There are separate categories for many different branches of science. Please submit your site to the most appropriate category. Submitting to an incorrect category may delay review of your site.University faculties and departments and academic institutions devoted to the study of engineering.
Please submit only websites that have English language content to this category and its subcategories. If your site is in a language other than English, please submit it to the appropriate category of World.
Please submit your site to the most appropriate category. Submitting to an incorrect category may delay review of your site.Acoustics is the interdisciplinary science that deals with the study of sound, ultrasound and infrasound, all mechanical waves in gases, liquids and solids respectively.
Please submit only websites that have English language content to this category and its subcategories. If your site is in a language other than English, please submit it to the appropriate category of World.
1. Sites in languages other than English should be submitted to appropriate World category as listed under the heading "This category in other languages."This category covers the arts, sciences, and technology of aeronautics and astronautics.2. This category is intended to service aerospace technical professionals and academia. Any non-commercial or commercial sites that deal with aerospace technologies and that are of general use to this community of professionals are acceptable.
3. This category differs from the Science/Technology/Space category in that the latter will also include many sites of interest to amateur space enthusiasts and lay people. This category and the space category may duplicate some listings for the major resources (such as NASA), but the goal is to minimize this duplication and cross-reference where possible.
4. Sites relating to the natural world beyond the earth, and the instruments used to study it, should be submitted to Science/Astronomy.
5. Sites relating to the study of weather and atmospheric phenomena should be submitted to either Science/Earth_Sciences/Meteorology or Science/Earth_Sciences/Atmospheric_Physics.
Please submit your site to the most appropriate category. Submitting to an incorrect category may delay review of your site.Biomedical engineering is the application of engineering principles and techniques to the medical field. It combines the design and problem solving skills of engineering with medical and biological sciences to improve healthcare diagnosis and treatment.
Please submit only websites that have English language content to this category and its subcategories. If your site is in a language other than English, please submit it to the appropriate category of World.
Please submit your site to the most appropriate category. Submitting to an incorrect category may delay review of your site.Chemical engineering is the branch of engineering that deals with the application of physical science and life sciences with mathematics, to the process of converting raw materials or chemicals into more useful or valuable forms.
Please submit only websites that have English language content to this category and its subcategories. If your site is in a language other than English, please submit it to the appropriate category of World.
It largely involves the design, improvement and maintenance of processes involving chemical or biological transformations for large-scale manufacture.
The category has a number of specific sub categories. Please take the time to review these and ensure your submission is placed in the category most suited to your site .This category is where information related to the science and practice of civil engineering goes. All businesses that provide civil engineering services as their primary goal go into Business/Industries/Engineering/Civil. Products and services of interest to the civil engineering community will be listed in the interim in Products and Services, but will be moved to a Business category soon.Suppliers of products or services should submit their sites to an appropriate category in our Business section. Specific links to which can usually be found as an @linked sub category of this main category, or in the list of related categories.
Please submit only sites which have some lasting value, such as proceedings, slides, reports or photographs.Conferences, meetings and workshops are an important part of the technological enterprise. Most conferences fit in a category for conferences in a specific area of technology. These categories are listed as links from the Science:Technology:Conferences category, which also lists sites for broad-spectrum scientific meetings and for organizations that conduct meetings in a wide range of fields.
Please submit sites here which concern companies which offer the service of immersing metals and other materials in liquid nitrogen in order to increase their wear, or similar "dry" techniques which use liquid nitrogen temperatures without actual immersion. Also submit sites here for companies which manufacture such systems.This category includes all aspects of Cryogenics: the production and study of extreme sub-zero temperatures. This includes the production, use, and storage of liquid gases (nitrogen, oxygen, helium), mechanical freezers for those temperatures, and the attempts to reach absolute zero. It also includes a recent use of cryogenic technology in which metals are dipped in liquid nitrogen to improve various qualities.
Please submit only websites that have English language content to this category and its subcategories. If your site is in a language other than English, please submit it to the appropriate category of World.The essential goal of cybernetics is to understand and define the functions and processes of systems that have goals and that participate in circular, causal chains that move from action to sensing to comparison with desired goal, and again to action. Studies in cybernetics provide a means for examining the design and function of any system, including social systems such as business management and organizational learning, including for the purpose of making them more efficient and effective.
