Proposed Problem
Click the figure below to see the complete problem 411 about Triangle, Median, Angles.
See also:
Complete Problem 411
Level: High School, SAT Prep, College geometry
Thursday, December 31, 2009
Problem 411: Triangle, Median, Angles
Wednesday, December 30, 2009
Mining Matters in your Everyday Life by the Colorado Mining Association
Informative and educational video on how mining matters to each and every one of us in our every day life, not just in Colorado but around the world..
Click the figure below to see the video.
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Mining Matters in your Everyday Life by CMA
Orchestrating a Mine: Caterpillar MineStar
MineStar is an integrated mining information system that helps lower costs, improve efficiency, and increase productivity in all types of mining applications.
Click the figure below to see the video.
See more:
Mining Information System: Caterpillar MineStar
Lavender Pit, former open-pit copper mine
The Lavender Pit is a former open pit copper mine near Bisbee in Cochise County, Arizona, United States. It is located near the famous Copper Queen Mine.
Click the figure below to see the video and interactive satellite map.
See more:
Lavender Pit, Bisbee
Toquepala - Villa Staff and Plaza
Toquepala is a porphyry copper deposit in the southern sierra, inland from the port of llo. It is worked as an open pit.
Click the figure below to see the video and satellite map.
See more:
Toquepala - Villa Staff and Plaza
Berkeley Pit: Environmental geology of Butte, Montana - Video and Satellite Map
A report on the environmental geology of Butte, Montana with a focus on Berkeley Pit.
Click the figure below to see the video and interactive satellite map.
See more:
Berkeley Pit: Environmental geology of Butte, Montana
Tuesday, December 29, 2009
Puzzle based on the Kosnita's Theorem: Circumcenters, Concurrent lines
Interactive Puzzle
Click the figure to solve the interactive puzzle about the Kosnita's Theorem: Circumcenters, Concurrent lines
See also:
Puzzle: Kosnita's Theorem
The Geometry of Life, Part 1,2,3,4
Video
Part 1: Brief introduction to, and history of, sacred geometry.
Click the figure below to see the video.
See more:
Part 1: Brief introduction to, and history of, sacred geometry
Part 2: The square root of three in geometric form
Part 3: The square root of three in molecular structure
Part 4: Close Packing and Conclusions
Monday, December 28, 2009
How did mathematics begin?
Video
Animated movie on the development of numbers.
Click the figure below to see the video.
See more:
History of Mathematics: the Development of Numbers
Sunday, December 27, 2009
Puzzle: Composition II in Red, Blue, and Yellow by Piet Mondrian
Interactive Puzzle
Click the figure to solve the interactive puzzle about Composition II in Red, Blue, and Yellow by Piet Mondrian and golden rectangles.
See also:
Puzzle: Composition II in Red, Blue, and Yellow by Piet Mondrian
No. 5, 1948, Jackson Pollock and Golden Rectangles
Interactive Puzzle
Click the figure to solve the interactive puzzle about the Golden Rectangle and No. 5, 1948, Jackson Pollock.
See also:
Puzzle: The Golden Rectangle and No. 5, 1948, Jackson Pollock
Puzzle: Euclid's Elements Book I, 23 Definitions
Interactive Puzzle
Click the figure to solve the interactive puzzle about Euclid's Elements Book I, 23 Definitions.
See also:
Puzzle: Euclid's Elements Book I, 23 Definitions
Puzzle: Inca Skull Surgery
Interactive Puzzle
Click the figure to solve the interactive puzzle about the Inca Skull Surgery.
See also:
Puzzle: Inca Skull Surgery
Puzzle: Taj Mahal & Geometry Shapes
Interactive Puzzle
Click the figure to solve the interactive puzzle about the Taj Mahal & Geometry Shapes.
See also:
Puzzle: Taj Mahal & Geometry Shapes.
