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.
Australian Fires: 1-4-2002
Zooming down to New South Wales, Australia to view smoke.
MODIS Snow Cover over North America
The Moderate Resolution Imaging Spectroradiometer (MODIS) provides data in 36 spectral bands, some of which are used in an algorithm to map global snow cover. In this animation, a time series of global snow cover from MODIS-derived 8-day composite snow maps with a spatial resolution of about 5 km shows the dynamic behavior of the advance and retreat of continental snow cover over North America during the winter of 2001-02.
Daily Snow and Sea Ice Temperature over Asia
This animation shows the global advance and retreat of daily snow cover along with daily sea ice surface temperature over Asia from September 2002 through May 2003. The snow cover was measured by the MODIS instrument on the Terra satellite, while the sea ice surface temperature was measured by the MODIS instrument on the Aqua satellite. Since these instruments cannot take measurements through clouds, in cloud-covered regions or areas with suspect data quality, the prior days value is retained un
Ramiro Martinez, Jr., on Latino crime stereotypes
Ramiro Martinez, Jr., a professor in the School of Criminology and Criminal Justice and in the Department of Sociology and Anthropology, discusses that while people may perceive certain groups, such as immigrants and Latinos to have higher rates of violent crime, data has actually shown that this is not the case.
Red Ribbon Week - Poinsons
Red Ribbon Week. This video discusses things that are good for you and things that are not. (01:08)
Red Ribbon Week - Good vs Bad Drugs
Red Ribbon Week. This video discusses things that are good for you and things that are not. When is a drug good for you or bad for you.(01:08)
Red Ribbon Week - Drinking and Smoking
Red Ribbon Week. What's the best way to help someone you love who is struggling in life? This video addresses what to do if you know someone who is drinking or smoking. And what if they are adults? (01:08)
Exploring the Moon
Future astronauts return to the lunar surface in this animation. For larger resolution and downloads see: http://www.nasa.gov/multimedia/videogallery/
Gene Stories: The Court of Opinion
Part of a BBC Web site devoted to demystifying the world of genes, the Court of Opinion offers users a fun, interactive way to explore some of the ethical issues raised in the field of genetic research. Users step into a virtual courtroom to hear from "the scientists, the campaigners, the advocates and the voices of dissent." Three courtrooms are available, each focused on a different issue, such as the relative contribution of nature (our genes) versus nurture (our environments) to human behavi
How to Do Economic History UIL 2010 WICKED An Introduction to Togitsu, Japan GULP: Towering ambition CIS STARR Forum: Border Security in the 21st Century CSR as a Quality Enabler Advanced Diagnostics & Therapeutics: The Science of Engineering a Healthier World What is the futue of learning in Canada? - Dr. Paul Cappon How Matt Ridgway Kept Us Out of War, and Eric Shinseki Did Not Walcott and Naipaul: History and Myth
A Japanese college student introduces her hometown, Togitsu, Japan, in this selection. The selection contains a slide show of photos with narration provided by the student. ( 3:36)
Dr Amy Frost of the Bath Preservation Trust provides a deatailed biography of William Beckford
Alan Bersin, Commissioner of US Customs and Border Protection
Chappel Lawson, Associate Professor of Political Science at MIT
“Sustainability” is about more than being environmentally or socially responsible. The story of Tchibo Coffee shows that it can also give customers consistent quality.
Advanced Diagnostics & Therapeutics, one of the University of Notre Dame's strategic research investments, breaks down barriers and fosters new collaborations across the Colleges of Science and Engineering. The initiative's faculty and students are creating technologies and tools to combat disease, promote health, and safeguard the environment—all with a commitment to addressing developing world problems and a focus on commercializing Notre Dame discoveries. http://advanceddiagnostics.nd.edu/
Dr. Paul Cappon, Canadian Council on Learning, presented CCL's recent findings on all aspects of the learning cycle: from early childhood through school, post-secondary education, and adult and workplace learning and training.
Dr. Conrad Crane, director of the Military History Institute, discusses "How Gen. Ridgway kept us out of war and Gen Shinseki did not" during a noontime lecture at the Army War College Oct. 19.
Catherine Brown, Lecturer in English Literature, compares West Indian writers Derek Walcott and Vidiadhar Surajprasad Naipaul on their attitudes towards history and myth.
UIL 2010 WICKED
An Introduction to Togitsu, Japan
GULP: Towering ambition
CIS STARR Forum: Border Security in the 21st Century
CSR as a Quality Enabler
Advanced Diagnostics & Therapeutics: The Science of Engineering a Healthier World
What is the futue of learning in Canada? - Dr. Paul Cappon
How Matt Ridgway Kept Us Out of War, and Eric Shinseki Did Not
Walcott and Naipaul: History and Myth