Erythemal Index for August 2000 through July 2001: Zoom to North America
The Erythemal Index is a measure of ultraviolet radiation (UV) at ground level on the Earth. UV exists to the left of the visible spectrum and is divided into three components (UV-A, UV-B and UV-C). UV-B (290-320 wavelengths) is the most dangerous form of UV radiation that can reach ground level. Atmospheric ozone shields life at the surface from most of the harmful components of solar radiation. Chemical processes in the atmosphere can effect the level of protection provided by the ozone in the
Force and Motion -- Introduction
Richard Baldwin
This module introduces force and motion in a format that is accessible to blind students.
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Editing Module Files
Connexions
This module explains how to upload associated files to a module.
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On Location
Southern School Desegregation 1957-1962: Interviews
This 3:28 long video features Jefferson Thomas, one of the "Little Rock Nine," narrating what it felt like to be the first black students at Little Rock's Central High School. The video shows white mobs, paratroopers patrolling the streets, and soldiers escorting black students into Central High School. Elizabeth Eckford, another of the nine pioneering students, describes the treatment she received, while footage of the crowds around her is shown. This is an exceptional video to show students ab
The Money Masters, 2/2
This is a lengthysecond episode of Part 1 of the YouTube video (01:46:21) that discusses the U.S. debt and the U.S. Banking system. There are some controversial statements in this video. This information would have be clarified by a high school economics instructor.
The Ascent of Money by Niall Ferguson, Part 1 of 2
This is the documentary by the famed professor Niall Ferguson. In this series, he discusses why money has become such a part of our lives. (Four hours and 15 minutes.)
Replication Origin and Ends - Regulation Fall 2007
General Biochemistry and Molecular Biology - Fall 2007. Molecular biology of prokaryotic and eukaryotic cells and their viruses. Mechanisms of DNA replication, transcription, translation. Structure of genes and chromosomes. Regulation of gene expression. Biochemical processes and principles in membrane structure and function, intracellular trafficking and subcellular compartmentation, cytoskeletal architecture, nucleocytoplasmic transport, signal transduction mechanisms, and cell cycle control.
SFAP 2011 – L’utilisation des opioïdes et des benzodiazépines avant l’admission en soins pal
Titre : SFAP 2011 – L’utilisation des opioïdes et des benzodiazépines selon le milieu de vie avant l’admission en soins palliatifs
Auteur(s) : F. TARDIF (coordonnateur équipe de recherche – Québec – Canada).
Etablissement : Centre de Recherche en Cancérologie
Résumé : Les patients atteints de cancer avancé expriment le souhait de prolonger le temps passé à domicile avant leur admission en unité de soins palliatifs pour la phase terminale. Cependant, il
The Central Dogma - DNA, RNA Information Flow - (DNA, mRNA, tRNA)
This is a general introduction to cell structure and function, molecular and organism genetics, animal development, form and function. Intended for biological sciences majors, but open to all qualified students.
The physics of musics: Standing waves in string instruments
Free High School Science Texts Project
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Vectors: Introduction and key concepts (Grade 11)
Free High School Science Texts Project
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Look It Up
This video segment from Between the Lions features a catchy song that celebrates an important function of literacy: access to information. It also shows the wide world of print, and all of the knowledge that can be gained from it.
Predicting Earthquakes
This video segment, adapted from QUEST, describes the extraordinary research that scientists are doing to help demystify and possibly better predict earthquakes.
Garden of Eating
Students are asked how poor weather conditions affect the cost of fruits and vegetables.
Testing Intelligence
In this video segment from Nature, scientific experiments test how ravens think.
The Grand Challenge
This lesson introduces the MRI Safety Grand Challenge question. Students are asked to write journal responses to the question and brainstorm what information they will need to answer the question. The ideas are shared with the class and recorded. Students then watch a video interview with a real life researcher to gain a professional perspective on MRI safety and brainstorm any additional ideas. The associated activity provides students the opportunity to visualize magnetic fields.
Model Greenhouses
Students learn about the advantages and disadvantages of the greenhouse effect. They construct their own miniature greenhouses and explore how their designs take advantage of heat transfer processes to create controlled environments. They record and graph measurements, comparing the greenhouse indoor and outdoor temperatures over time. Students are also introduced to global issues such as greenhouse gas emissions and their relationship to global warming.
Energy Basics
Demos and activities in this lesson are intended to illustrate the basic concepts of energy science -- work, force, energy, power etc. and the relationships among them. The "lecture" portion of the lesson includes many demonstrations to keep students engaged, yet has high expectations for the students to perform energy related calculations and convert units as required. A homework assignment and quiz are used to reinforce and assess these basic engineering science concepts.
Lunar Rotation and Flyby from Clementine Data
Clementine was a joint project between the Strategic Defense Initiative Organization and NASA. The objective of the mission was to test sensors and spacecraft components under extended exposure to the space environment and to make scientific observations of the Moon and the near-Earth asteroid 1620 Geographos. Clementine was launched on 25 January 1994 at 16:34 UTC (12:34 PM EDT) from Vandenberg AFB aboard a Titan IIG rocket. After two Earth flybys, lunar insertion was achieved on February 21. L
