# tetrahedron

share## Examples

tetrahedron's examples

- The total surface area of the
**tetrahedron**= . We have found the volume of the**tetrahedron**in relation to it's side. Since all 4 vertices of the**tetrahedron**will fit inside a sphere, what is the relationship of the side of the**tetrahedron**to the radius of the enclosing sphere. —*“The Tetrahedron”*, **Tetrahedron**publishes experimental and theoretical research results of outstanding significance and timeliness in the field of organic chemistry and its application to related disciplines especially bio-organic chemistry.**Tetrahedron**publishes experimental and theoretical research results. —*“Tetrahedron - Elsevier”*,- The online version of
**Tetrahedron**on ScienceDirect, the world's leading platform for high quality peer-reviewed full-text publications in science, technology and health. —*“ScienceDirect - Tetrahedron, Volume 66, Issue 51, Pages 9635”*, **TETRAHEDRON**(Gr. TErpa-, four, Spa, face or base), in geometry, a solid bounded by four triangular faces. It consequently has four vertices and six edges. If the faces be all equal equilateral triangles the solid is termed the "regular" tetrahedron. —*“Tetrahedron - LoveToKnow 1911”*, 1911- Pages in category "Tetrahedron" This category contains only the following page. T in category "Tetrahedron" The following 90 files are in this category, out of 90 total. —
*“Category:Tetrahedron - Wikimedia Commons”*, - If you look at the word
**tetrahedron**(tetrahedron means "with four planes"), you could call every pyramid with a triangle as the base a tetrahedron. However the**tetrahedron**is the straight, regular triangle pyramid on this website. Pieces of the**Tetrahedron**top. —*“Tetrahedron”*, mathematische- - home. Copyright (c) 2007
**Tetrahedron**Ltd. All Rights Reserved. —*“Tetrahedron - Home, (c) 2007*, tetrahedron.gr**Tetrahedron**Ltd. All Rights Reserved” - (geometry) a polyhedron with four faces; the regular tetrahedron, the faces of which are equal equilateral triangles, is one of Retrieved from "http:///wiki/tetrahedron" Categories: Ancient Greek derivations | English nouns | Geometry | English nouns with irregular plurals. —
*“tetrahedron - Wiktionary”*, - The Wall Street Journal awarded Eikos a Technology Innovation Award for Materials and Please visit the Careers page for more information. Invisicon®, our transparent. —
*“Eikos, Inc - Invisicon(R) Technology”*, - The
**tetrahedron**also has a beautiful and unique property Note: If you have more than one**tetrahedron**they are called tetrahedra (When we say "tetrahedron" we often mean "regular tetrahedron" (in other words all faces are the. —*“Spinning Tetrahedron”*, - Begin with a
**tetrahedron**of edge length s. Its faces are equilateral triangles. The**tetrahedron**is its own dual, meaning that if the centers of the adjacent faces are connected with line segments, the resulting figure is another tetrahedron. —*“The Tetrahedron”*, - (Click to enlarge)
**tetrahedron**(Academy Artworks)**tetrahedron**n. , pl. , -drons , or -dra . A polyhedron with four faces The**tetrahedron**is one kind of pyramid, which is a polyhedron with a flat polygon base and triangular faces connecting the base to a common point. —*“tetrahedron: Definition from ”*, - A selection of articles related to tetrahedron. —
*“tetrahedron”*, - A
**tetrahedron**(plural: tetrahedra) is a polyhedron composed of four triangular faces, three of which meet at each vertex. Taking both tetrahedra within a single cube gives a regular polyhedral compound called the stella octangula, whose interior is an octahedron. —*“Tetrahedron - Wikinfo”*, - Non-profit educational corporation that was founded by public health authority Dr. Leonard G. Horowitz to educate people around the world on matters of extreme public importance. —
*“Tetrahedron Publishing Group”*, - In general, a
**tetrahedron**is a polyhedron with four sides. If all faces are congruent to an equilateral triangle, then the**tetrahedron**is known as a regular tetrahedron. —*“Tetrahedron -- from Wolfram MathWorld”*, - Definition of
**tetrahedron**in the Online Dictionary. Meaning of tetrahedron. Pronunciation of tetrahedron. Translations of tetrahedron.**tetrahedron**synonyms,**tetrahedron**antonyms. Information about**tetrahedron**in the free online English. —*“tetrahedron - definition of*,**tetrahedron**by the Free Online” **Tetrahedron**definition, a solid contained by four plane faces; a triangular pyramid. See more. —*“Tetrahedron | Define*,**Tetrahedron**at ”- Tetrahedron, Inc., specifically provides solutions to challenges in the fields of environmental engineering and science, environmental management systems, health and safety, petroleum engineering, computer simulations, quality management, information. —
*“Tetrahedron, Inc”*, tetrahedron- - A
**tetrahedron**(plural: tetrahedra) is a polyhedron composed of four triangular faces, three of which meet at each vertex. The**tetrahedron**is one kind of pyramid, the second most common type;. —*“Tetrahedron”*, schools- - In geometry, a
**tetrahedron**(plural: tetrahedra) is a polyhedron composed of four triangular faces, three of which meet at each vertex. A regular**tetrahedron**is one in which the four triangles are regular, or "equilateral", and is one of the Platonic solids. —*“Tetrahedron - Wikipedia, the free encyclopedia”*,

