News tagged with space
When the space shuttle Atlantis touched down in the summer of 2011 at Cape Canaveral, closing the book on the U.S. shuttle program, a team of U.S. Army researchers stood at the ready, eager to get their gloved hands on a ...
Immunology Apr 22, 2013 | not rated yet | 0
(AP)—After years of striving to set a national agenda for curbing smoking, New York City may set a new bar. Officials are proposing to make it the most populous place in America to raise the minimum age ...
Health Apr 22, 2013 | not rated yet | 0
The sensation of having a physical body is not as self-evident as one might think. Almost everyone who has had an arm or leg amputated experiences a phantom limb: a vivid sensation that the missing limb is still present. ...
Neuroscience Apr 11, 2013 | 5 / 5 (3) | 2 |
Two studies funded by NASA and presented at the AACR Annual Meeting 2013 help explain why space radiation may increase the risk of colorectal cancer in humans.
Cancer Apr 09, 2013 | not rated yet | 0
We say that time flies, it marches on, it flows like a river—our descriptions of time are closely linked to our experiences of moving through space. Now, new research suggests that the illusions that influence how we perceive ...
Psychology & Psychiatry Mar 13, 2013 | not rated yet | 0 |
(Medical Xpress)—Serious errors administering drugs to children are occurring frequently due to workload, distraction and ineffective communication, according to a new study exploring the relationship between the nursing ...
Pediatrics Jan 18, 2013 | not rated yet | 0
Clinical pharmacologist Jens Titze, M.D., knew he had a one-of-a-kind scientific opportunity: the Russians were going to simulate a flight to Mars, and he was invited to study the participating cosmonauts.
Medical research Jan 08, 2013 | 5 / 5 (5) | 1 |
(HealthDay)—About one in four U.S. doctors uses social media daily to scan or explore medical information, according to a new study.
Health Jan 02, 2013 | 3.5 / 5 (2) | 0
Space research has developed a new way of measuring the pressure inside your skull using simple sound waves from headphones. The device is an effective early-warning system for patients recovering from head ...
Medical research Dec 20, 2012 | 4.5 / 5 (2) | 0
Holiday presents will soon be under the tree for millions of adolescents. With those gifts may come sibling squabbles over violations of personal space, such as unwanted borrowing of a fashionable clothing item, or arguments ...
Psychology & Psychiatry Dec 20, 2012 | 5 / 5 (1) | 0 |
(Medical Xpress)—A new study out of Washington University in St. Louis is one of the first to use technology to effectively measure the use of built environments—parks, greenways, trails and other man-made ...
Health Dec 18, 2012 | not rated yet | 0
Nearly 29 million Americans who say they don't smoke in their apartments may still be exposed to secondhand smoke that wafts in from elsewhere in the building, federal researchers report Friday.
Health Dec 17, 2012 | 5 / 5 (1) | 0
France's efforts to stub out smoking have been a complete failure, a spending watchdog said Thursday in a damning report that warned only sustained price hikes will curb the country's love affair with Gauloises and Gitanes.
Health Dec 13, 2012 | not rated yet | 0
A UC Irvine researcher is part of a NASA effort to understand more about bone density loss during astronauts' lengthy stays aboard the International Space Station.
Diseases, Conditions, Syndromes Dec 10, 2012 | not rated yet | 0
A new survey shows that about one in four physicians uses social media daily or multiple times a day to scan or explore medical information, and 14 percent use social media each day to contribute new information, according ...
Health Dec 10, 2012 | not rated yet | 0
Space is the boundless, three-dimensional extent in which objects and events occur and have relative position and direction. Physical space is often conceived in three linear dimensions, although modern physicists usually consider it, with time, to be part of the boundless four-dimensional continuum known as spacetime. In mathematics spaces with different numbers of dimensions and with different underlying structures can be examined. The concept of space is considered to be of fundamental importance to an understanding of the universe although disagreement continues between philosophers over whether it is itself an entity, a relationship between entities, or part of a conceptual framework.
Many of the philosophical questions arose in the 17th century, during the early development of classical mechanics. In Isaac Newton's view, space was absolute - in the sense that it existed permanently and independently of whether there were any matter in the space. Other natural philosophers, notably Gottfried Leibniz, thought instead that space was a collection of relations between objects, given by their distance and direction from one another. In the 18th century, Immanuel Kant described space and time as elements of a systematic framework which humans use to structure their experience.
In the 19th and 20th centuries mathematicians began to examine non-Euclidean geometries, in which space can be said to be curved, rather than flat. According to Albert Einstein's theory of general relativity, space around gravitational fields deviates from Euclidean space. Experimental tests of general relativity have confirmed that non-Euclidean space provides a better model for explaining the existing laws of mechanics and optics.
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