Archive for the ‘Travel’ Category

It doesn’t make sense to pay full price for anything these days when discounts are being offered left and right. For instance, with Six Flags Hurricane Harbor Coupons, you can purchase a season pass that will pay for itself on the second visit. Any visit made after that will simply drive the cost down further as you spread it out over several trips. With a season pass you also receive some freebies just too good to pass up. How about five discounted passes for your friends; two $25 coupons toward admission to Magic Mountain next door? Or perhaps you are interested in the combo or premium passes which allows unlimited access to both parks, and even unlimited parking. (more…)

A weekend trip with family members is what everyone is looking for in today’s fast growing world. Once you have got a chance to plan a trip with your family the fist thing is to decide a suitable location to go about with your trip. Buying cost effective camping gear, for example cool & great tents, that lasts for longer time is preferred by the most. After you have made the list of needed items for your trip, start your search online on Internet and nearby camping stores. Once you have short-listed the equipment, compare the prices offered by different suppliers and choose the one that is most affordable for you. (more…)

The basic design of the GPS unit is based partly on the similar ground-based radio navigation systems. These type systems, such as LORAN and the Decca Navigator developed in the early 1940s, and used during World War II.

All additional inspirations came when the Soviet Union launched the first Sputnik in 1957. A team of U.S. scientists were monitoring Sputnik’s radio transmissions. It was then discovered that, because of the Doppler effect, the frequency of the signal being transmitted by Sputnik was higher as the satellite approached, and lower as it continued away from them. They realized that since they knew their exact location on the globe, they could pinpoint where the satellite was along its orbit by measuring the Doppler distortion.

The first satellite navigation system was first successfully tested in 1960 by the Navy. Using a pairing of five satellites, it provided a navigational fix approximately once per hour. In 1967, the U.S. Navy developed the Timation satellite which proved the ability to place accurate clocks in space, a technology the GPS relies upon.