The sextant, invented in the 18th century by British mathematical instrument makers, became the most essential instrument for celestial navigation. Jesse Ramsden, who made this sextant, also devised a machine to divide the scale on the sextant very precisely. Courtesy of the Air and Space Museum
In honor of its exhibit opening April 12, the Air and Space museum hosted journalists and social media friends for a behind-the-scenes tour of the exhibit. From early navigation at sea and skies and to outer-space and back again, the exhibit spans hundreds of years of technological change.
Papua New Guinea is one of the last frontiers of adventure travel, providing an unparalleled array of natural beauty, exotic wildlife and cultural tradition. Located 100 miles north of Australia, PNG is the second largest island in the world – slightly larger than the state of California. With over eight hundred known languages and a population of seven million, travelers can immerse themselves in a vibrant collection of cultural possibilities.
Papua New Guinea offers a range of vacation activities from hiking remote jungle trails, cruising the mighty Sepik river, surfing the waves of New Ireland, fishing some 8,000 miles of coastline and experiencing some of the world’s best scuba diving amongst coral reefs, wrecks, walls and caves.
Travel to Papua New Guinea is best with a PNG Specialist Tour Company. Browse our custom travel packages and our dive packages to start your journey today!
Specifically those in the Archosauromorpha Infraclass. <br><br> Original release date: January 17, 2008 <br><br> <b>This design from the BustedTees Archive will be custom printed just for you and therefore cannot be returned or exchanged. It will also ship separately from other BustedTees products. <br><br>
Customers who evolve before the Triassic get a free pair of wings (followed by extinction). <br><br> Original release date: September 12, 2011 <br><br> <b>This design from the BustedTees Archive will be custom printed just for you and therefore cannot be returned or exchanged. It will also ship separately from other BustedTees products.