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The Origins of Electricity, Tesla vs. Edison

The Origins of Electricity, Tesla vs. Edison
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The Flipped Classroom Model: A Full Picture Due to Khan Academy’s popularity, the idea of the flipped classroom has gained press and credibility within education circles. Briefly, the Flipped Classroom as described by Jonathan Martin is: Flip your instruction so that students watch and listen to your lectures… for homework, and then use your precious class-time for what previously, often, was done in homework: tackling difficult problems, working in groups, researching, collaborating, crafting and creating. Classrooms become laboratories or studios, and yet content delivery is preserved. Flip your instruction so that students watch and listen to your lectures… for homework, and then use your precious class-time for what previously, often, was done in homework: tackling difficult problems, working in groups, researching, collaborating, crafting and creating.

2012 March 12 - The Scale of the Universe Interactive Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. 2012 March 12 The Scale of the Universe - Interactive Flash Animation Credit & Copyright: Cary & Michael Huang Explanation: What does the universe look like on small scales?

Is College Really Worth It? Is going to college really worth it? Probably so, but it's not that clear cut, and economics have been arguing the point for 30 years. Most studies tend to show that college-educated people end up making far more money in the course of their lifetimes. Ancient People Are Still Awesome: Centuries-Old Japanese Tsunami Warning Markers Saved Lives "High dwellings are the peace and harmony of our descendants," reads the centuries-old stone tablet above. "Remember the calamity of the great tsunamis. Do not build any homes below this point." This marker, and several more like it, some more than 600 years old, "dot the coastline" of Japan, according to a report in The Canadian Press. Not all of them were quite as specific: Some acted more as general warnings, lasting reminders of a risk that might only recur every fourth or fifth generation. One, in the coastal town of Kesennuma, gave instructions: "Always be prepared for unexpected tsunamis.

Wind Map An invisible, ancient source of energy surrounds us—energy that powered the first explorations of the world, and that may be a key to the future. This map shows you the delicate tracery of wind flowing over the US. The wind map is a personal art project, not associated with any company. We've done our best to make this as accurate as possible, but can't make any guarantees about the correctness of the data or our software. Please do not use the map or its data to fly a plane, sail a boat, or fight wildfires :-)

experiment and have fun! That's it, you're done! Grab your magnet and start experimenting with your new magnetic putty. You can stretch out a strand and make it follow your magnet, you can polarize your putty to work as a magnet itself, and then there's the classic of placing the magnet directly on the putty and watching it envelop the magnet. There's plenty of fun to be had, check out the video I made with some of the fun you can do. Some frames have been sped-up to illustrate magnetic properties. China vs United States As we discussed in yesterday’s post, whether the United States and China like it or not, the economic futures of both countries are intertwined. Everyone knows that China’s got more people and that its importance as an economic superpower has escalated in recent years. What you might not understand is how the differences between our countries, in economic philosophy, in population, in geography and in how the military is built and paid for ultimately play into the entire economic relationship. For many China remains something of a mystery.

50 Most Influential Books of the Last 50 (or so) Years In compiling the books on this list, the editors at SuperScholar have tried to provide a window into the culture of the last 50 years. Ideally, if you read every book on this list, you will know how we got to where we are today. Not all the books on this list are “great.” The criterion for inclusion was not greatness but INFLUENCE.

Glowing Kittens Fight Feline AIDS Scientists have genetically modified cats by infecting their eggs with a virus containing a foreign gene—the first time this method has worked in a carnivore. Experts say the advance could make the cat a valuable new genetic model—and potentially protect it from an HIV-like virus. There are two AIDS epidemics in the world: one in humans, the other in cats. Whereas we can become infected with the human immunodeficiency virus (HIV), cats fall victim to the feline immunodeficiency virus (FIV), which causes nearly identical symptoms.

True Colors Infographic - Breakdown of Color Preferences by Gender From the day that babies are brought home and cradled in their pink or blue blankets, implications have been made about gender and color. While there are no concrete rules about what colors are exclusively feminine or masculine, there have been studies conducted over the past seven decades that draw some generalizations. Let’s take a look at what they say about color and gender. Click on the graphic below for an enlarged view: handwriting tips You’ve decided you want to improve your handwriting and you’re probably hoping a fountain pen will do the trick -- maybe a friend told you it would. Maybe you’re just adventurous and you want to try your hand at calligraphy (or you might, once your handwriting improves). Good for you! A fountain pen may make your writing look a bit better, but if your writing looks as if frenzied chickens got loose on the page, chances are this won’t be enough. Most likely, you’ll need to retrain your arm and hand. After coaching handwriting and teaching calligraphy over the years, I’ve learned to see the characteristics of those who’ll be able to pick up the necessary motions quickly from those who’ll have to work a bit harder.