There are separate categories for Directories in many of the different branches of science.Organized collections of links to internet resources related to engineering topics.
Please submit your site to the most appropriate category. Submitting to an incorrect category may delay review of your site.
Please submit only websites that have English language content to this category and its subcategories. If your site is in a language other than English, please submit it to the appropriate category of World.
Please submit only sites in English that comply with the Category Description. Sites written in other languages should be submitted to an appropriate category of the World branch instead. Sites that are meant for users in a particular region belong to the Regional branch. If they appeal to global users but correspond to a region, we recommend you submit them to both this and a regional category. Don''t submit commercial sites to this category. Company websites belong to their most proper category in the Business branch. Sites that sell products online belong to their most adequate one in the Shopping branch. When submitting a site, please use a name and a description that are appropriately informative and objective, with no hype.This category is about the theory, practice and study of Electrical Engineering, a very broad field ranging from all aspects of information processing to power production and distribution. Its main topics are electronics (including micro, opto and power electronics), communication technology, automation control, computer vision, and energy technology. It does not include commercial sites, which can be found in the Business branch (e.g., Business: Electronics_and_Electrical: Engineering: Product_Development).
Please submit only online publications (news and information websites, ezines, newsletters, full-text books, etc) dealing with any aspect of electronics. Summary and subscription application pages of subscription-only journals are acceptable, but not adverts/summaries of books unless full text is available for download. English language publications only, please.The Science/Technology/Electronics category is intended for listings of sites directly related to electronics technology, including the design, repair and use of electronics equipment. This category does not include listings of actual manufacturers, distributors, or repair and service businesses which should instead be listed in appropriate categories elsewhere in the directory. Please do not submit sites to the main category - new submissions should be made only to the most appropriate subcategory. Sites in languages other than English should be submitted to the appropriate language category in the World/ directory structure.
This category is intended for science oriented site content. Please submit sites primarily selling products online to the most appropriate category within the Shopping branch as they will not be listed here.In general, the concept of energy refers to the potential for causing changes. In physics, energy is the ability to do work and has many different forms (potential, kinetic, electromagnetic, etc.) No matter what its form, physical energy has the same units as work; a force applied through a distance. The SI unit of energy, the joule, equals one newton applied through one meter.
Before submitting a site, be sure to read the corresponding category description.
Please submit to an appropriate subcategory, if one is available. Otherwise, submit here. Failure to submit to the most specific appropriate category can delay the consideration of your submission.
For more information, please refer to the DMOZ Science FAQ.
Topics for this category include energy resources, energy utilization technologies, technology research and technical innovations, and analytical aspects of energy policy.
Sites intended to influence opinion, for example, about irradiation of food, should be submitted to Society/Issues/Health/Food,_Drink_and_Nutrition/ or Society/Issues/Environment/Food_and_Drink/. Genetically-modified food has its own category at Society/Issues/Science_and_Technology/Biotechnology/Genetics/Genetically_Modified_Food/.If a site is primarily about technology transfer, applied research or partnerships with the food industry, it should be submitted to Business/Food_and_Related_Products or an appropriate sub-category.
Sites about the nutritional values of foods and their contribution to a balanced diet, or public service information about food safety, should be submitted to Home/Consumer_Information/Food_and_Drink/ or one of the related categories.
Sites concerned with the relationship between diet and health should be submitted to Health/Nutrition/ or one of its sub-categories.
Utilization of food by the body is covered by Health/Nutrition/ or Health/Conditions_and_Diseases/Nutrition_and_Metabolism_Disorders/.
If your site is not in English, please submit to Food Science is the study of the production, transport, storage, processing, preparation and presentation of food, and this category is for sites giving an overview of the subject.
This is a category for reference sites, definitions, and case studies relating to Industrial Engineering. Only informational sites will be listed.
Only sites in English are listed here. If your site has an English version give the URL of that version. Sites in other languages should be submitted to the language category under Industrial engineering is the application of engineering methods and the principles of scientific management to the design, improvement, and installation of integrated systems of people, materials, information equipment and energy.
Please determine if your submission should be in a sub-category of invention and innovation.Web sites about invention or innovation in the broad area of technology.
