sciences
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Current count: 2379 samples , 118 elements , 471 minerals , 14 stories , 1711 rotatable images , 1536 smooth rotations , 78 videos , 47 sounds . This website documents, in great depth, a large collection of chemical elements and examples of their applications, common and uncommon.
The Wooden Periodic Table Table
Halbach array - Wikipedia, the free encyclopedia
A Halbach array, showing the orientation of each piece's magnetic field. This array would give a strong field underneath, while the field above would cancel. The flux diagram of a Halbach array
Our Monte-Carlo calculator MUSE (Measurement Uncertainty Simulation and Evaluation) is now OpenSource.
Uncertainty analytical
Une classification en a été donnée à la fin des années 1960 par Heinrich Heesch, mais elle aboutissait à un nombre important de cas, certains pouvant être vus comme cas particuliers d'autres. Son travail a fait l'objet de simplifications dans un mémoire de Me Geneviève Dufey que j'ai dirigé en 1984.
M.C.Escher - Pavages du plan - Mathématique du secondaire
In February 1975, Deborah Jean Warner, a Curator of Physical Science at the National Museum of American History, called me to ask if Kenyon had any historical physics teaching apparatus. I looked around my office, and reeled off the names of four or five good pieces of apparatus that I was using in my lectures. The next month I was at the Smithsonian, exploring the collection and photographing some of it in black and white and in color.
Historical Physics Teaching Apparatus
Electronique
Middle School Physical Science Resource Center
The purpose of this grant was to review and critique the physical science in Middle School (grades 6, 7, and 8, although some schools called Junior High designate grades 7, 8, and 9) science textbooks with regard to the scientific accuracy, adherence to an accurate portrayal of the scientific approach, and the appropriateness and pedagogic effectiveness of the material presented for the particular grade level.We also noted such things as readability, attractiveness, quality of illustrations, and whether material such as laboratory activities, suggested home activities, exercises to test understanding, and resource suggestions where considered appropriate.Surface station
Surfacestations project reaches 82.5% of the network surveyed. 1007 of 1221 stations have been examined in the USHCN network.
Statistics
Soit X une variable aléatoire discrète. L' espérance de X , notée E [ X ], est la somme pondérée des valeurs du domaine de X , les "poids" étant égaux, par définition, aux probabilités des valeurs correspondantes.Below are some selected values of temperature and the saturated vapor pressures required to place the boiling point at those temperatures. The pressures are stated in mega-Pascals, where a Pascal is a Newton per square meter, and as a multiple of standard atmospheric pressure .
Water Vapor and Vapor Pressure
Hérétiques
Effet Miller - Wikipédia
Un article de Wikipédia, l'encyclopédie libre. On nomme Effet Miller l'influence du gain d'un amplificateur de tension inverseur sur ses propres caractéristiques d'entrée (dans le cas d'un amplificateur non-inverseur (le même effet conduit à la génération d'impédances négatives).
B ut : Montrer une habileté manuelle à la hauteur de l'habileté intélectuelle qui a présidé à la création du schéma et des plans du futur Circuit Imprimé.