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Gel electrophoresis is an experimental procedure that uses an electric current to separate mixed proteins or nucleic acids based on their differing sizes, charges or structures. The procedure is used extensively in laboratory research in disciplines concerned with detecting DNA or analyzing microscopic particles, such as genetics, biochemistry, immunology and molecular biology. Gel electrophoresis is also [...]
Neodymium magnets are powerful enough to demonstrate the subtle effects of diamagnetism, the weak repulsion that magnets can exert on some substances. What is Diamagnetic Repulsion? Magnetism is an attractive force that sticks a fridge magnet onto a refrigerator. However, “like” magnetic poles repel; the “North” ends of two magnets push each other apart. These [...]
Anyone who washes a cup after coffee dried in it has seen a “coffee ring”. Is the ring caused by the cup’s convex bottom? Several experiments get to the bottom of this phenomenon. Introducing the Coffee Ring Home Lab Experiment This is a simple lab experiment, both safe and interesting for anyone. More accurately, it [...]
The Leidenfrost Effect is also known as “film boiling.” This one effect makes water dance on a frying pan, flow uphill, and protects a sausage from burning in hot lead! Public Safety Message for Testing the Leidenfrost Effect The Leidenfrost Effect deals with steam and heat. These experiments involve hot objects. Carelessness can lead to [...]
What’s Non-Newtonian Fluid? Imagine a similar concept to quicksand…. It’s liquid, yet also solid due to suspended particles. In other words, it’s goo. Viscosity of fluids Sir Isaac Newton stated that viscosity, or how resistant a fluid is to flow, depends on the amount of heat applied. A non-Newtonian fluid, such as quicksand, or the [...]
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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