News tagged with distance
In metallic glasses, researchers find a few new atomic structures
Drawing on powerful computational tools and a state-of-the-art scanning transmission electron microscope, a team of University of Wisconsin-Madison and Iowa State University materials science and engineering researchers has ...
May 11, 2012 |
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Artificial light-harvesting method achieves 100% energy transfer efficiency
(PhysOrg.com) -- In an attempt to mimic the photosynthetic systems found in plants and some bacteria, scientists have taken a step toward developing an artificial light-harvesting system (LHS) that meets one ...
Sep 01, 2011 |
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The annihilating effects of space travel
Long distance space travel could create the ultimate 'killer entrance', devastating your destination and anything around the arriving spacecraft, according to calculations by Professor Geraint Lewis and two ...
Mar 12, 2012 |
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Mathematician credited with solving one of combinatorial geometry's most challenging problems
(PhysOrg.com) -- A mathematician in the Indiana University College of Arts and Sciences is being credited with resolving a 65-year-old problem in combinatorial geometry that sought to determine the minimum number of distinct ...
Feb 25, 2011 |
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Early humans won at running; Neandertals won at walking
(PhysOrg.com) -- New research has compared the performance of the heels of modern-day distance runners to the heels of Neandertals and ancient Homo sapiens. The results show the Neandertals' heels were taller ...
Other Sciences / Archaeology & Fossils
Feb 07, 2011 |
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Increasing predator-friendly land can help farmers reduce costs
Having natural habitat in farming areas that supports ladybugs could help increase their abundance in crops where they control pests and help farmers reduce their costs, says a Michigan State University study.
May 11, 2012 |
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Evolution may explain 'Runner's high,' study says
(HealthDay) -- The pleasurable feeling known as "runner's high" that's triggered by aerobic exercise may have played a role in the evolution of humans' ability to run long distances, a new study suggests.
May 09, 2012 |
3 / 5 (2) |
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'Amplified' nanotubes may power the future
Rice University scientists have achieved a pivotal breakthrough in the development of a cable that will make an efficient electric grid of the future possible.
Nanotechnology / Nanomaterials
Jul 14, 2011 |
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Electric-powered van to make trans-Africa trip
An electric-powered van launched a trip Thursday to cross eastern and southern Africa, in an expedition designed to showcase the endurance of the vehicles and promote green energy use.
Technology / Energy & Green Tech
May 10, 2012 |
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A photon’s point of view
From a photon’s point of view, it is emitted and then instantaneously reabsorbed. This is true for a photon emitted in the core of the Sun, which might be reabsorbed after crossing a fraction of a millimetre’s ...
Space & Earth / Space Exploration
Aug 08, 2011 |
3.9 / 5 (39) |
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Viking 'sunstone' more than a myth
Ancient tales of Norse mariners using mysterious sunstones to navigate the ocean when clouds obscured the Sun and stars are more than just legend, according to a study published Wednesday.
Other Sciences / Archaeology & Fossils
Nov 02, 2011 |
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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
Apr 13, 2012 |
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Researchers change the color and shape of a single photon
(PhysOrg.com) -- A team of researchers from the CNST and ITL has simultaneously changed the color and shape of a single photon, the smallest unit of light.
Oct 06, 2011 |
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Pesticide additives cause drifting droplets, but can be controlled
(PhysOrg.com) -- Chemical additives that help agricultural pesticides adhere to their targets during spraying can lead to formation of smaller "satellite" droplets that cause those pesticides to drift into ...
Mar 20, 2012 |
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Flapping micro air vehicles inspired by swifts
Scientists have designed a micro aircraft that will be able to flap, glide and hover like a bird.
Jul 02, 2011 |
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Distance
Distance (or farness) is a numerical description of how far apart objects are. In physics or everyday discussion, distance may refer to a physical length, or an estimation based on other criteria (e.g. "two counties over"). In mathematics, a distance function or metric is a generalization of the concept of physical distance. A metric is a function that behaves according to a specific set of rules, and provides a concrete way of describing what it means for elements of some space to be "close to" or "far away from" each other.
In most cases, "distance from A to B" is interchangeable with "distance between B and A".
For more information about Distance, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
