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Nature's billion-year-old battery key to storing energy

New research at Concordia University is bringing us one step closer to clean energy. It is possible to extend the length of time a battery-like enzyme can store energy from seconds to hours, a study published in the Journal of ...

Chemistry / Biochemistry

created Apr 18, 2012 | popularity 4.5 / 5 (17) | comments 3 | with audio podcast

Raising the prospects for quantum levitation

More than half-a-century ago, the Dutch theoretical physicist Hendrik Casimir calculated that two mirrors placed facing each other in a vacuum would attract. The mysterious force arises from the energy of virtual particles ...

Physics / General Physics

created Apr 18, 2012 | popularity 4.8 / 5 (11) | comments 1

Nanodot-based memory sets new world speed record

Record speed, low-voltage, and ultra-small size make nanodots a "triple threat" for electronic memory in computers and other electronic devices.

Technology / Semiconductors

created Apr 18, 2012 | popularity 4.3 / 5 (12) | comments 9 | with audio podcast

Magnetic nanochain detonates chemo barrage inside tumors

Medicine-toting nanochains slip into tumors and explode a chemotherapy drug into hard-to-reach cores of cancer, engineers and scientists at Case Western Reserve University report.

Nanotechnology / Bio & Medicine

created Apr 18, 2012 | popularity 5 / 5 (8) | comments 0 | with audio podcast

Particles magnetically 'click' to form superstructures

(Phys.org) -- Geomag, the popular children's toy, contains small metal spheres that can be magnetically connected with a click to build a variety of towers, bridges, and sculptures. In a new study, scientists ...

Chemistry / Materials Science

created Apr 10, 2012 | popularity 4.9 / 5 (8) | comments 1 | with audio podcast feature

Quantum dots brighten the future of lighting

(Phys.org) -- With the age of the incandescent light bulb fading rapidly, the holy grail of the lighting industry is to develop a highly efficient form of solid-state lighting that produces high quality white ...

Nanotechnology / Nanomaterials

created May 08, 2012 | popularity 4.8 / 5 (8) | comments 2 | with audio podcast

Parasite arms race spurs color change in bird eggs

The eggs laid by two African bird species have evolved different color patterns over a period of just 40 years, according to new research published in The American Naturalist. The quick change appears to be ...

Biology / Plants & Animals

created Apr 16, 2012 | popularity 5 / 5 (6) | comments 0 | with audio podcast

Were dinosaurs undergoing long-term decline before mass extinction?

Despite years of intensive research about the extinction of non-avian dinosaurs about 65.5 million years ago, a fundamental question remains: were dinosaurs already undergoing a long-term decline before an ...

Other Sciences / Archaeology & Fossils

created May 01, 2012 | popularity 3.8 / 5 (8) | comments 1 | with audio podcast

Scientists illuminate the ancient history of circumarctic peoples

Two studies led by scientists from the University of Pennsylvania and National Geographic's Genographic Project reveal new information about the migration patterns of the first humans to settle the Americas. The studies identify ...

Other Sciences / Archaeology & Fossils

created May 17, 2012 | popularity 5 / 5 (6) | comments 0 | with audio podcast

Chimpanzee ground nests offer new insight into our ancestors descent from the trees

The first study into rarely documented ground-nest building by wild chimpanzees offers new clues about the ancient transition of early hominins from sleeping in trees to sleeping on the ground. While most ...

Biology / Plants & Animals

created Apr 16, 2012 | popularity 3.4 / 5 (8) | comments 2 | with audio podcast

Quantum computing: The light at the end of the tunnel may be a single photon

Quantum physics promises faster and more powerful computers, but quantum versions of basic logic functions are still needed to bring this technology to fruition. Researchers from the University of Cambridge and Toshiba Research ...

Physics / Quantum Physics

created May 18, 2012 | popularity 4.5 / 5 (6) | comments 1 | with audio podcast

Using 'proton grease' to spin-up a molecular rotor

When designing the tiniest of possible machines, scientists have had far more success in creating molecular-size brakes than accelerators. But a team at the University of South Carolina has figured out how ...

Chemistry / Other

created Apr 12, 2012 | popularity 5 / 5 (5) | comments 1 | with audio podcast

First description of a triple DNA helix in a vacuum

A team of researchers at the Institute for Research in Biomedicine (IRB Barcelona) and the Barcelona Supercomputing Center (BSC) have managed for the first time to extract trustworthy structural information ...

Chemistry / Biochemistry

created Apr 18, 2012 | popularity 4.2 / 5 (6) | comments 0

What's in a surname? New study explores what the evolution of names reveals about China

What can surnames tell us about the culture, genetics and history of our society? That is the question being answered by Chinese researchers who have traced the evolution of surnames across China.The research, published in ...

Other Sciences / Social Sciences

created Apr 13, 2012 | popularity 4.6 / 5 (5) | comments 0 | with audio podcast

Many US police use cell phones to track: study

Many US police departments use cell phone tracking, often without court orders, to find suspects and investigate criminal cases, according to a study released Monday.

Technology / Telecom

created Apr 02, 2012 | popularity 5 / 5 (4) | comments 2

Americans

Primarily English, but also Spanish and others

Christian (Mostly Protestantism and Catholicism) No religion • Jewish • Muslim • Buddhist • Hinduism • New Religious Movements and others.

The people of the United States, also known as simply Americans or American people, are the inhabitants or citizens of the United States. The United States is a multi-ethnic nation, home to people of different ethnic and national backgrounds. As a result, Americans do not consider their nationality as an ethnicity but as a citizenship with various ethnicities comprising the "American people." Aside from the indigenous Native American population, nearly all Americans or their ancestors immigrated within the past five centuries.

Despite its multi-ethnic composition, the culture held in common by most Americans is referred to as mainstream American culture, a Western culture largely derived from the traditions of Western European migrants, beginning with the early English, Scottish, Welsh and Dutch settlers. German and Irish cultures have also been very influential. Certain cultural attributes of Igbo, Mandé, Kongo and Wolof slaves from West Africa were adopted by the American mainstream; based more on the traditions of Central African Bantu slaves, a distinct African American culture developed that would also deeply affect the mainstream. Westward expansion integrated the Creoles and Cajuns of Louisiana and the Hispanos of the Southwest and brought close contact with the culture of Mexico. Large-scale immigration in the late nineteenth and early twentieth centuries from Southern and Eastern Europe introduced many new cultural elements. More recent immigration from Asia, Africa, and especially Latin America has had broad impact. The resulting cultural mix may be described as a homogeneous melting pot, or as a pluralistic salad bowl in which immigrants and their descendants retain distinctive cultural characteristics.

In addition to the United States, Americans and people of American descent can be found internationally. As many as 4 million Americans are estimated to be living abroad.

For more information about Americans, read the full article at Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.