The art and science of lighting design and illumination. This includes all the fields of architectural, movie, theater, and show lighting, as well as combinations thereof.The art and science of lighting design and illumination. This includes all the fields of architectural, movie, theater, and show lighting, as well as combinations thereof. Current subcategories include Daylighting, Associations, Magazines and EducationPlease submit sites here that inform about the technology, methods and tools used by the lighting designer and other background material. Please also consider if you might better submit a more specific site to one of the subcategories Daylighting, Associations, Magazines or Education instead.
Please do NOT submit sites about lighting products here. There are categories in the Business tree of the directory that are better suited for this purpose, like: Business/Arts_and_Entertainment/Tools_and_Equipment/Lighting OR Business/Construction_and_Maintenance/Materials_and_Supplies/Electrical/Lighting or one of the subcategories.
Please submit only sites that deal with new approaches and developments in improving the quality or speed of the manufacturing process.Research and development activities on the technology of manufacturing and advances in methods for manufacturing processes. These can be from academia, government or industry, however they should generally be something new or innovative.Some examples of these are product development, prototyping, and virtual reality applications.
Sites related to specific technologies involved in manufacturing should be submitted to appropriate categories, such as categories for materials science, chemical engineering, mathematical modeling, quality engineering, and CAD/CAM.
Sites for manufacturers will not be listed here. Submit to the applicable category in Business.
Suppliers of products or services should submit their sites to the Industrials Materials or the Testing Instrument and Supplies category.Material science is concerned with understanding the properties of materials and how to create new ones.
Please submit company web sites under Business:Industries:Engineering and Business:Industries:Manufacturing as appropriate. Note that categories with an ''@'' at the end of their names are actually cross references to other categories in the Open Directory, and are not formally part of the ''Mechanical Engineering'' category.The branch of engineering concerned with the design, manufacture, installation, and operation of engines, machines, and manufacturing processes. It involves the application of dynamics, control, thermodynamics and heat transfer, fluid mechanics, strength of materials, material science, tribology, mathematics, and computation.This category is intended for information about the field of mechanical engineering such as technical data sources, academic departments and professional societies.
Please check that your site is not purely describing a company manufacturing tools, or directly servicing industry.
If it is, it should be submitted to Business/Industrial_Goods_and_Services/Machinery_and_Tools/Industrial_Metrology.
Metrology is the scientific study of measurement.
Legal metrology is the part of metrology where regulations are implemented in order to ensure an appropriate level of credibility in measurement results, whenever conflicting interests exist, or when incorrect measurement results may adversely affect individuals or society itself.
- (Not to be confused with meteorology
- the study of the processes and phenomena of the atmosphere, especially as a means of forecasting the weather.)
Please submit sites that provide content on the principles of science as they apply to military technology and/or technical explanations of military technology.This category covers the principles of science as they apply to military technology, and technical explanations of military technology.Defense contractor sites should be submitted to Business: Aerospace and Defense/.
Defense contractor sites should be submitted to Business: Aerospace and Defense/.
Websites for mining businesses should be submitted to an appropriate category of Business/Mining_and_Drilling.Includes websites about mining engineering, informational sites about mining equipment and technology and related topics.
To these categories, please submit only sites related to nanotechnology.Nanotechnology: a general term covering nanoscale science and engineering. A more narrow definition is miniaturization engineering at the nanometer scale. Nano is a metric prefix meaning 'billionth', in this case, science, technology, and engineering at sizes measured in billionths of a meter, which is 1,000 times smaller than a micrometer. It is proposed to build electronic and mechanical devices which are made of very tiny parts (as are biotic systems), but which may have very large effects (as do biotic systems).
There are separate categories for many of the different branches of technology.Home pages of people where the majority of the subject matter is related to more than one branch of technology.
Please submit your site to the most appropriate category. Submitting to an incorrect category may delay review of your site.
Please submit only websites that have English language content to this category and its subcategories. If your site is in a language other than English, please submit it to the appropriate category of World.
Please only submit pages with a serious content and responsible character.Sites that contain information and theory of pyrotechnics, ballistics, and explosives.Please provide your full email address so we can contact you.
The "Anarchist''s Cook Book" is not a suitable submission.
Neither is any site advocating the over throw of any government.
Sites about "burning things up" or fire or "Molotov Cocktails" no matter how slick will not be accepted.
Commercial sites listing fireworks or pyrotechnic material for sale or distribution are not accepted.
