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(1) MIT: New insights on fusion power

David Chandler, MIT News Office
December 3, 2008

Research carried out at MIT's Alcator C-Mod fusion reactor may have brought the promise of fusion as a future power source a bit closer to reality, though scientists caution that a practical fusion powerplant is still decades away.

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(2)Disappearing superconductivity reappears -- in 2-D

Scientists studying a material that appeared to lose its ability to carry current with no resistance say new measurements reveal that the material is indeed a superconductor -- but only in two dimensions. Equally surprising, this new form of 2-D superconductivity emerges at a higher temperature than ordinary 3-D superconductivity in other compositions of the same material.

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December 5, 2008



Chemistry online Resources

Escher Web Sketch, W. Hardecker and G. Chapuis. A program for drawing 2D periodic patterns with a web browser.

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Escher Web Sketch allows you to draw repeating patterns. You can select the symmetry of the patterns by clicking on one of the icons in the bar above the drawing area. The drawing tools are selected from the icon bar under the drawing area. You can also change the pattern size and placement with the Modify cell button. The right hand side of the drawing area is reserved for each drawing tool's usage. Typically it changes the pen size and color.

An Interactive Course on Symmetry and Analysis of Crystal Structure by Diffraction, G. Chapuis and W. Hardecker.
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An interactive course, freely available on Internet for the presentation of basic crystallography concepts

Discovering Symmetry, Nicolas Schoeni and Gervais Chapuis. An applet to discover the point group symmetry of platonic and other polyhedra

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Symmetry Tutorial, Dean H. Johnston, Otterbein College. Includes a symmetry challenge and symmetry gallery

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Welcome to the world of symmetry! The resources contained within this web site are designed to help students learn concepts of molecular symmetry and to help faculty teach concepts of molecular symmetry. The materials are designed for a variety of levels, so look around and see what we have to offer. Choose from the following pages:

Analytical Inorganic Organic Physical

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