Radar Jammer in Matlab
This document describes the basic operation of a police radar gun and a few of the more popular ways to jam the radar gun. The conclusions are based on Matlab simulations of the radar gun and the jamming techniques.
A Practical Laboratory for Optics Experiments
Understanding Your French Horn
For eighth grade and up, a series of lessons that can be offered by an instructor or done as a self-study course, to teach French horn players more about their instrument.
Mud feels good!
Students will listen to "Mud Walk" by Joy Cowley. Students will experience and describe mud using a bubble map to record their responses. Students will create a class book using chocolate pudding to imitate mud.
To Survive at High Velocity
This video segment adapted from NOVA looks at speed, velocity, and centripetal force on the racetrack.
Think Like Einstein
This interactive activity from the NOVA Web site challenges you to think like Einstein and understand how time travel might be possible.
In this oral history from the Birmingham Civil Rights Institute, Miriam McClendon recalls her arrest and jailing for participation in the Children's Crusade of 1963.
"A Less Reliable Form of Birth Control": Miriam Allen deFord Describes Her Introduction to Contracep
Despite major cultural, legal, and medical impediments the use of birth control, including abortion, by American women was widespread at the turn of the century. In their quest to control unwanted pregnancies, American women could be surprisingly resourceful in the methods they used. In this audio excerpt from a 1974 interview with historian Sherna Gluck, Miriam Allen deFord described methods of birth control in vogue in the 1910s, including spermicides, douches, the Dutch pessary (an early diap
"It Is Entirely the Bolshevik Spirit": Mill superintendent W. M. Mink Explains the 1919 Steel Strike
In the dramatic 1919 steel strike, 350,000 workers walked off their jobs and crippled the industry. The U.S. Senate Committee on Education and Labor set out to investigate the strike while it was still in progress. In his testimony before the committee, W. M. Mink, mill superintendent at the Homestead steelworks, testified that the cause of the strike was simple--the infection of "the Bolshevik spirit"among "the foreigners."
Volcanoes of other worlds
Volcanoes of Other Worlds explores and compares volcanism on other planets. What do we know about plate tectonics on other planets? Planetary bodies highlighted include the Earth's Moon, Mars, Venus and Jupiter's moon Io. Users can also link to Volcano World, an excellent web-source of volcano information.
This field exercise determines the susceptibility of different rocks to weathering, and, using the dates on the tombstones, estimates some weathering rates. Placing the field lab in context for use, this site describes the learning goals, teaching notes and materials, assessment recommendations, and provides links to other resources and references.
Anges Rebelles, Les
"In six minutes, a conjuring trick combining special effects and the magic of painting enables us to enter the world of Jacques Brissot. It is a visual poem that humorously recounts the building of a collage inspired from artist Peter Breugel's 'La Chute des Anges Rebelles.'" Artist Jacques Brissot is shown adding to and retouching a large-scale collage work, lending insight into his compositional choices and his techniques and methods. Music is by Michel Arich, with Barney Wilen playing saxopho
Going Away Party, The
'The Going Away Party,' by Dan Boord and Greg Durbin, is a dramatic work about corruption among Oklahoma county officials. It is based on the true stories of incidents of corruption amongst Oklahoma's elected county commissioners. This segment is from the dramatic 'reenactment,' showing friends and supporters of Burrows, a commissioner sentenced to serve a jail term, at a going-away party.
In this inquiry activity, students view NASA images of galaxies and develop a galaxy classification scheme. Students then compare and contrast their classification scheme with that developed by Edwin Hubble.
Seeing the Invisible
Students will be instructed to make an observation of a flower (tulip) given the one stipulation that they will only be allowed to detect the parts of the plant that are green. Through observation and discussion, students will be led to understand that only seeing parts of the flower leads to an incomplete and even inaccurate understanding of its structure. Students will construct their own knowledge of the Sun emitting light above and below the visible spectrum by using UV beads to detect ultr
Soil Science and Technology Home Page
This site looks at soil fertility, nitrogen in soil, soil chemistry, soils as electrical systems, soils as filters, soil physics and particle sizes (silt, sand, and clay), microorganisms in soil, nutrients that plants need, soil morphology, judging soil by feel, structures and shapes of soil, and soil profile images from Arizona, Florida, Michigan, and other states. Learn how soil is formed and how long it takes to create an inch of soil.
Trends of Snow Cover and Temperature in Alaska
The objective of this lesson is to compare NASA satellite data observations with student surface measurements of snow cover and temperature.
Infrared Astronomy Tutorial
examines infrared light, how it was discovered, infrared astronomy, atmospheric windows, and more. An infrared astronomy timeline is included, along with links to news and discoveries, images, and classroom activities.
Searching for Meteorites
Water balloons filled with flour and pebbles help students model the distribution of materials after meteorite impacts. The flour simulates the ejected crater material and the pebbles represent the meteorite fragments. Students will use the model to draw conclusions about where it would be easiest to find meteorites.
The Age of Einstein
The Age of Einstein, is a brief introduction to Einstein's Theories of Special and General Relativity. It is a book for the inquisitive general reader who wishes to gain an understanding of the key ideas put forward by the greatest scientist of the 20th-century. No more than a modest grasp of High School Mathematics is required to follow the arguments.