## Videos

related videos for tetrahedron

**Cubic Close Packing (tetrahedral hole) of Zinc Blende - Sphalerite****64 tetrahedron**The dual torus topology occupies a central role in the spinor, twistor and quaternionic formulation. This topology appears to be ubiquitous in astrophysical and cosmological phenomena and is predicted by the U4 bubble of the affine connection in the Haramein-Rauscher solution to Einsteins field equations. The geometric structure of the complexified Minkowski space is associated with the twistor algebra, spinor calculus, and the SUn groups of the quaternionic formalism. Hence quantum theory and relativity are related mathematically through the dual torus topology.**Firgelli mini Linear actuator Tetrahedral NASA ROVER robot**This is a Firgelli Technologies LS9 mini linear actuator Tetrahedral Robot in opperation. for this project 6 x LS9 100mm stroke linear actuators were built specifically for this project. These mini actuators include an automatic force sensing and limit shut-off patent pending technology which makes them ideal for Robotics, the large end caps you see contain the electronics and batteries, once the robot changes shape by moving all 6 actuators at the same time the center of gravity moves such that it eventually falls over, this is how the robot moves, no legs, no wheels, simply moving by adjusting the center of gravity. This concept came from NASA, but they didnt have the technology to make it work, so Firgelli Technologies decided its LS9 technology was ideal.**Holon Tetrahedron GYROSCOPE**This is the holon tertrahedron gyroscope that is made with cardboard. It is an Origami is a Japanese, a paper sculpture. It reminds me of Nassim Haramein description of our universe and the finger of God of Marko Rodin. I will continue doing a large video about my theory TAO universe.**12Tet Tetrahedral Rover Robot Concept**ants.gsfc.nasa.gov A concept video of NASA's 12Tet Rover Robot.**Origami 4 Sided Dice (tetrahedron)**How to make a 4 sided dice (tetrahedron) using paper. Size: 4cm x 3.4cm each module (6 modules) MY FACEBOOK PAGE:**Multiple Integrals 9: Finding Volume Problems (Tetrahedron)**Using the Double integral to find the volume of a tetrahedron bounded by a plane and the coordinate planes. For a more in depth look at multiple integrals or other calculus related topices, please visit**Lecture - 28 3D - Tetrahedral and 2D - Quadrilateral Element**Lecture Series on Computer Aided Design by Dr.Anoop Chawla, Department of Mechanical Engineering ,IIT Delhi. For more details on NPTEL visit nptel.iitm.ac.in**Hourglass Tetrahedron Chainmaille Tutorial**This is a tutorial for my chainmaille weave Hourglass Tetrahedron. The total number of rings used is 28, 16 pre-closed and 12 pre-opened. The rings are 14ga .55" ID, with an actual aspect ratio of 7.5. My chainmaille work:**Akin illumination - Tetrahedron 2008**It make by 12 pcs Regular Triangle to be a Tetrahedron.You will see how to Hook on top Edge fold down,and Hook at bottom Edge fold up.More info please visit :**Tetrahedral Embedded Boundary Methods for Accurate and Flexible Adaptive Fluids**Demo video for our Eurographics 2010 paper entitled "Tetrahedral Embedded Boundary Methods for Accurate and Flexible Adaptive Fluids" authored by Christopher Batty (UBC), Stefan Xenos (Exocortex), and Ben Houston (Exocortex.) Academic website: www.cs.ubc.ca Commercial website:**Tony Fisher's Tetrahedron Puzzle**I thought up the idea for this while working on my Octahedron Skewb in 1991. Having made one of the platonic shapes it seemed a natural progression to make the others also. As far as I was aware at the time I was designing something new. However much later I discovered the puzzle was already very well known and called the Halpern-Meier Pyramid. In addition I can now recall seeing a drawing of a similar looking puzzle in David Singmaster's Cubic Circular many years earlier. I am beginning to wonder if I really thought up this puzzle independently. So many puzzles, so long ago! I cast the first one of these in polyester resin using remeltable rubber (Gelflex) moulds. Originally the pieces were solid though later I tried hollow casting. Later still I made the parts from high impact polystyrene plastic sheet and although trickier to make were considerably lighter. The quality is very good and rotational movement is excellent. Moves end with a pleasing click. At the time of making, Mini Skewbs were not available so I had no choice but to make it this size. The only other Tetrahedron puzzle I have made is my 3x3x3 Tetrahedron .