What's That Bug? Concrete Poured Into Ant Colony Reveals Insect Megalopolis A video from Ants: Nature's Secret Power shows off the complicated, seemingly human abilities of non-human builders This extraordinary video clip is from Ants: Nature's Secret Power, a documentary about the world of ants as seen through the eyes of Bert Hölldobler, ant authority and E.O. Wilson collaborator. Concrete was poured into an giant underground ant megalopolis, which acts as a mold. After the concrete hardened, scientists carefully excavated it to reveal the structure of the ant's elaborate "city-state": Everything looks like it has been designed by an architect, a single mind, but of course that isn't true. It's kind of grown-up reverse ant farm. Video link here. via SwissMiss This post also appears on The Improvised Life.Image: Juan Carlos Ulate/Reuters
ScaleNet: A Database of the Scale Insects of the World Welcome to ScaleNet. This site is all about scale insects (Coccoidea): a group of insects comprising about 7,500 species. Scale insects vary dramatically in their appearance from very small organisms (1-2mm) that occur under wax covers (some look like oyster shells), to shiny pearl-like objects (about 5mm), to creatures covered with mealy wax. They spend most or all of their lives feeding on plants and are primarily important as plant pests in greenhouses, backyards, and on fruit trees. The objective of this site is to provide comprehensive information on the scale insects of the world, including queriable information on their classification, nomenclatural history, distribution, hosts, and literature. The Reference database of ScaleNet includes about 25000 references, the majority of which have been published since Linnaeus (1758). If you click on Queries on the left side of this page you will be presented with the query page and be able to begin searching for the information you need.
Singing Insects of North America How to use SINASome features of SINACopyrights (ours and others)Contributing to SINARecent contributions to SINAOther acknowledgementsReferencesAbout Singing Insects of North America How to use SINA. Important: Portions of Singing Insects of North America [SINA] will take about two more years to complete. To determine if an insect is a cricket, katydid, or cicada Go to this page ("Home") and click on How to recognize crickets, katydids, and cicadas. To identify an unknown cricket, katydid, or cicada Go to the division dealing with Crickets, Katydids, or Cicadas and click on the Keys button. To learn about a species of cricket, katydid, or cicada for which you know the name Go to the division dealing with Crickets, Katydids, or Cicadas and click on the List of Species button. To learn about a genus or subfamily for which you know the name Go to the appropriate division (Crickets, Katydids, or Cicadas) and click on the List of Species button. To go to a key to the genera of a subfamily you know
Les sons créateurs de formes géométriques Alain Boudet Dr en Sciences Physiques, Thérapeute psycho-corporel, Enseignant Résumé: Lorsqu'une plaque sur laquelle on a déposé du sable ou un liquide est soumise à une vibration ou à un son, le sable ou le liquide s'arrangent en d'extraordinaires figures géométriques. Ces figures sont segmentées en cellules symétriques d'autant plus fines et complexes que la fréquence vibratoire est élevée. Les sons peuvent-ils se manifester par des formes? Commençons en contemplant ces quelques images. La première image représente un film d'eau déposé sur une membrane ronde en latex soumise à une vibration de 19 Hertz, éclairé par une lampe installée au-dessus. La deuxième image représente une grosse goutte d'eau déposée sur une surface plate soumise à une vibration de quelques dizaines de Hertz, éclairée par une lampe installée au-dessus. La troisième image représente une plaque ovale en acier, de longueur 23 cm, sur laquelle on a déposé du sable fin et qui vibre à 12'301 Hertz. Le tube de Kundt
The Find-a-spider Guide - Golden orb-weaver Find a spider by... common name location species family webs and egg sacs photos This species exhibits striking sexual dimorphism, the small male often waiting on the periphery of the web. An important characteristic of the female is the present of black brushes along the legs. The web is remarkably strong and has a characteristic yellow colour as does the fluffy egg sac which tends to be left in the tree the spider was using for support. In many parts of south-east Queensland this species is present in very large numbers, especially throughout the warmer months of the year. Spider(s) with a very similar appearance: Nephila plumipes and Nephila pilipes MYRMECOS - Insect Photography - Insect Pictures Jubilothèque — A propos Corpus Science collection This digital library project was initiated and implemented by the Bibliothèque Interuniversitaire Scientifique Jussieu as part of the four-year 2005-2008 contract of the University Pierre et Marie Curie, with the financial support of the Sous-Direction des Bibliothèques et de l'Information Scientifique. Additional funding given by the Direction de la Technologie enabled a substantial addition to the number of digitized books. Since 2009, the BUPMC is associated with the National Library of France and is consequently granted by the BnF for digitization projects. The projet includes mainly printed monographs in french language, a few offprints and manuscripts, ranging from the end of the XVIIIth century to the beginning of the XXth century. In 2013 the digital library numbers over 380 000 digitized pages. The selection of the corpus followed several criteria : This selection would not have been possible without the support and implication of the scientific community.
Entomology at Texas A&M University - Home Biographie de Johannes Kepler : les polyèdres Johannes Kepler est un astronome allemand à qui nous devons beaucoup : Il a élucidé les mystères des orbites des planètes autour du Soleil, et en a sorti 3 lois qui sont aujourd'hui les fondements de la mécanique céleste. Grâce à lui, nous pouvons estimer avec une grande précision la distance, la taille, la vitesse des objets qui parcourent le système solaire. Il croyait également que les 6 planètes connues à l'époque étaient imbriquées dans les 5 solides parfaits de Platon, qu'on appelle polyèdres, et que la perfection de cette horloge était la preuve du génie de Dieu, notre créateur. Parcourez notre gamme de posters sur Johannes Kepler : Scolarité et études du jeune Kepler Astronome et physicien allemand, Johannes Kepler est né le 27 Décembre 1571 à Weil der Stadt, dans le Wurtemberg. Kepler vit chez ses grands-parents de 1574 à 1576, il part ensuite avec ses parents à Léonberg où il entre à l’école latine. Initié à l'héliocentrisme en cachette Sa vision de l'Univers Le tétraèdre Le cube