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Protein Translation
This animation (start by clicking on image) demonstrates protein translation in the context of a ribosome. One tRNA at a time is grabbed, to incorporate each amino acid into the growing polypeptide. Amino acids are depicted as spheres, RNAs as lines, and ribosomal subunits as ovals.
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Engineering Your Own Spectrograph
Students use simple materials to design an open spectrograph so they can calculate the angle light is bent when it passes through a holographic diffraction grating. A holographic diffraction grating acts like a prism, showing the visual components of light. After finding the desired angles, students use what they have learned to design their own spectrograph enclosure.
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Fooled by Nature: Beaver Dams
On Animal Planet's series "Fooled by Nature," beavers create dams in
order collect more water and store food. One beaver can chop down 200
trees a year and it only takes a few hours for them to gnaw through and this three minute video shows them how they do it and why.

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Assignment Discovery: The Four Types of Plants
This 40 second video quickly reviews the 4 different types of plants:
bryophytes, ferns and fern allies, gymnosperms and angiosperms. A quick introduction.

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Brush Your Teeth Now!
This cute video will show young learners how to correctly brush their teeth with a fun song. Some of the lyrics include "Brush your teeth everybody. Won't you show me how? Brush at the back. Brush at the Front" Words to the song appear at bottom of screen as song is sung.
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Hurricane Bonnie from TRMM with Cloud Tower: August 22, 1998 (Short Version)
These compelling images are from Hurricane Bonnie showing a cumulonimbus storm cloud, towering like a sky scraper, 59,000 feet (18 kilometers) into the sky from the eyewall. These images were obtained on Saturday, 22 August 1998, by the worlds first space-born rain RADAR aboard the Tropical Rainfall Measuring Mission (TRMM), a joint U.S.-Japanese mission. Launched November 27, 1997, the TRMM spacecraft continues to provide exciting new insight into cloud systems over tropical oceans. By comparis
Author(s): Chris Kummerow,Greg Shirah

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Hurricane Bonnie from TRMM with Cloud Tower: August 22, 1998 (Long Version)
These compelling images are from Hurricane Bonnie showing a cumulonimbus storm cloud, towering like a sky scraper, 59,000 feet (18 kilometers) into the sky from the eyewall. These images were obtained on Saturday, 22 August 1998, by the worlds first space-born rain RADAR aboard the Tropical Rainfall Measuring Mission (TRMM), a joint U.S.-Japanese mission. Launched November 27, 1997, the TRMM spacecraft continues to provide exciting new insight into cloud systems over tropical oceans. By comparis
Author(s): Chris Kummerow,Greg Shirah

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Hurricane Bonnie (1998) Crystal Cathedral View of Precipitation with TRMM Data
This animation is an early experiment in using transparency for representing precipitation isosurfaces with TRMM data.
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Hurricane Alberto from TRMM: August 8, 2000
Orbit T05-07
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El Nino-La Nina Sea Surface Temperature, Height, and Wind Anomalies: January 1997 through November 1
An animation of sea surface temperature, height, and wind anomalies in the Pacific for January 1997 through November 1998. (Wind anomalies stop at October 1998.)
Author(s): Antonio Busalacchi,Greg Shirah

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Total Ozone over Antarctica from TOMS: Jul 1, 1998 through Oct 1, 1998 (Rotation to Pole)
Total ozone over Antarctica for the period July 1, 1998 through October 1, 1998 as measured by Earth Probe TOMS. Dark blue represents regions of low ozone and red represents regions of high ozone.
Author(s): Greg Shirah,Paul Newman

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"Astrodynamics, Fall 2008"
" This course covers the fundamentals of astrodynamics, focusing on the two-body orbital initial-value and boundary-value problems with applications to space vehicle navigation and guidance for lunar and planetary missions, including both powered flight and midcourse maneuvers. Other topics include celestial mechanics, Kepler's problem, Lambert's problem, orbit determination, multi-body methods, mission planning, and recursive algorithms for space navigation. Selected applications from the Apoll
Author(s): Battin, Richard

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Gait Exam: Abnormal Examples: Ataxic Gait
This woman's gait is wide-based and unsteady. She has to use a walker or hold on to someone in order to maintain her balance (note how hard she has to work with the hand that she's holding on with in order to maintain her balance). Her ataxia is even more apparent when she tries to turn. The first principle of neurologic diagnosis is regional or anatomical localization. In order to become skillful the student must understand how structure relates to function of the nervous system. The neurologic
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Microscopy of Air/Water Biofilms in the Undergraduate Laboratory: A Simple Collection Kit with Multi
Naturally occurring air/water interface biofilms are ubiquitous, but largely unexplored. They provide ideal samples for introductory microscopy and microbiology. This activity introduces a simple method for collecting samples from nature or the lab and gives detailed instructions on preparing a simple collecting kit and optimum viewing with student microscopes. Useful features of this activity include: the ideal nature of a wide assortment of ubiquitous air/water interface biofilms for microscop
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Discovering U.S. Empire through the Archive
AnaMaria Seglie
This module explores 19th-century relations between the U.S. and Mexico as well as the U.S. and Native Americans through the travel journal of Mirabeau B. Lamar, the second president of the […]

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Insights Into Origins of Spliceosomal Introns
A look into the evolution of one family of proteins. Lecture from the Women in Bioinformatics series. Stella Veretnik, Ph.D. Computational Molecular Biology, National Laboratory for Computational Science and Engineering, University of California - San Diego
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Wild Wind
Students will learn the difference between global, prevailing and local winds. In this activity, students will make a wind vane out of paper, a straw and a soda bottle and use it to measure wind direction over time. Finally, they will analyze their data to draw conclusions about the prevailing winds in their area.
Author(s): Janet Yowell,Jessica Todd,Malinda Schaefer Zarske,

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