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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 7, 2008


XRayView - Chemistry Software

Chemistry online Resources

XRayView, G. N. Phillips Lab, supported by W. M. Keck Foundation. a Teaching Aid for X-ray Crystallography

XRayView : A Virtual X-Ray Crystallography Laboratory

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"This software uses interactive computer graphics to introduce basic concepts of X-ray diffraction by crystals, including the reciprocal lattice, the Ewald sphere construction, Laue cones, the wavelength dependence of the reciprocal lattice, primitive and centered lattices and systematic extinctions, rotation photography, Laue photography, space group determination and Laue group symmetry, and the alignment of crystals by examination of reciprocal space.

XRayView is designed with "user-friendliness" in mind, using Motif style, pull-down menus to control the program. Many of the experiences of using real X-ray diffraction equipment to examine crystalline diffraction can be simulated. Exercises are available on-line to guide the users through typical X-ray diffraction experiments"[1].


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"XRayPlot allows plots of arbitrary planes of diffraction data given the space group symmetry, the unit cell dimensions, and a list of intensities or structure factor amplitudes with their associated hkl indices"[1].

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