Päivä: 7.7.2015

ScienceTechnology

James Webb Space Telescope

In contrast to other proposed observatories, the JWST telescope is the last big NASA astrophysics mission of its generation to be built. The James Webb Space Telescope, previously known as Next Generation Space Telescope, is a space observatory under construction and scheduled to launch in October 2018. The JWST will offer unprecedented resolution and sensitivity from long-wavelength visible to the mid-infrared, and is a successor instrument to the Hubble Space Telescope and the Spitzer Space Telescope. The telescope features a segmented 6.5-meter diameter primary mirror and will be located near the Earth–Sun L2 point. A large sunshield will keep its mirror and four science instruments below 50 K. JWST’s capabilities will enable a broad range of investigations across the fields of astronomy and cosmology.

One particular goal involves observing some of the most distant objects in the Universe, beyond the reach of current ground and space based instruments. This includes the very first stars, the epoch of reionization, and the formation of the first galaxies. Another goal is understanding the formation of stars and planets. This will include imaging molecular clouds and star-forming clusters, studying the debris disks around stars, direct imaging of planets, and spectroscopic examination of planetary transits.

In gestation since 1996, the project represents an international collaboration of about 17 countries led by NASA, and with significant contributions from the European Space Agency and the Canadian Space Agency. It is named after James E. Webb, the second administrator of NASA, who played an integral role in the Apollo program.

DesignTravel

On the hunt for adventure

Climb the mountains and get their good tidings. Nature’s peace will flow into you as sunshine flows into trees. The winds will blow their own freshness into you, and the storms their energy, while cares will drop off like autumn leaves. — John Muir

The Pacific Northwest, sometimes referred to as Cascadia, is a region in western North America bounded by the Pacific Ocean to the west and, loosely, by the Rocky Mountains on the east. Though no agreed boundary exists, a common conception includes the U.S. states of Oregon and Washington and the Canadian province of British Columbia. Broader conceptions reach north into Alaska and Yukon, south into far Northern California and east into Idaho and Western Montana, western Wyoming, and western Alberta, to the Continental Divide. Narrower conceptions may be limited to the Northwestern U.S. or to the coastal areas west of the Cascade and Coast mountains. The variety of definitions can be attributed to partially overlapping commonalities of the region’s history, geography, society, and other factors.

The Northwest Coast is the coastal regions of the Pacific Northwest and the Northwest Plateau (also commonly known as ”The Interior” in British Columbia and the Inland Empire in the United States) is the inland regions. The term ”Pacific Northwest” should not be confused with the Northwest Territory (also known as the Great Northwest, a historical term in the United States) or the Northwest Territories of Canada.

The region’s largest metropolitan areas are Greater Seattle, Washington, with 3.7 million people; Greater Vancouver, British Columbia, with 2.4 million people; and Greater Portland, Oregon, with 2.3 million people.

John Muir, master explorer

John Muir, master explorer

A key aspect of the Pacific Northwest is the US–Canada international border, which the United States and the United Kingdom established at a time when the region’s inhabitants were composed mostly of Indigenous peoples. The border — in two sections, along the 49th parallel south of British Columbia and the Alaska Panhandle west of northern British Columbia — has had a powerful effect on the region. According to Canadian historian Ken Coates, the border has not merely influenced the Pacific Northwest—rather, ”the region’s history and character have been determined by the boundary”.

Definitions of the Pacific Northwest region vary and there is no commonly agreed upon boundary, even among Pacific Northwesterners. A common conception of the Pacific Northwest includes the U.S. states of Oregon and Washington as well as the Canadian province of British Columbia. This definition is often restricted further to include only the coastal areas west of the crest of the Cascade Mountains and Canadian Coast Mountains.

Travel

Traveling South America by bus

Brazil is the largest country in South America and fifth largest in the world. Famous for its football tradition and its annual Carnaval in Rio de Janeiro, Salvador, Recife and Olinda. It is a country of great diversity, from the bustling urban mosaic of São Paulo to the infinite cultural energy of Pernambuco and Bahia, the wilderness of the Amazon rainforest and world-class landmarks such as the Iguaçu Falls, there is plenty to see and to do in Brazil.

Owing to Brazil’s continental dimensions, varied geography, history and people, the country’s culture is rich and diverse. It has several regional variations, and in spite of being mostly unified by a single language, some regions are so different from each other that they look like different countries altogether.

MPB stands for Brazilian Popular Music, which mixes several national styles under a single concept. Forró, a north-eastern happy dancing music style, has also become common nationwide. New urban styles include funk – name given to a dance music genre from Rio’s favelas that mixes heavy electronic beats and often raunchy rapping – and techno-brega, a crowd-pleaser in northern states, that fuses romantic pop, dance music and caribbean rhythms.