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Can one Turing machine emulate another? Are Turing machines guaranteed to finish a task? As Tolkien said about the advice that elves provide, the answer is “both yes and no.” Essentially, the Universal Turing machine represents the ability for a “computer” to manipulate a program just as it deals with data. Review of a Standard [...]
Are processed foods safe for people with allergies? Between milk allergies and peanut allergies, commercially-processed foods can be problematic for many people, particularly kids; allergy is the fifth most common chronic disease in the United States, and the third most common in children. Also, according to the American Academy of Allergy and Immunology, the incidence [...]
A new CNN/ORC Poll released Tuesday indicates that nearly three quarters of self-identified Republicans think Mitt Romney is “Almost Certain” or “Very Likely” to become the party’s nominee for President. Overall support for Romney among Republicans has increased from 34 percent in February to 36 percent in March. Favorability has decreased over the same period [...]
Why does a plane have flaps on its wings? Commercial airline jets tend to fly at both high altitudes and at high airspeeds so as to cover a maximum distance in the shortest possible time, but require a much lower airspeed to land safely. Consequently the cruise speed of a passenger jet is higher than its climb [...]
The use of hydrogen is significant today, but tomorrow the demand could increase for a future of domestic energy use. Currently, we use hydrogen to make nitrogen fertilizers, to convert low-grade crude oils into transport fuels, and to process other chemicals. But in the future, as oil becomes more expensive, hydrogen could become the fuel [...]
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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