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Topic: 3-sphere


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In the News (Fri 11 Dec 09)

  
 Sphere - Wikipedia, the free encyclopedia
The circumscribed cylinder for a given sphere has a volume which is 3/2 times the volume of the sphere, and also a surface area which is 3/2 times the surface area of the sphere.
For this reason, the sphere appears in nature: for instance bubbles and small water drops are roughly spherical, because the surface tension minimizes surface area.
The sphere has the smallest surface area among all surfaces enclosing a given volume and it encloses the largest volume among all closed surfaces with a given surface area.
en.wikipedia.org /wiki/Sphere   (1073 words)

  
 PlanetMath: sphere
This is version 13 of sphere, born on 2001-10-15, modified 2005-12-18.
A sphere is defined as the locus of the points in three dimensions that are equidistant from a particular point (the center).
refers to the sphere's “intrinsic” dimension as a manifold, not the dimension to whatever space in which it happens to be immersed.
planetmath.org /encyclopedia/Sphere.html   (339 words)

  
 Bernal sphere - Wikipedia, the free encyclopedia
Sunlight was to be provided to the interior of the sphere using external mirrors to direct it in through large windows near the poles.
The form of a sphere was chosen for its optimum ability to contain air pressure and its optimum mass-efficiency at providing radiation shielding.
A Bernal sphere is a type of space habitat intended as a long-term home for permanent residents, first proposed in 1929 by Dr. John Desmond Bernal.
en.wikipedia.org /wiki/Bernal_sphere   (272 words)

  
 Celestial sphere Info - Encyclopedia WikiWhat.com
In astronomy and navigation, the celestial sphere is an imaginary rotating sphere of "gigantic radius", concentric with the Earth.
As the earth rotates from west to east, the celestial sphere appears to rotate from east to west.
Many ancient societies believed that the stars were equidistant from the Earth and that this sphere was a real model of the universe.
wikiwhat.com /encyclopedia/c/ce/celestial_sphere.html   (395 words)

  
 sphere on Encyclopedia.com
SPHERE [sphere] in geometry, the three-dimensional analogue of a circle.
Fritz Koenig sculpture "The Sphere" which originally sat in the World Trade Center is rededicated as a memorial for those lost in the attack.
Pictured, the gold sphere in the lobby of the Venetian.
encyclopedia.infonautics.com /html/s1/sphere.asp   (971 words)

  
 Celestial Sphere
The poles of the celestial sphere are aligned with the poles of the Earth.
The celestial sphere is an imaginary sphere of gigantic radius with the earth located at its center.
The celestial sphere is a large sphere surrounding the earth and with it we can keep references to where celestial bodies lie in the sky.
astrosun.tn.cornell.edu /academics/courses/astro201/cel_sphere.htm   (416 words)

  
 Dyson Spheres
A sphere's radius would be equal to the orbital distance of the race's home planet (or an equivelent distance based on the sun's output) so that once the sphere is completed, it will receive an appropriate distribution of energy so that the species can live comfortably on the interior surface.
The great advantage to a Dyson Sphere is twofold: One, the species inhabiting the sphere can theoretically use 100% of their sun's power, and two, the sphere's inner surface provides an enormous habitable area for, potentially, an entire species.
The Dyson Sphere which I have discussed so far is known as a Type 2 Dyson Sphere: It is a totally whole, solid sphere.
users.rcn.com /jasp.javanet/dyson   (819 words)

  
 Flik: Sphere Central
Sphere is primarily designed as an RPG Maker, yet thanks to it's scripting language all sorts of crazy games have been made.
Sphere is in its post-alpha stages of life, so its not quite complete, but as it grows it gets better.
Sphere is available for download on sphere.sf.net's download page.
sphere.sourceforge.net /flik/info.html   (296 words)

  
 TechCrunch » First Screen Shot of Sphere
Sphere is a new blog search engine that quite frankly blows everything, and I mean everything, I’ve seen out of the water in terms of relevance (and, by the way, design…Adaptive Path was involved).
On the 31st October I received this from Sphere:-
Sphere has tens of thousands of beta requests and is opening up to 100 lucky people this weekend.
www.techcrunch.com /2005/10/14/first-screen-shot-of-sphere   (1249 words)

  
 sphere.txt
Sphere is not a system for interacting with the user, rather it is a system for managing and organizing a user interaction system.
In developing Sphere I did not look to history or endorse the continuation of a single course of evolution from the time before I was born but rather I looked closely at how computers are built and used today.
The User interface sphere may also provide facilities to run commands like any other shell, though any number of techniques can be employed by this sphere on any number of devices at any time, which may or may not include classic utilities, or may accomplish the same ends through data "workbenches".
users.rcn.com /alangrimes/UCE/sphere.txt   (10023 words)