Puzzle: If - Rudyard Kipling' Poem
Interactive Puzzle
Click the figure to solve the interactive puzzle about If - Rudyard Kipling' Poem.
See also:
Puzzle: If - Rudyard Kipling
Problem 410: Two Regular Pentagons, Angle
Proposed Problem
Click the figure below to see the complete problem 410 about Two Regular Pentagons, Angle.
See also:
Complete Problem 410
Level: High School, SAT Prep, College geometry
Saturday, December 26, 2009
Toquepala Mine - Table of Content
Toquepala is a porphyry copper deposit in the southern sierra, inland from the port of llo. It is worked as an open pit.
Click the figure below to see the index.
See more:
Toquepala Index
Toquepala City, Memories 2009 - Video and Satellite Map
Toquepala is a porphyry copper deposit in the southern sierra, inland from the port of llo. It is worked as an open pit.
Click the figure below to see the video and satellite map.
See more:
Toquepala City, Memories 2009
Problem 409: Quadrilateral, Diagonals, Perpendicular, Congruence
Proposed Problem
Click the figure below to see the complete problem 409 about Quadrilateral, Diagonals, Perpendicular, Congruence.
See also:
Complete Problem 409
Level: High School, SAT Prep, College geometry
Hull Rust Mine, Hibbing Taconite - Video and Satellite Map
The largest open pit iron mine in the world.
Click the figure below to see the video and interactive satellite map.
See more:
Hull Rust Mine, Hibbing Taconite
Hull-Rust-Mahoning Open Pit Iron Mine
The largest open pit iron mine in the world.
Click the figure below to see the video and interactive satellite map.
See more:
Hull-Rust-Mahoning Open Pit Iron Mine
Friday, December 25, 2009
Tagebau Garzweiler coal mine, Open Pit Mining Operation
The Tagebau Garzweiler is a large coal mine using strip mining in Northrhine-Westphalia, Germany. The bucket-wheel excavators used there are the largest vehicles in the world.
Click the figure below to see the video and interactive satellite map.
See more:
Tagebau Garzweiler coal mine
Problem 408: Cyclic quadrilateral, Perpendicular, Parallelogram, Congruence
Proposed Problem
Click the figure below to see the complete problem 408 about Cyclic quadrilateral, Perpendicular, Parallelogram, Congruence.
See also:
Complete Problem 408
Level: High School, SAT Prep, College geometry
Thursday, December 24, 2009
Problem 407. Circle, Angle, Tangent, Perpendicular, Secant, Radius, Center
Proposed Problem
Click the figure below to see the complete problem 407 about Circle, Angle, Tangent, Perpendicular, Secant, Radius, Center.
See also:
Complete Problem 407
Level: High School, SAT Prep, College geometry
Puno interactive map and Puno Querido by William Luna
Video
Puno is a city in southeastern Peru, located on the shore of Lake Titicaca. It is known as the folkloric capital of Peru due to its wealth of artistic and cultural expressions, particularly dance.
Click the figure below to view the video.
See more:
Puno interactive map and video
Wednesday, December 23, 2009
Problem 406. Right triangle, 15 degrees, Midpoints, Congruence
Proposed Problem
Click the figure below to see the complete problem 406 about Right triangle, 15 degrees, Midpoints, Congruence.
See also:
Complete Problem 406
Level: High School, SAT Prep, College geometry
Tuesday, December 22, 2009
Saturn and Geometry
Index
Click the figure below to view the Index.
See more:
Saturn and Geometry Index
How would the Earth look like if it had a ring system like Saturn?
Video
3ds Max animation.
Click the figure below to view the video.
See more:
How would the Earth look like if it had a ring system like Saturn?
Sunday, December 20, 2009
Problem 405. Quadrilateral, 60, 75, and 135 degrees, Midpoint
Proposed Problem
Click the figure below to see the complete problem 405 about Quadrilateral, 60, 75, and 135 degrees, Midpoint.
