A local coal mine grows by 11 acres per year. How many square meters per day is this? As a crude model for lightning, consider the ground to be one plate of a parallel-plate capacitor and the cloud to be the other plate. The altitude of the cl...
This type of parachute is square or rectangular and is made completely out of lightweight nylon. There is a top and bottom sheet of nylon, and then a set of fabric ribs between them. The ribs divide the parachute into a set of individual cells. Air enters, or rams, into the front of...
They’re the focus of the immigration debate. But across the nation, Latinos are rising to power and offering a glimpse of what’s ahead.
Many cruises to Norway depart fromLondonand visit several charming Norwegian ports, such asStavangerandBergen. The "new Alaska" for cruising is Patagonia, which is considerably wilder and less developed than its U.S. and European counterparts.Royal Olympicoffers a 14-day cruise that sails fromPuer...
Cruising in Alaska was pioneered by Princess and Holland America and these lines still know it and do it best. In the past five years or so, they've been joined by so many ships from other lines that the streets of small Alaskan towns like Juneau are swarming with cruise passengers. So...
Many shield volcanoes erupt with great frequency (every few years or so). Eruption Frequency The caldera at Kaguyak Volcano, in Alaska, is about 1.5 miles (2.5 km) in diameter. Photo courtesy USGS Volcanic activity can also produce other interesting structures, such as calderas and lava ...
Many shield volcanoes erupt with great frequency (every few years or so). Eruption Frequency The caldera at Kaguyak Volcano, in Alaska, is about 1.5 miles (2.5 km) in diameter. Photo courtesy USGS Volcanic activity can also produce other interesting structures, such as calderas and lava ...
It’s bigger than every country in Europe apart from Russia, and every state in the USA except Alaska. It’s a dry country with no natural lakes, so the water area – dams and rivers – is only 4,620 square kilometres, just 0.38% of its total surface area. (India, by contrast, ...
Alaska Airlines Mileage Plan miles offers great redemption rates and many transfer partners. World of Hyatt points offers reasonable redemption rates with all hotels using a standard award chart. Credit cards, airlines, and hotels don’t publish points and miles valuations, so there are no official...
Many shield volcanoes erupt with great frequency (every few years or so). Eruption Frequency The caldera at Kaguyak Volcano, in Alaska, is about 1.5 miles (2.5 km) in diameter. Photo courtesy USGS Volcanic activity can also produce other interesting structures, such as calderas and lava ...