How does the information glut work for and against us? Why do some beliefs, political movements, conspiracy theories, religions, and internet memes spread easily while others disappear? The class will...
You cannot hide! Learn about the many different artificial satellites and their sensors orbiting the Earth. We will review the properties of low earth, highly elliptical, transfer and geostationary orbits. We will review each type of satellite and their sensors. Each satellite/sensor is designed to work with a given orbit and suited for different tasks...
The Wright Brothers, the Spirit of St. Louis, Amelia Earhart, and the supersonic Glamorous Glennis Bell X-1 are all just part of this class that explores the wonders of aviation exhibits of the National Air & Space Museum. Don Baier, a docent at the museum in Washington DC for more than 34 years, takes us...
Hoover Dam and Glen Canyon Dam were constructed to control water flow down the Colorado River, produce hydroelectric power and provide recreational opportunities. We will review the history of the dams and look at the current status of the lakes. The drought of recent years has seriously diminished the water levels in the lakes, affecting...
Snails or Gastropods are the largest class of mollusks, both by diversity and sheer numbers. They are one of the oldest lifeforms on earth and they are found globally, and inhabit all the oceans, many streams and lakes, as well as land. Many have beautiful shells. Some are used in medicine, makeup, or jewelry. Most...
After completing the Beginning Zentangle course, then this may be the course you want to learn more tangles. We will continue to use the structured, eight-step method to create tangles for borders, grid patterns, and more organic tangles. All supplies are provided for class, as well as be available for purchase if you desire. Ages...