Break down light into spectra. Scholars learn how atoms emit and absorb photons and come to understand how this process allows scientists to identify different atoms based on either absorption lines or emission lines. Learners then...

Every successful climb of Mount Everest can be attributed to the assistance of the local Sherpas. A short, informative article explains the history behind the Sherpa's involvement in Mount Everest expeditions, the physiological reasons...

The heroine of the movie is leaning over a ticking bomb. Under the bright white lights of the mayor's office, the timer is racing down to zero and she has only one chance to defuse it. As she opens the cover from the control panel, a...

From the magazine, Teaching Exceptional Children, Sept/Oct 2003 issue, this article explains two different strategies for helping students with word recognition through blending and analogizing.

What is jade? The English term "jade" is used to translate the Chinese word yu, refers to a number of minerals including nephrite, jadeite, serpentine and bowenite, while jade refers only to nephrite and jadeite. Chemically nephrite is a...

Ideas taken from the book "Drawing on the Right Side of the Brain" are outlined here. This article discusses seven concepts that students need to be able to do to master the art of drawing.

Ideas taken from the book "Drawing on the Right Side of the Brain" are outlined here. This article discusses seven concepts that students need to be able to do to master the art of drawing.

This article explains the Photo-Secession movement which sought recognition for photography as an art form. There are more than sixty identified photographs by a number of members of the Photo-Secession movement, with links to more...

There are so many different types of LEDs on the market (even of the same size and color), how do you tell the difference between them and which one you should use for your particular application? The simple tests descibed here compare...

This biography of Arab musician and composer Farid al-Atrash discusses both his personal and musical lives and argues for his recognition as one of the most important contemporary Arab musicians.

How was this jacket used? The military camp jacket (jinbaori) was worn over a suit of "modern equipment" or tosei gusoku armor. Though some jackets had sleeves, many were sleeveless vests like this one. The camp jacket offered protection...

Overview of the Knights of Labor with maps showing the expansion of the Knights by color-coded time period, the number of local assemblies in each LA county, and more.

A silversmith by trade, Revere also produced copperplate engravings for book and magazine illustrations, portraits and political drawings that supported the nascent Patriot movement. Reveres most effective piece of anti-British...