  
 SPHERE Depression Anxiety Health Education - Depressed Postnatal Laterlife CBT Persistent Pain
SPHERE: a national mental health project’ is an educational initiative that was established as a collaborative project between representatives of all medical schools across Australia, academic psychiatrists, psychologists, general practitioners and clinicians from both the specialist psychiatry and primary care sectors.
All SPHERE educational resources and products are approved mental health training resources for general practitioners and are also particularly useful for patients and carers in providing them with the appropriate knowledge and tools to understand and manage depression, anxiety and somatic distress.
SPHERE: a national mental health project’ aims to assist GPs, Mental Health professionals and the Community in dealing with the identification, treatment and management of mental health disorders, including depression, anxiety and physical pain.
www.spheregp.com.au   (146 words)

  
 Sphere (Java 3D API)
Sphere is a geometry primitive created with a given radius and resolution.
Constructs a Sphere of a given radius and appearance with additional parameters specified by the Primitive flags.
When a texture is applied to a Sphere, it is mapped CCW from the back of the sphere.
paula.oulu.fi /Documents/j3ddoc/com/sun/j3d/utils/geometry/Sphere.html   (635 words)

  
 TechCrunch » Will Sphere Solve the Blog Relevance Problem?
Instead, Sphere seems to be be trying to determine blog authority on a given subject area, and determine new authoritative blogs based on who those blogs point to.
There is a very funny bit in Los Big Names where she is trying to brag about having a part in the movie “Sphere” only to discover that the word is not so easy to pronounce/hear.
Sphere is taking a crack at building a more relevant blog search engine.
www.techcrunch.com /2005/10/08/will-sphere-be-blog-search-20   (400 words)

  
 Amazon.com: Sphere: DVD: Dustin Hoffman,Sharon Stone,Samuel L. Jackson,Peter Coyote,Liev Schreiber,Queen Latifah,Marga Gómez,Huey Lewis,Bernard Hocke,James Pickens Jr.,Michael Keys Hall,Ralph Tabakin,Barry Levinson
What they don't know is that the sphere has the power to manipulate their thoughts and perceptions, and before long the scientists' undersea habitat is a veritable haunted house of frightening visions and creeping paranoia.
Sphere makes some attempt to answer these questions, but the film is a mess, and it leads to one of the most anticlimactic endings of any science fiction film ever made.
The Sphere is about a group of experts who descend into the ocean and discover a ship from the future that houses an alien gold ball.
www.amazon.com /exec/obidos/tg/detail/-/079073639X?v=glance   (3100 words)

  
 MMORPG.COM - Sphere : Overview - Information About The Game
The first add-on "Sphere: The Hyperion Curse" appeared 3 month later after the official release of the game.
"Sphere" is the first russian MMORPG genre representative with high-level gameplay and game balance.
There was a lack of place and activity fields for all the users, who wished to "live in Sphere".
www.mmorpg.com /gamelist.cfm/setView/overview/gameID/112   (359 words)

  
 Sphere
Then I displaced the sphere with a noise pattern, and added a small bump which is noise ran through a warp texture.
The mesh is then volume selected to leave a sphere(!) of points, which in turn is used as the source for a PArray particle system.
Imprisoned sphere Although it should be very obvious what kind of sphere this is..
www.morphographic.com /Sphere.htm   (2376 words)

  
 Amazon.com: Sphere: Books: Michael Crichton
Sphere is by no means a perfect novel, but I found it captivating and basically addictive up until the somewhat disappointing ending.
Sphere is not only a gratifying sci-fi suspense tale; it also reflects Crichton's keen interest in the unexplained powers of the human mind.
The mysterious Sphere imparts an amazing power to those who enter it, a power that such individuals may not even be consciously aware of wielding.
www.amazon.com /exec/obidos/tg/detail/-/0345353145?v=glance   (1936 words)

  
 Sphere, Humanitarian Charter and Minimum Standards in Disaster Response
As the community of Sphere users is growing all over the world, with increased accumulated knowledge about its implementation in practice, the Sphere office is realising the need to further support the dissemination of this experience and knowledge about Sphere.
Sphere Global Training of Trainers’ course was held at Ecogia Training Centre near Geneva from 27 November to 5 December 2005.
Appropriate materials, and training/learning activities to support the integration of Sphere into the policy and practice of humanitarian actors, are key to ensuring the effective use of Sphere.
www.sphereproject.org   (665 words)

  
 dysonFAQ.html
This would produce spheres with a radius of 0.0057-0.0069 AU (852,720 - 1,032,240 km).
The Dyson sphere (or Dyson shell) was originally proposed in 1959 by the astronomer Freeman Dyson in "Search for Artificial Stellar Sources of Infrared Radiation" in Science as a way for an advanced civilisation to utilise all of the energy radiated by their sun.
But if the sphere is inside the dyson sphere (the sun is ignored in this calculation, as we are only interested in the gravity of the dyson sphere), there is no mass inside it and hence the integral must be zero, which means that there is no gravitational field inside the sphere.
www.nada.kth.se /~asa/dysonFAQ.html   (5329 words)

