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Astronomers call any star that changes or varies in some way, usually brightness, a variable star. Stars can vary because of something intrinsic to the star itself or because of something extrinsic to the star, such as another nearby star. Here are a few of the major types of variable stars. Eclipsing Binary Systems Eclipsing [...]
Cloud computing is a fancy way of referring to the storage of information online, or on a network, rather than on your local hard drive. You can keep everything from software to documents and pictures in the cloud, but there are a few risks in addition to the benefits of using online storage. Benefits of [...]
Sodium is a soft, light, silvery metallic chemical element. It is extremely reactive and is never found naturally as pure sodium, thus, it combines with other elements. Sodium changes color at high pressures. At a glance, and in Mendeleev’s Periodic Law of Elements, sodium belongs to category alkali metal, it has the symbol Na, and [...]
Autism is a disorder that typically appears in very young children, affecting their ability to interact socially, communicate effectively and enjoy imaginative play. A 2008 Temple University study demonstrated that Sensory Integration Therapy, in which the therapist responds to sounds, movements or other behavioral cues from the child, is an effective teaching tool for children [...]
Rediscovering Richard III of England: In September 2012, archaeologists unearthed remains from a Leicester car park, covering what was once the city’s medieval Franciscan friary. After five months of waiting and exhaustive scientific tests, those bones were revealed to be those of Richard III, the infamous last Plantagenet king of England and the last English King to die in battle.
Use Social Science to Improve Your Health: Social science research has uncovered many helpful tips on improving our health. Find proven methods to lose weight, become fit, quit smoking, manage drinking, improve mental health, reach goals and promote positive relationships with the help of modern social science and social media. Written by Gina Barrett Putt, M.A. in Sociology, this ebook features current research and take away points.
Flying is Fun! is based on the aviation articles which Helen Krasner wrote for the magazine Flight Training News during the years 2011 to 2012. It begins with an article from Helen’s early days of learning to fly, My Learning-to-Fly Nightmare, which should provide encouragement for anyone who is struggling with the PPL course. The next three articles are about topics of general interest to private pilots. Then come a group of helicopter related articles, but these should still provide food for…
Have you ever considered converting your WordPress Blog into a Multi-Author Website? It’s not as hard as you think. In fact, with this tutorial, you’ll be done in just one weekend! (Or much less, if you are comfortable with the WordPress interface.) This edition includes a simple checklist and easy-to-follow walkthroughs for all plugins. You’ll be managing multiple writers in no time flat!
The Hunter and the Scorpion: In an endless cosmic chase the scorpion pursues the hunter, his intended victim, as they run across the sky. The Hunter and the Scorpion begins with the mythological lore behind two prominent easy to locate constellations: Orion, the Hunter, and Scorpius, the Scorpion. The Hunter and the Scorpion however encompasses much more than a constellation guidebook. Integrating ancient mythology, constellation lore, and modern astrophysics it tells the life story of stars an…
Unsung Heroes of Modern Physics Of course you’ve heard of Albert Einstein, creator of special and general relativity, and other famous scientists – but there are many other physics pioneers who have received very little mainstream recognition for their contributions to history. Join Ira Mark Egdall, as he explores the fascinating history of five Unsung Heroes of Modern Physics. Despite extraordinary achievements in relativity, quantum mechanics, astronomy, cosmology, or space exploratio…
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