**Truncated Tetrahedron**How to make a truncated tetrahedron out of a piece of paper cut into a circle. If you make 20 of these you can form them together into a icosahedron. I "stole" this lesson from:**Origami Tetrahedron (Jo Nakashima)**How to make a simple origami tetrahedron You can use it as a 4 sided die Don't worry about the exact size of paper, just pick a strip long enough to make some triangles! MY FACEBOOK PAGE:**Tetrahedra Obsession**Got this obsession for origami Tetrahedra. Especially 5 intersecting ones as created by Tomas Hull.... I see them everywhere ... in my dreams, in my nightmares, in the supermarket, in the streets, in my trashcan... aaaaargh everywhere!!! Music by**Tetrahedral Spherical Standing Wave**Each face is composed of 100x100 quads. There is a spherical standing wave centered about each tetrahedral vertex. The color varies with respect to the density of each wave. N1 and N2 are colored RGB(0,1,1) whereas P1 and P2 are colored RGB(1,1,0). Coordinate Axis: X - Right Y - Up Z - Towards viewer Vertices of tetrahedron: P1(+1, +1, +1) P2(-1, +1, -1) N1(-1, -1, +1) N2(+1, -1, -1) Spherical standing wave equation: \hat{X} = X \hat{Y} = Y \hat{Z} = Z \hat{D} = Sin(2 π Sqrt(X^2 +Y^2 + Z^2) / λ) Cos(T) Written in C++ using SDL and OpenGL by BJRowlett and RSKueffner.**Drewseph's Master Tetrahedron: Completed**This is a completed and fully functional Master Tetrahedron. The internal mechanism has gone through another sanding pass and now turns better than ever, with exception of the occasional lock up on counter-rotation. I designed the pieces in a 3d program and had them printed at I used the masters to make molds which I then cast plastic resin pieces from. total time spent: 10-15 hours**Five Intersecting Tetrahedra Origami**How to make five intersecting tetrahedra in origami. Each module has 5cm x 15cm. You'll need 6 modules for each tetrahedron (total of 5 x 6 = 30 modules). In this video I'm showing only how to make one tetrahedron, you'll need to build 5 all intersecting. In the link below you can find the diagram and some tips on joining the modules: kahuna.merrimack.edu It really is a challenging puzzle to put it all together but it is also very fun! Good luck! If you were not able (or don't wanna try) to intersect all tetrahedra, there is another video showing the complete assembly: MY FACEBOOK PAGE:**Drewseph's RX (Master Tetrahedron v3)**The first build of my Master Tetrahedron in the form of a Reuleaux (pillowed) shape. After making the V2 design I wanted it to be smaller, and fully functional right from a 3d print without any sanding needed. Thanks to the help of my friend Adam, I was able to supply him with my mechanism, and he was able to build a much smaller and more functional puzzle which you can see in this video. This puzzle is made entirely of 3d printed pieces (thanks to Bradley @ Printo3) which have been covered in solvent and brushed smooth. It turns amazingly well.**Tetrahedra**Here is a video i made with my origami Five Intersecting Tetrahedra**Re: Origami star (Five intersecting tetrahedra)**Ask your little sister to make all the tetrahedron beams... and concentrate on the assembly. Just before you throw it in the bin watch this vid ... and have another try!! No money back guarantee... kahuna.merrimack.edu**Beat Hazard - Tetrahedron by Quinn Fox**Tetrahedron by Quinn Fox on suicidal difficulty. this song is part of the Cave Story Remix Project found here : You can Download a 3 CD set off all the songs in Cave Story remixed. Thanks to: Studio Pixel for creating Cave Story Nicalis, Inc. for bringing this great game to WiiWare Cold Beam Games for creating Beat Hazard. (Available on PC (Steam) and Xbox 360 Console) and Last but not least, Remixers: Corran Facelessman Quinn Fox sinowBeay tumult Vaughn Kris Davis Rexy OverCoat Tackle Prophecy k-wix RushJet1 Dj Fezik DJ Dain**Hyperdimensional Experiment: Plasma ball, tetrahedron, ankh**In this experiment I have a crudely made tin-foil tetrahedron sitting near the plasma ball. If I connect my neon ANKH detector to the apex of the foil tetrahedron, the neon will light quite nicely, even at a couple of feet. If I place my foot or hand in the path between the ball and the tetrahedron, my body becomes a better path to ground for the energy - path of least resistance - and the neon goes out. If I touch the plasma ball, again, neon goes out. Lastly, placing the plasma ball into the tetrahedron shows the streamers organize into 3 streamers going to each plane of the tetrahedron. This is a sort of crude model of PLANET (plasma ball), pyramid (tetrahedron) and consumer of the energy (Ankh detector). Imagine a large metallic tetrahedron in space aimed at the sun to collect radiant energy. Similar to NASA's tether experiment, the tetrahedron geometry might be more ideal as a "collector" and "resonator" of radiant energy --- acting as a capacitor.**Origami star (Five intersecting tetrahedra)**For all those who like a challenge! This is an extremely complicated model to assemble so do pay careful attention to the still pictures when they come up. This would take aproximetely 2 hours to complete, but it looks fantastic at the end. Good luck! Tell me if you have any trouble or want any tips and I'll try and help out.**ENVELOPE TETRAHEDRON - ENGLISH - 27MB.wmv**FOLD AN OLD ENVELOPE INTO A TETRAHEDRON & LATER MAKE AN AMAZING FLEXAGON!!