  
 Sphere
The soul is the radiance of the sphere.
The spirit is the motion of the reflected images that constantly flow through the structures within the sphere.
Recently, historians Sara Rappe and Gregory Shaw have suggested that the sphere of Plotinus was more than a metaphor; it was intended as a meditation object.
www.geocities.com /nulliusinverba/Sphr.htm   (886 words)

  
 The Geometry of the Sphere 1.
Remember that a great circle is the intersection of the sphere with a plane that passes through the center of the sphere.
However, since the great circles are geodesics on the sphere, just as lines are in the plane, we should consider the great circles as replacements for lines.
It is easy to see that the circle of intersection will be largest when the plane passes through the center of the sphere, as it does in the figure to the left.
math.rice.edu /~pcmi/sphere/sphere.html   (667 words)

  
 Sphere
Sphere is a blog search engine focused on discovering high quality, relevant blogs on a timely basis.
We hope Sphere, focused solely on returning the most relevant user-generated content, will help readers explore the blogosphere more effectively, and perhaps inspire many to become bloggers themselves and contribute to the 'sphere.
This past January, the three of us (Tony Conrad, Martin Remy, and Steve Nieker) founded Sphere because we believe we could build a better blog search engine.
www.sphere.com /about.html   (446 words)

  
 Problem H - 2001 Regionals Warmup Contest
As these are paired spheres their destructive power is twice of the previous sphere.
In this movie there is an sphere from outer space which enables a man to convert his night-mares into reality.
As our scientists are very good in physics we can determine the weight of the spheres but sadly they are very week in mathematics.
acm.uva.es /p/v101/10175.html   (420 words)

  
 aegisknight.org sphere
For sound, Sphere uses Audiere, which means it can play Ogg Vorbis, MP3, WAV, IT, XM, S3M, and MOD files.
Sphere is a 2D RPG engine, in development since 1997.
Sphere comes with an integrated environment for editing maps, spritesets, scripts, fonts, etc. You can even play your game's music and sound effects while you work.
aegisknight.org /sphere   (384 words)

  
 Game features - Sphere
Legend has it all developments in the illusory world of “Sphere” have some influence on the real world.
Game action is set in Sphere, an ancient magic universe parallel to ours.
Any player’s main objective is to become the king of “Sphere”.
www.sphere.yandex.ru /eng/features.xml   (184 words)

  
 Encyclopedia of Laser Physics and Technology - integrating spheres, Ulbricht sphere
It is a hollow sphere with a diffusely reflecting internal surface, typically two or more small openings (ports) for introducing light or attaching a photodetector, and often some so-called baffles, which are light barriers used to prevent direct illumination of a detector by a light source.
An integrating sphere is an optical device for various purposes such as measuring the optical flux from a laser diode, light-emitting diode (LED) or bulb, or measuring scattering losses from a surface.
If the optical losses in the sphere and through the ports are low, the multiple reflections can lead to a rather high radiance inside the sphere and consequently to a good optical efficiency, even if the sphere is much larger than the light source and the detector.
www.rp-photonics.com /integrating_spheres.html   (307 words)

  
 The Sphere Project Handbook - Humanitarian Charter and Minimum Standards in Disaster Response
When you have used this new edition of Sphere Handbook, we are eager to get your comments and suggestions, based on your personal use, through our feedback form.
In a remarkable international initiative aimed at improving the effectiveness and accountability of disaster response, the Sphere Humanitarian Charter and Minimum Standards in Disaster Response sets out for the first time what people affected by disasters have a right to expect from humanitarian assistance.
The aim of the Project is to improve the quality of assistance provided to people affected by disasters, and to enhance the accountability of the humanitarian system in disaster response.
www.sphereproject.org /handbook   (294 words)

  
 The Geometry of the Sphere
We will study the incidence relations between great circles, the notion of angle on the sphere, and the areas of certain fundamental regions on the sphere, culminating with the area of spherical triangles.
The curves on the sphere with the same property are the great circles.
In plane geometry we study points, lines, triangles, polygons, etc. On the sphere we have points, but there are no straight lines--- at least not in the usual sense.
math.rice.edu /~pcmi/sphere   (410 words)

  
 Spheremusic - Home page
Sphere® is designed to be available 24 hours a day seven days a week.
Sphere® is a site dedicated to pro audio equipment and to musical instruments.
Still have some questions? Check out the list of frequently asked questions.
www.spheremusic.com   (447 words)

  
 ndxLocOut
It was a UFO About 9:30pm, I was just happed to be outside and I saw this--- Just a red-sphere, that I seen before...I have seen many
Sphere shaped and bright light, bopping up and down moving at the same speed as the airplane I was in.
It was a sphere shaped object with lights on it....it had left jet stream marks in the sky,then landed.
www.nuforc.org /webreports/ndxsSphere.html   (5384 words)

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