian, The University of Claifornia, Berkeley; Alfred de Zayas, Geneva School of Diplomacy and International Relations; Susan Karamanian, The George Washington University Law School; Catherine Kessedjian, University Pantheon-Assas, Paris II; Raymond Kevorkian, Institut français de géopolitique, Uni
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Is the world any closer to closing the gender gap?
Despite improvement in the health and education spheres, women still fall behind in economic sectors around the world. Listen to what World Economic Forum Senior Director Saadia Zahidi tells Reuters Michelle Nichols about the 2011 Global Gender Gap report.
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Number Line
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Regulators on top of MF Global
Nov. 3 - Mary Schapiro, chairman of the U.S. Securities and Exchange Commission, says the U.S. regulator is conducting a broad review of MF Global, which filed for bankruptcy protection earlier this week. Rough cut. No reporter narration.
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Area of a Regular Hexagon
In this eight-minute video, Sal Khan focuses on using what we know about triangles to find the area of a regular hexagon.
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Species
In this nine-minute video, Sal Khan of Khan Academy, discusses what a species is and isn't. He talks about Ligers, tiglons, mules, hinnies, and dogs.
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Authors@Google: Harry Kraemer
Harry M. Kraemer visited Google's Chicago office to talk about his book From Values to Action: The Four Principles of Values-Based Leadership on September 6, 2011. About the book: Respected former CEO, professor, and speaker examines what it takes to become a values-based leader Harry Kraemer argues that today's business environment demands values-based leaders who, in "doing the right thing," deliver outstanding and lasting results. The journey to becoming a values-based leader starts with s
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155: The corruption trap
Emerging markets are where money is to be made: pent up consumer demand, cheap labour, few regulations. But just under the surface lies the murky world of corruption, ready to derail even the most scrupulous businessperson. Now what?
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