**Origami Tetrahedron**I also made a reprise to this video that cleared up a lot, such as the ending that seems like people struggled with. Link is in the upper left as the video starts and in the video replies below. If something is unclear, consult that video first. If there is stillany part you can't see, don't just say 'get your fingers out of the way', give me a time in minutes and seconds so that I can post another vid or annotate it appropriately. Thanks.**Tetrahedral Void**An animation describing the geometry of a tetrahedral void occupied by an atom(dark spot in the void) in a typical ceramic crystal.**Drewseph's Royal Tetrahedron**This higher order Tetrahedron is the equivalent to the 9x9x9 V-cube. This puzzle is solidly built and doesn't rattle. none of the parts feel loose or fragile. the turning is smoother than silk! I have not had any problems with it jamming on me while turning (aside from trying to make a video of the turning, thanks Murphy) This puzzle has 199 pieces. Solving it should not be too difficult, but this puzzle is extremely fun to hold and turn.**TopMod - Tetrahedron Spikes**For more info check out: www.ends170.com**NANODOTS Tutorial #14: Solid 3 Sided Pyramid (Tetrahedron)**Where to buy: these are the best quality magnet spheres on the market Ok so here it is. Tons of people have been asking me how to build this shape, so here it is. Its been one of the better kept secrets with these magnets, but I figured I might as well share it. I know its not technically solid, bit 100% solid is not possible with normal magnets (2 poles). EDIT: ok i found out how to make it totally solid... but its hard.. and annoying... and not terribly stable. so... yeah. no tutorial. Also I used the black magnets for this one. I think they just look cool. You can obviously use any color though. Balls used: 152**NeoCube: Spinning Tetrahedron**A nice spinner. The chain it dangles from can be pushed into the top and can also be pulled back out again. There are 240 magnets in the tetrahedron. If you leave out the last 6 magnets on each end, you can make one out of 216 magnets. To make the tetrahedron: make 4 triangles with 9 magnets on each side. Take away the 3 corner magnets from each triangle. Bring the triangles together so the sides line up, not crossed. It's a bit tricky. Once you got it, make 3 circles (or 2 if you only have 216 magnets) of 6 magnets and stack them up crossed. Make another 3 of these bits and stick them on the corners of the tetrahedron.**26. Van't Hoff's Tetrahedral Carbon and Chirality**Freshman Organic Chemistry (CHEM 125) With his tetrahedral carbon models van't Hoff explained the mysteries of known optical isomers possessing stereogenic centers and predicted the existence of chiral allenes, a class of molecules that would not be observed for another sixty-one years. Symmetry operations that involve inverting an odd number of coordinate axes interconvert mirror-images. Like printed words, only a small fraction of molecules are achiral. Verbal and pictorial notation for stereochemistry are discussed. Complete course materials are available at the Open Yale Courses website: open.yale.edu This course was recorded in Fall 2008.**How to make an origami truncated tetrahedron**Here's an easy modular origami, you can assemble 18 for a truncated tetrahedron like this, 24 for a cuboctahedron, 30 for a dodecahedron, 48 for a rhombicuboctahedron and so on...**Double integrals: Volume of a tetrahedron**I discuss and solve an example where we calculate the volume of a tetrahedron. The method involves double integrals and is seen in 1st and 2nd year university mathematics.**Truncated Tetrahedron**WEBSITE: Fold a 3d shape without need for scissors of tape. Just an A4 sheet of paper**Triangles & Tetrahedra of Structure, Bonding & Material Type**A discussion of covalent, ionic and metallic bonding using van Arkel-Ketelaar and Jensen triangles and a move to Laing and truncated tetrahedra of structure, bonding & material type.**Cubic Close-Packed Unit Cell (tetrahedral hole) of Zinc Blende - Sphalerite****origami tetrahedron**dollar bill origami money origami origami dodecahedron modular origami tetrahedron how to fold paper into a triangle how to make rotating origami tetrahedra how to make an origami tetrahedron paper tetrahedron merkaba origami how to fold a paper pyramid regular tetrahedron origami origami triangle pyramid origami tetrahedrons triangle origami origami pyrimid tetrahedron origami instructions making a paper pyramid star tetrahedron origami 3d origami pyramid oragami pyramid pyramid origami origami triangular prism how to make an origami pyramid origami tetrahedron instructions how to fold a tetrahedron origami dodecahedron modular origami tetrahedron how to fold paper into a triangle how to make rotating origami tetrahedra how to make an origami tetrahedron paper tetrahedron merkaba origami how to fold a paper pyramid regular tetrahedron origami origami triangle pyramid origami tetrahedrons triangle origami origami pyrimid**Sierpinski tetrahedrons**Students create a large 3-sided pyramid out of folded up pieces of paper.**Origami Folding Instructions - Tetrahedron**A video showing you how to build a tetrahedron showing you a three step process.

