| American_Communications_Foundation_Newsource__Science_&_Technology Assists the commercial broadcast news media in its coverage of science and technology, which is often under-reported because of staffing and budgetary restraints. Enhances the coverage by providing re |
| Animonautes Production of 3D media to offer learning experiences in medicine, biology, astronomy and technology. Page includes sample videos. |
| ANOVA_Science_Education Services public and private school districts and schools on the continental USA and in Hawaii through teacher and administrator seminars and workshops. |
| Asia_Link_program__MUMA_project A training project dedicated to improve the quality of higher education for heritage management in Asia and Europe. The project runs from March 2004 to August 2006. |
| Ask_Dr__Jekyl_and_Mr__Hyde Answers to a variety of science and technology questions, including questions you never thought to ask. |
| Athena NASA page features earth and space science resources for K-12 and teachers. Included are class exercises with data collecting and background information for each topic, as well as related links. |
| Attaining_Excellence_Through_TIMSS Resources for learning about and discussing the Third International Mathematics and Science Study, including related reports, data and commentaries. |
| BBC_Science_&_Nature Information about humans, animals, space, the planet Earth and various hot topics. Includes TV listings, Listen Again online radio, news reports, quizzes, picture galleries and games. |
| Berkshire_Biological_Supply_Company Online sale of living organisms for biology class, science fair projects, home teaching. |
| BETR_World_Science_and_Computer_Education Offering information on classes and camps for science and computer education in Maryland and Virginia. |
| Beyond_Discovery A series of articles that trace the origins of important recent technological and medical advances. Each story reveals the crucial role played by basic science. |
| Bill_Nye_the_Science_Guy Online science laboratory. Includes learning activities and show information. |
| Brainium A curriculum-based, online environment where teachers and students can share ideas, experiments and activities. |
| The_Bubblesphere All about soap bubbles. Bubble blowing, solutions, history, fun, Java games, bubble machines and trivia. |
| Candis_Mitchell\'s_Science_Teacher\'s_Site Designed to help educators search for internet material appropriate for their classrooms. |
| Cornell_Theory_Center_Math/Science_Gateway Links to resources in mathematics and science for educators and students in grades 9-12. |
| Cute_Science Learning materials for include coloring books, audio lectures, videos and workbooks. Subjects covered are math, science, and HTML. Includes product list and online order form. |
| Department_of_Energy_Science_Education_Programs Internship and fellowship opportunities for undergraduate students and teachers related to science, technology, engineering, and mathematics. |
| Did_You_Ever_Wonder? Each month a dozen questions are posed and answered by lab scientists on various topics on how things work in the natural world. |
| Dive_and_Discover__Expeditions_to_the_Seafloor An interactive distance learning web site designed to immerse your students in the exciting process of deep-sea research and exploration. |
| Dr__Carlson\'s_Science_Theater Video podcast of cool science demonstrations. |
| Dr__Fred\'s_Place Children's science author, Dr. Fred Bortz, including biographical information, list of books, FAQ's, and information about school visits. |
| Ed_Quest Includes guided links for students, lesson plans and references for teachers, as well as collaborative projects directed towards the middle school level. |
| Education_Links_-_Top_rated_educational_sites_ Collection of educational resources separated into categories such as astronomy, lesson plans, math, and webquests. |
| Educational_Resources_Catalog In addition to the catalog itself, links are provided to curriculum materials, professional development, software, visual and audiovisual classroom support, print material and online resources. |
| Elementary_Science_Program Includes activity of the month for students and teachers of elementary science, as well as an archive of past activities, and resources. |
| The_ENC_Digital_Dozen Each month the Eisenhower National Clearinghouse selects a dozen useful math and science sites for teachers and students. Includes archives. |
| EOA_Scientific_Internet_Campus Find educational information and interactive multimedia resources in earth science,geology,oceanography,space science, astronomy, physical science, and remote sensing. |
| ERIC_Clearinghouse_for_Science,_Mathematics,_and_Environmental_Education Goal is to provide access to information for teaching and learning about science, mathematics, and the environment. |
| Every_Child_a_Scientist For those who want to take an active role in improving the science program in their schools. |
| Extreme_Science Science news and activities with an emphasis on extremes. |
| Field_Trips Includes virtual science tours on nature topics. Includes related educational resources. |
| FizzBang_Science Hands-on science books written by a high school teacher. Includes online shopping and sample experiments. |
| Frank_Potter\'s_Science_Gems Resources are sorted by category and grade level. |
| Free_Science_Worksheets Features over science labs for biology, chemistry, and physics, and numerous other printable note skeletons, graphic organizers, and worksheets. |
| Fun_With_Science A professional geophysicist maintains this collection of resources for classroom demonstrations and hands-on exercises about physics, earth science, earthquakes, math and fun illusions. Includes video |
| The_Gender_&_Science_Digital_Library_(GSDL) Aims to provide digital resources to help educators promote interest and engagement with STEM (science, technology, engineering and mathematics) topics for learners of all ages, particularly females. |
| The_GLOBE_Program A worldwide hands-on, primary and secondary school-based education and science program. |
| The_Great_Web_of_Science Providing links for science, astronomy, biology, chemistry, electronics, medicine, meteorology, oceanography,physics and space. |
| Harvard-Smithsonian_Center_For_Astrophysics_-_Science_Education_Department Develops curricula, videos and activities to enhance learning of scientific topics. Includes list of projects and staff. |
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Prime numbers provide a rich source of speculative mathematicalideas. Some of the mystical atmosphere that surrounds them can betraced back to Pythagoras and his followers who formed secretbrotherhoods in Greece, during the 5th Century BC. The Pythagoreansbelieved that numbers had spiritual properties. The discovery that somenumbers such as the square root of 2 cannot be expressed exactly as theratio of two whole numbers was so shocking to Pythagoras and hisfollowers that they hushed up the proof!Today, prime numbers are fascinating but they are also of commercialimportance, since the best commercial and military ciphers depend ontheir properties. (See "Discovering new primes" in Issue 1 - it is yet to be proved that there areinfinitely many Mersenne primes.)Here is another unproved conjecture about prime numbers. It iscalled the Goldbach conjecture and may be stated as follows: 
For example: 8 = 3 + 5. Both 3 and 5 are prime numbers.20 = 13 + 7 = 17 + 3.42 = 23 + 19 = 29 + 13 = 31 + 11 = 37 + 5.Notice that there can be more than one Goldbach pair. The conjecturesays only that there is at least one, and has nothing to say aboutwhether there may be more.You can explore the Goldbach conjecture yourself with this Goldbachcalculator. Simply enter an even integer, n, greater than 4 andthe calculator will find all the Goldbach pairs.Historical NoteChristian Goldbach (1690-1764) was a Prussian amateur mathematicianand historian who lived in St Petersburg and Moscow. He made hisconjecture in a letter to Leonhard Euler, who at first treated theletter with some disdain, regarding the result as trivial. Goldbach'sconjecture, however, remains unproved to this day.Further readingFor an entertaining and revealing introduction to this problem, seeDouglas R Hofstadter's book "Gödel, Escher, Bach" (Penguin Books1979, ISBN 0 14 00 5579 7), especially the section "Aria with DiverseVariations" following chapter XII. Download PDF version | Printer friendly version Return to article contact copyright info sponsors privacy info 
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