See also:
Complete Problem 405
Level: High School, SAT Prep, College geometry
Saturday, December 19, 2009
Haul trucks: Extreme Machines - Mega Trucks, Komatsu 930E
They are used strictly off-road for mining and heavy dirt hauling jobs.
The Komatsu 930E is an Ultra Class off-highway hauler built by Komatsu. It is notable for being one of the largest models of trucks ever manufactured.
Click the figure below to see the video.
See more:
Haul trucks: Extreme Machines - Mega Trucks, Komatsu 930E
Toquepala, Open Pit Mining Operation, Komatsu 930E
Toquepala is a porphyry copper deposit in the southern sierra, inland from the port of llo. It is worked as an open pit.
The Komatsu 930E is an Ultra Class off-highway hauler built by Komatsu. It is notable for being one of the largest models of trucks ever manufactured.
Click the figure below to see the video.
See more:
Toquepala, Open Pit Mining Operation, Komatsu 930E
Friday, December 18, 2009
Adding technology to geometry class improves opportunities to learn
A new study co-written by a University of Illinois expert in math education suggests that incorporating technology in high school-level geometry classes not only makes the teaching of concepts such as congruency easier, it also empowers students to discover other geometric relationships they wouldn’t ordinarily uncover when more traditional methods of instruction were used.
Click the figure below to view the study.
See more:
Technology in geometry class
Jenn 3D Software, Mind Map
Jenn 3D is a free software license program (C++/OpenGL) for visualizing regular polytopes in stereographic projection.
Graphic organizers are visual representations of knowledge, concepts or ideas.
Click the figure below to see the Interactive Mind Map.
See also:
Jenn 3D Software, Mind Map, Interactive Mind Map
Concurrent Lines, Theorems and Problems
Index
Click the figure below to see the Concurrent Lines, Theorems and Problems Index
See more:
Concurrent Lines, Theorems and Problems
Level: High School, SAT Prep, College geometry
Thursday, December 17, 2009
Problem 404. External Equilateral triangles, Congruent and Concurrent Lines
Proposed Problem
Click the figure below to see the complete problem 404 about External Equilateral triangles, Congruent and Concurrent Lines.
See also:
Complete Problem 404
Level: High School, SAT Prep, College geometry
Median of a Trapezoid, Theorems and Problems
Index
Click the figure below to see the index.
See more:
Median of a Trapezoid, Theorems and Problems
Leonardo da Vinci Polyhedra and Jenn 3D tool
Index
Leonardo da Vinci (1452-1519) was a great lover of geometry. His most outstanding polyhedral accomplishment is the illustrations for Luca Pacioli's 1509 book The Divine Proportion.
Jenn 3D is a free software license program for visualizing regular polytopes in stereographic projection.
Click the figure below to see the index.
See more:
Da Vinci dodecahedron and Jenn 3D tool
Da Vinci dodecahedron and Jenn 3D tool for visualizing Coxeter polytopes
Leonardo da Vinci (1452-1519) was a great lover of geometry. His most outstanding polyhedral accomplishment is the illustrations for Luca Pacioli's 1509 book The Divine Proportion.
Jenn 3D is a free software license program for visualizing regular polytopes in stereographic projection.
Click the figure below to see the illustration.
See more:
Da Vinci dodecahedron and Jenn 3D tool
Wednesday, December 16, 2009
Da Vinci icosahedron and Jenn 3D tool for visualizing Coxeter polytopes
Leonardo da Vinci (1452-1519) was a great lover of geometry. His most outstanding polyhedral accomplishment is the illustrations for Luca Pacioli's 1509 book The Divine Proportion.
Jenn 3D is a free software license program for visualizing regular polytopes in stereographic projection.
Click the figure below to see the illustration.
See more:
Da Vinci icosahedron and Jenn 3D tool
Da Vinci octahedron and Jenn 3D tool for visualizing Coxeter polytopes
Leonardo da Vinci (1452-1519) was a great lover of geometry. His most outstanding polyhedral accomplishment is the illustrations for Luca Pacioli's 1509 book The Divine Proportion.
