| Symmetry_and_the_Shape_of_Space With interactive demos using Geometer's Sketchpad (requires Macintosh). |
| Symmetry_and_the_Shape_of_Space Chaim Goodman-Strauss, Arkansas. With interactive demos using Geometer's Sketchpad (requires Macintosh). |
| TESS Tessellation software. 11 rosette, all 7 frieze and all 17 wallpaper groups included. |
| Tessellated,_Interlocking_Concrete_Pavers_and_Molds Pictures of some concrete tilings. |
| Tessellating_Wallpaper_Patterns Original tessellating desktop wallpaper tiles. |
| Tessellation_and_Photography A study for the endless possibilities of tessellating the plane based on the work of Dutch graphic artist M.C. Escher. |
| Tessellation_Links Compiled by Suzanne Alejandre for the Math Forum. |
| Tessellation_Tutorials_by_Suzanne_Alejandre Tutorials and templates for making tessellations using ClarisWorks, the Geometer's Sketchpad, HyperCard, HyperStudio, and straightedge and compass, including step-by-step instructions for classroom |
| Tessellations A company selling foam puzzles, many based on planar tessellations (tilings) and fractals. |
| Tessellations__Technology_and_Culture Examples and Java applets. |
| Tessellations_Using_Geometer\'s_Sketchpad Description of a class project. |
| Tessellations_with_Java Examples and source code. |
| Tiling_Plain_and_Fancy Tiling from the mathematical and historical viewpoint by Steve Edwards. Provides a number of examples of various types of tiles that tile the plane and includes periodic tiling plus Penrose's aperiod |
| Tilings_and_Geometric_Ornament Applying principles of computer graphics to the creation of geometric ornament, as a continuation of the tradition of ornamental design using modern tools and algorithms. |
| Totally_Tessellated An introduction to tessellations explaining the basic underlying mathematics, and with many examples from real life. |
| 17_Wall_Paper_Symmetry_Groups_to_Create_a_Regular_Division_of_the_Plane Graphics. |
| Wallpaper_Groups Images and descriptions of the 17 plane symmetry groups. |
| William\'s_Geometric_Construction_Page Activities to create patterns using simple resources, such as making equilateral triangle from a circle. Suitable for upper primary and lower secondary ages. |
| Aanderaa_Instruments Instruments and Sensors for Land, Sea and Air |
| Adcon_Telemetry_GmbH Provide meteorological sensors, but specialty is wireless telemetry. |
| Advanced_Designs_Corp_ Doppler Weather Radar and Weather Data Displays, Doppler Radar, Weather Radar, Doppler, Radar |
| Advanced_Sensing_Products ASP is a manufacturer standard PRTs, precision RTDs, and different types of thermocouples. |
| Alltec_Corp_ A manufacturer of lightning protection and grounding systems. |
| AllWeatherInc A source of weather sensors, environmental monitoring systems, data collection products, and display and recording devices. |
| Applied_Technologies,_Inc_ Manufacturer and supplier of scientific instrumentation, software, and systems for meteorological and atmospheric research. |
| Atmospheric_Radar_Systems_(ATRAD) Atmospheric Radar systems for scientific and commercial applications. |
| Axinum_Innovations_&_Technologies Manufacture of Siphoning Rain Gauges and Data Loggers |
| B__K__Consimpex_Meteorological_Systems Satellite remote sensing & metereological system integrators in India. |
| Belfort_Instruments Offer a variety of weather instruments for the measurement of Wind, Precipitation, Temperature, Humidity, Pressure, and Visibility. |
| BOLTEK A leader in affordable thunderstorm tracking technology and Lightning Detection Systems. |
| Campbell_Scientific_Ltd_ Professional weather monitoring products, including a full line of automated, research-grade weather stations. |
| Casella_CEL Manufacturer and supplier of meteorological equipment, weather stations, rain gauges, solar equipment and wind speed and direction. |
| Climatronics_Corp_ Meteorological systems for ambient surface and upper air weather stations and networks. Offering sensors for wind, temperature, humidity, rainfall, pressure, solar, ice, clouds and visibility. |
| Coastal_Environmental_Systems Coastal Environmental designs and manufactures weather stations, meteorological, environmental monitoring instrumentation, and data acquisition systems. |
| Columbia_Weather_Systems Makers of the Capricorn weather stations. Systems include wind speed and direction, temperature, barometric pressure, humidity, rainfall, leaf wetness, solar radiation and soil moisture. |
| Comptus_Inc_ Manufacturer of meterological instruments for measuring wind, rain, snow and other weather elements. |
| Corr-Tek_Idrometria Environmental Monitoring: Products for Sampling and Monitoring Water |
| Davis_Instruments_Corp_ Weather instrumentation for amateur and commercial boaters, farmers, meteorologists, hobbyists. Introductory Flash option. |
| Diplex_Instruments Manufacture, import and distribute meteorological and scientific instruments. Specialist in thermometers. |
| DWC_(Danish_Wind_Controller_A/S) Rugged wind sensors for critical environmental conditions. |
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