## Blogs & Forum

blogs and forums about tetrahedron

*“Archived from groups: alt.games.ultima,alt.games.ea.origin.ultima,alt.games.ultima-online,puter.ultima.series (More info?) I'm still playing Ultima 7 but I think I'm being stopped by”**— U7***tetrahedron**generator problem - Games-General-Discussions,*“Posts Tagged Tetrahedron' Diazepam For Sale. by Jeremy on May 07 2009 (2559 Views) I reaction times and overall yields (Tetrahedron 2000, 56, Diazepam from canadian pharmacy,”**— Diazepam For Sale, chemistry-**“Tetrahedron: Artists Penn & Teller Exposed As "PharmaWhores"”**— Tetrahedron: Artists Penn & Teller Exposed As "PharmaWhores",**“RE: warlok - Key To The Tetrahedron. Cheers guys! Took your advice. Ive managed to cut drumnbass.be forum " Production " Tunes " warlok - Key To The Tetrahedron”**— warlok - Key To The***Tetrahedron**- drumnbass.be, drumnbass.be*“Forum. Members (55) Viewing post 1 to 1 (1 total posts)***Tetrahedron**TriMesh class (1 post I needed a tetrahedron, and since JME didn't provide a TriMesh for it,”*— | Groups | User Code & Projects | Forum,**“Randolph Bangay II's Blog. TETRAHEDRON. Tetrahedron. A***tetrahedron**(plural: tetrahedra) is a polyhedron composed of four triangular faces, three of which meet at each vertex. A regular**tetrahedron**is one in which the four triangles are regular, or "equilateral", and is one of the Platonic solids”*— | Randolph Bangay II's Blog,**“tht tne's Blog > tht! tne - star***tetrahedron**ep. Forum Rules. View New tht tne's Blog. 1 Votes. tht! tne - star**tetrahedron**ep. 11 October 2010”*— tht! tne - star***tetrahedron**ep - We Are The Music Makers Forums,*“Crop Circles -***Tetrahedron**(DAT Records) *Etnica&Lotus Omega ! Forum Psy Trance Goa - Psysurfeur.com > The English Forum Psytrance > General psytrance > Fil de discussion: Crop Circles -**Tetrahedron**(DAT Records) *Etnica&Lotus Omega !”*— Crop Circles -***Tetrahedron**(DAT Records) *Etnica&Lotus Omega !!*,*“Priestess is Greek and The***Tetrahedron**Diamond Posted by SS RE: Priestess is Greek and The**Tetrahedron**Diamond. actually i have just made a new blog for the greek olympics ceremony: Opening Ceremony of the 2004 Greek Olympic Games”*— Alien- Forum - Priestess is Greek and The, alien-**“Posts Tagged tetrahedron' Get your tick fix! 06.02.09. Tick Tick has been dreaming, prints, screen printing, tetrahedron, Tick Tick, vendor, vermont”**— TICK TLOG " tetrahedron,*

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