Jenn 3D is a free software license program for visualizing regular polytopes in stereographic projection.
Click the figure below to see the illustration.
See more:
Da Vinci octahedron and Jenn 3D tool
Da Vinci Cube and Jenn 3D tool for visualizing Coxeter polytopes
Leonardo da Vinci (1452-1519) was a great lover of geometry. His most outstanding polyhedral accomplishment is the illustrations for Luca Pacioli's 1509 book The Divine Proportion.
Jenn 3D is a free software license program for visualizing regular polytopes in stereographic projection.
Click the figure below to see the illustration.
See more:
Da Vinci cube and Jenn 3D tool
Da Vinci tetrahedron and Jenn 3D tool for visualizing Coxeter polytopes
Leonardo da Vinci (1452-1519) was a great lover of geometry. His most outstanding polyhedral accomplishment is the illustrations for Luca Pacioli's 1509 book The Divine Proportion.
Jenn 3D is a free software license program for visualizing regular polytopes in stereographic projection.
Click the figure below to see the illustration.
See more:
Da Vinci tetrahedron and Jenn 3D tool
Circular Sector Theorems and Problems
Click the figure below to see the Circular Sector Theorems and Problems - Index.
See also:
Circular Sector Theorems and Problems
Level: High School, SAT Prep, College geometry
Problem 403. Circular sector, 90 degrees, Circle, Semicircle, Area
Proposed Problem
Click the figure below to see the complete problem 403 about Circular sector, 90 degrees, Circle, Semicircle, Area.
See also:
Complete Problem 403
Level: High School, SAT Prep, College geometry
Tuesday, December 15, 2009
Kaleidoscope based on Several Circles (1926) by Wassily Kandinsky
Kaleidoscope
Several Circles. 1926. Oil on canvas. 140 x 140 cm. The Solomon R. Guggebheim Museum, New York, NY, USA.
Click the figure below to see the interactive illustration.
Continue reading at:
Several Circles (1926) by Wassily Kandinsky
Inca exhibition in Seoul, Korea
National Museum of Korea
The Inca civilization, which flourished for hundreds of years and left behind priceless archeological artifacts, will be revived in Seoul.
Period: December 11, 2009 - March 28, 2010.
Click the figure below to view: "The Great Myth and Mystery of Peruvian Civilization." and explore Korea, Seoul interactive map. Take advantage of the pan and zoom bars to go to Machu Picchu placemark.
See more:
Inca exhibition in Seoul, Korea
Monday, December 14, 2009
Spring 2009 Reveals Saturn's Hexagon Jet Stream
Video
The hexagon was hidden in darkness during the winter of Saturn's long year, a year that is equal to about 29 Earth years. But as the planet approached its August 2009 equinox and signaled the start of northern spring, the hexagon was revealed to Cassini's cameras.
Click the figure below to view the interactive illustration.
See more:
Spring Reveals Saturn's Hexagon Jet Stream
The Mystery Hexagon on SATURN
Video
North polar hexagonal cloud feature, discovered by Voyager 1 and confirmed in 2006 by Cassini.
Click the figure below to view the video.
See more:
The Mystery Hexagon on SATURN
Sunday, December 13, 2009
Math Music: A Shepard Tone
Video
A Shepard tone, named after Roger Shepard, is a sound consisting of a superposition of sine waves separated by octaves.
Click the figure below to view the video.
See more:
Math Music: A Shepard Tone
Math Music: Spectrogram of Beethoven Sonata
Video
The strong affinity between mathematics and music is the subject of "Music: Broken Symmetry, Geometry, and Complexity", by Gary W. Don, Karyn K. Muir, Gordon B. Volk, and James S. Walker.
Click the figure below to view the video.
See more:
Spectrogram of Beethoven Sonata