Spinal cord injuries are often a worst-case diagnosis for people who suffer accidents because they may mean permanent disability. Unlike a broken leg or pulled muscle, spinal cord injuries do not heal themselves over time.
Just as the perfect picture of a horse cannot convey the fluidity of it gallop, so does a frozen picture of DNA fail in describing its intricate dance. "These are wet, warm, squishy things," says Adam Cohen of Harvard University. They jiggle, they flap, they twist, they turn, and they randomly "walk" about.
The recent advent of transmission electron microscopes with integrated scanning probe microscope sample stages is permitting unprecedented nanoscale observation and analysis of materials. Jianyu Huang of Sandia National ...
R+D Magazine has recognized a tabletop microscope developed by a team of Colorado State University and Berkeley researchers at the National Science Foundation Engineering Research Center for Science and Technology as one of the Top 100 most significant technological advances for 2008.
Because they are riddled with defects, bulk crystalline materials never achieve their ideal strength; nanocrystals, on the other hand, are so small there's no room for defects. Yet while nanocrystalline materials may approach ideal strength in their resistance to stress, most nanostructures have shown only a limited ability to withstand large internal strains before they fail.
The most advanced and powerful electron microscope on the planet-capable of unprecedented resolution-has been installed in the new Canadian Centre for Electron Microscopy at McMaster University.
"We are the first...
Scientists at the Johannes Gutenberg University Mainz have, for the first time, succeeded in rendering the spatial distribution of individual atoms in a Bose-Einstein condensate visible. Bose-Einstein condensates are small, ultracold gas clouds which, due to their low temperatures, can no longer be described in terms of traditional physics but must be described using the laws of quantum mechanics.
The special SESAM system, a high performance version of the LIBRA® 200 transmission electron microscope series from Carl Zeiss SMT, has been in use at the Stuttgart Center for Electron Microscopy (StEM) of the Max-Planck-Institute for Metals Research (MPI-MF) for the past 10 months.
Put steel under a powerful microscope, revealing its microstructure, and prepare to be surprised. Known for its strength, the metal will appear pitted and pocked."It is intrinsic to the material," says Carolyn Aita, a Wisconsin Distinguished Professor at the University of Wisconsin-Milwaukee (UWM). "A pit can begin to develop from a physiochemical defect in the steel itself."
With the appearance of gracefully swooping beams of light or a colorful array of feathers, a dazzling photo of Pleurosigma (marine diatoms) has won the 2008 Nikon Small World Photomicrography Competition. Michael Stringe...
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