Please submit your site to the most appropriate category. Submitting to an incorrect category may delay review of your site.Quality Engineering attempts to illuminate the economic significance of quality problems and determine methods of solving them independent of the production process. It differs from quality control, which is used during the production process to affect quality. Quality Engineering is concerned with variety and quality; variability loss and tolerance; determining tolerances; tolerance design and experimental design; off-line quality control; parameter design and tolerance design; and the design of experiments.
Please submit only websites that have English language content to this category and its subcategories. If your site is in a language other than English, please submit it to the appropriate category of World.
Please submit your site to the most appropriate category. Submitting to an incorrect category may delay review of your site.Reliability engineering is an engineering field that deals with the study of reliability, the ability of a system or component to perform its required functions under stated conditions for a specified period of time.
Please submit only websites that have English language content to this category and its subcategories. If your site is in a language other than English, please submit it to the appropriate category of World.
This category is for sites dealing with the science and technology of safety engineering. Suppliers of products or services should submit their sites to an appropriate category in our Business section. Specific links to which can usually be found as an @linked sub category of this main category, or in the list of related categories.Submission Tips:
- When writing your site''s title please ensure it is the same as your site or organization.
- When writing your site''s description, please tell what your site offers in a clear and concise statement without hype or promotional language.
Thank-you for your cooperation.
Please submit your site to the most appropriate category. Submitting to an incorrect category may delay review of your site.
Please submit only websites that have English language content to this category and its subcategories. If your site is in a language other than English, please submit it to the appropriate category of World.
Please submit your site to the most appropriate category. Submitting to an incorrect category may delay review of your site.Sanitary engineering is the application of scientific or mathematical principles to the field of sanitation, especially in regards to its effect on public health. It includes the design of sewers, sewage treatment and waste water treatment facilities, recycling centers and public landfills. It also includes such things as a plan of action to reverse the effects of water pollution or soil contamination.
Please submit only websites that have English language content to this category and its subcategories. If your site is in a language other than English, please submit it to the appropriate category of World.
When submitting a site, please submit to the discipline sub-category (Aerospace, Chemical, Civil, etc.) for which the software was designed. If a suitable sub-category does not exist, please suggest one. Note: Submissions to sub-categories are usually listed more quickly than submissions to the general Software for Engineering category.Documentation and purchase information for software that is useful for engineers.
Astronomical images go to Astronomical Images and related categories.The science and technology of the study and exploration of space.
Structural engineering is the field of engineering dealing with the analysis and design of structures that support or resist loads. It involves the design of buildings and large nonbuilding structures. This category is for sites providing information about structural engineering with an emphasis on building codes, standards and current research.Companies selling products for use by structural engineers should submit their listings in the Business category. Business/Industrial_Goods_and_Services/Engineering/Structural/ is probably the most appropriate.
Consultants should submit to the appropriate consulting sub-category under Business. e.g. Consulting
Please submit your site to the most appropriate category. Submitting to an incorrect category may delay review of your site.
Please submit only websites that have English language content to this category and its subcategories. If your site is in a language other than English, please submit it to the appropriate category of World.
Please submit only sites related to television technology (such as standards, theories, presentations, history, organizations, etc.).There is currently no description created for this category.Commercial sites (such as sites selling/describing broadcast or receiver products) will not be added to this category. These sites should be submitted to the appropriate Business category.
Please submit your site in Media Production if you produce for television or offer services closely related to television production.
If you are a manufacturer of components or products related to television, apply for a listing at Electronic Manufacturing.
For sites related to broadcast journalism information, news and issues, apply for a listing at News/Media/Broadcast or at News/Media/Industry_News.
Submit informative sites that describe the various technologies that are used to transport goods and people.There is currently no description created for this category.
Commercial sites should be submitted to the appropriate Business category, such as
Business/Transportation_and_Logistics
This category is for sites dealing with the science and technology of welding.This category is for sites dealing with the science and technology of welding. Suppliers of products or services should submit their sites to an appropriate category in our Business section. Specific links to which can usually be found as an @linked sub category of this main category, or in the list of related categories.
Sites with no welding technical content or employment information will not be listed here.
Business, industrial, or sales sites should be submitted to an appropriate Business category.
- Open Directory Business: Industrial Goods and Services: Engineering
- Open Directory Computers: News and Media: Weblogs
- Open Directory Home: Consumer Information: Electronics
- Open Directory Science: Methods and Techniques