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"Vikings may have navigated by looking through a type of crystal called Icelandic spar, a new study suggests. In some Icelandic sagas-embellished stories of Viking life-sailors relied on so-called sunstones to locate the sun's position and steer their ships on cloudy days."

An Obsession With Nav Data - How Capt. Jepp Transformed the Airways Elrey Borge Jeppesen, aka Capt. Jepp, the father of air navigation. Jeppesen - as in Jepp chart and Jepp plate - was the first to develop en route aviation navigation charts and approach and departure procedures, and he developed much of the basic symbology found in aviation charts around the world today.

"The Magdeburg Water Bridge is a navigable aqueduct in Germany that connects the Elbe-Havel Canal to the Mittelland Canal, and allows ships to cross over the Elbe River. At 918 meters, it is the longest navigable aqueduct in the world. "

"GPS has been the biggest game changer. Before GPS with few navaids available you really had to know the country to navigate to a village in low visibility. Many of the villages out on the tundra are really hard to find even in CAVU. Now you just follow the line right to the runway and the things will even tell you where the terrain is. When I started my first flying job (before GPS) I was warned by my boss that all my passengers had more hours flying in that area and would know the country better than I did. He told me about the "Eskimo ADF" which means you watch your passengers and when all their heads turn at once you probably just flew past their village."

great circle navigation - how to compute courses, headings and other quantities of interest. These formulae can be programmed into your calculator or spreadsheet - includes enough information that those familiar with plane trigonometry can derive additional results if required.

"**Programming fundamentals and logic lessons for kids!** The fuzz family crash landed on Smeeborg and they need your help navigating the Technomazes! Use drag and drop commands to direct your fuzz through the colorful lighted maze. Don't get lost, or your fuzz might not be too happy!"

"Exercises Virtual Bear and Winged Warrior use high tech tools to help Canadian Forces navigate joint operations."

"For decades, pioneer aviator Amelia Earhart was said to have "disappeared" over the Pacific on her quest to circle the globe along a 29,000-mile equatorial route. Now, new information gives a clearer picture of what happened 75 years ago to Ms. Earhart and her navigator Fred Noonan, where they came down and how they likely survived - for a while, at least - as castaways on a remote island, catching rainwater and eating fish, shellfish, and turtles to survive."

$35,000 in prizes and challenging software developers to help more than 15 million researchers, medical professionals, librarians and students navigate scientific content, improve scientific search and discovery, visualize sophisticated data in more insightful and attractive ways and stimulate collaboration.

"The Postal Service solved the problem with the world's first ground-based civilian navigation system: a series of lit beacons that would extend from New York to San Francisco. Every ten miles, pilots would pass a bright yellow concrete arrow. Each arrow would be surmounted by a 51-foot steel tower and lit by a million-candlepower rotating beacon. (A generator shed at the tail of each arrow powered the beacon.) Now mail could get from the Atlantic to the Pacific not in a matter of weeks, but in just 30 hours or so."

"Cognitive scientists from the University of Rochester have discovered that playing action video games trains people to make the right decisions faster. The researchers found that video game players develop a heightened sensitivity to what is going on around them, and this benefit doesn't just make them better at playing video games, but improves a wide variety of general skills that can help with everyday activities like multitasking, driving, reading small print, keeping track of friends in a crowd, and navigating around town."

"life provides an overstuffed cornucopia of educational opportunities that don't necessarily require hefty loans and navigating different professorial strategies. Those with a lust for learning who happen to also enjoy testing the limits of what the iPad offers definitely don't have to worry about finding resources to pique their fancy. Hundreds, if not thousands, of apps are out there just twitching for users to fire them up and absorb a mental nugget or two."

technical manual to introduce basic pilot skills and knowledge thatare essential for piloting airplanes. operation ofvarious airplane systems.  realm of flight and information and guidance in the performance of procedures and maneuversrequired for pilot certification. Topics such as navigation and communication, meteorology, use of flight informationpublications, regulations, and aeronautical decision making

"surveillance drone. The nano air vehicles (NAVs), modeled after falling Maple leaf seeds, are designed to be super light weight and agile for vertical lift off, hovering, and navigation in tight spaces. "

" The BioDigital Human is an HTML5 bases platform for medicine and healthcare. Using 3-D, Web-GL visualization the BioDigital Human serves as an interactive tool for medical students to access complex human anatomy in a simple web browser. The surgical and disease-state animations embedded into the interface provide an interactive visual-aid for medical device and pharmaceutical sales reps to explain medical concepts to healthcare practitioners. As anatomical landmarks are paired with embedded education, instructive and training information, the BioDigital Human is the most intuitive way for data groups to organize and navigate medical information. "

"This course introduces the various aspects of present and future Air Traffic Control systems. Among the topics in the present system that we will discuss are the systems-analysis approach to problems of capacity and safety, surveillance, including the National Airspace System and Automated Terminal Radar Systems, navigation subsystem technology, aircraft guidance and control, communications, collision avoidance systems and sequencing and spacing in terminal areas. "

"Using the free map quiz game Seterra, you can learn the geography of Europe, the locations of the US states and state capitals, the provinces of China, countries, flags and capitals of Africa, South America and Asia, mountains, volcanoes and much more."

Amelia Earhart - first women to fly across the Atlantic and the Pacific, participated in the first Women's Air Derby, founder of the Ninety-Nines. During an attempted around-the-world flight at the Equator, vanished near Howland Island in the Pacific Ocean in 1937

Outbursts observed on the sun last week do not portend new problems for GPS reception or other systems as solar flares and eruptive events known as coronal mass ejections fire up during an increasingly active phase,

"Welcome to Student Made Math Movies!"