"Understanding Lasers and Fiberoptics, Spring 2008"
"Lasers are essential to an incredibly large number of applications. Today, they are used in bar code readers, compact discs, medicine, communications, sensors, materials processing, computer printers, data processing, 3D-imaging, spectroscopy, navigation, non-destructive testing, chemical processing, color copiers, laser "shows", and in the military. There is hardly a field untouched by the laser. But what exactly is so unique about lasers that makes them so effective? This brief video course i
Learn about Acacia Trees
Learn about Acacia Trees - Dave shows you how Acacia trees grow in Africa in this one-minute video.
Bighorn sheep running away in Lower Snake River District of Idaho
Many times, an animal's only defense is speed and running away from predators.
Bee inside flower retrieving nectar
The bee obtains nectar from the flower to make into honey. During this process, the bee is covered in pollen that will be transferred to other flowers for reproduction. Both the bee and the flower benefit from this process.
Conflict resolution: Introduction to cooperative problem solving
An introduction to the concept of and issues involved in Cooperative Problem Solving.
Household Energy Conservation and Efficiency
Students complete three different activities to evaluate the energy consumption in a household and explore potential ways to reduce that consumption. The focus is on conservation and energy efficient electrical devices and appliances. The lesson reinforces the relationship between power and energy and associated measurements and calculations required to evaluate energy consumption. The lesson provides the students with more concrete information for completing their culminating unit assignment.
Students learn about the types of possible loads, how to calculate ultimate load combinations, and investigate the different sizes for the beams (girders) and columns (piers) of simple bridge design. Students learn the steps that engineers use to design bridges: understanding the problem, determining the potential bridge loads, calculating the highest possible load, and calculating the amount of material needed to resist the loads.
You're a Pushover!
The purpose of this activity is to demonstrate Newton's 3rd Law of Motion, which is the physical law that governs thrust in aircraft. The students will do several activities that show that for every action there is an equal and opposite reaction.
2.6 Mind mapping
The power of graphics should not the underestimated. They can express information clearly and simply. This unit will help you to assess which style of graphic to use in different situations.
This site serves as a portal to American Indian/Alaska Native health and other informational resources. Topics of interest include education, training, government, health news, grants, projects, funding, and eHealth information.
Students learn a simple technique for quantifying the amount of photosynthesis that occurs in a given period of time, using a common water plant (Elodea). They can use this technique to compare the amounts of photosynthesis that occur under conditions of low and high light levels. Before they begin the experiment, however, students must come up with a well-worded hypothesis to be tested. After running the experiment, students pool their data to get a large sample size, determine the measures of
Life without legs: How organisms move
We often think of legs when we think of animal movement. Of course, many organisms, from insects to mammals, move by way of legs. However, many organisms create movement in other ways.
Sustainable Tourism Certification
A lecture on sustainable tourism
NASA's Discovery Launch Dress Rehearsal
The Discovery astronauts train at Kennedy for the upcoming STS-124 mission. For more information see: http://www.nasa.gov
Snow Cover over North America during the Winter of 2001-2002 (WMS)
The amount of snow covering the land has both short and long term effects on the environment. From season to season, snow coverage and depth affect soil moisture and water availability, which directly influence agriculture, wildfire occurrences, and drought. In the long term, the part of the Earths surface covered by snow reflects up to 80 or 90 percent of the incoming solar radiation as opposed to the 10 or 20 percent that uncovered land reflects, and this has important consequences for the Ear
Lees- en schrijfoefening: The sobering truth
Cursisten leren provocerend taalgebruik te herkennen als een manier om een gesprekspartner te overreden en het zelf te hanteren in een specifieke context
De hoofdgedachten in drie teksten over alternatieve levensstijlen met elkaar vergelijken.
Practice tests for postgraduate medical training
This module is based on a book produced by the Ecuadorian Association of Medical Faculties. Materials are reproduced with permisson. These are practice tests intended for Ecuadorian postgraduate medical training. The module will cover topics like: anatomy, anesthesiology, biochemestry, general surgery, embryology, epidemiology, pharmacology, physiology, genetics, gynecology & obstetrics, histology, internal medicine, medical statistics, microbiology, parasitology, pathology, pediatrics, psychiat
Traditional Chinese Paper
This 1:48 video shows how one Chinese town still makes paper the traditional way. The students will learn how the bamboo is harvested, turned into pulp, and made into paper.
HHV-6 Glycoprotein Complex Formation is Required for the Folding and Trafficking of the Complex - Y.
HHV-6 Glycoprotein Complex Formation is Required for the Folding and Trafficking of the Complex, gH/gL/gQ1/gQ2 and its Cellular Receptor Binding; gQ1 - Y.Mori