Basal skin carcinoma is the most common form of human skin cancer and can be modeled in mice because their underlying skin structure is similar to humans. Learning about how the disease forms in mice may provide clues to prevent skin cancer in humans.
Image: (Left) A cross-section of mouse skin with basal cell carcinoma is shown. The normal skin surface is stained red using Masoson trichrome stain. The blue dye marks the fibrous layer of collagen underlying the skin surface, and the basal tumor cells appear in the red at the bottom. (Right) Using Van Gogh’s “Starry Night” as inspiration, the artist renders the image with fabric and stitching to simulate the painter’s brushwork.
Nicknamed a ‘shockfossil’ this sculpture was generated by a particle accelerator, which is a device that uses electromagnetic fields to propel electrically-charged particles to extremely high speeds. It takes up to 5 million volts to accelerate a beam of electrons into acrylic, and when these temporarily trapped electrons are released, they are carefully gathered into channels that look like everything from river deltas to trees to human lungs.
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These dramatic curlicues were generated by a computer simulation of the motion of a small body — in this case a flat, rigid plate — through an incompressible fluid, such as water or, in some conditions, air. Each of the four images depicts the same phenomenon, but at a different point in time. The “eyes” of the facelike pictures correspond to vortices of turbulence caused by the motion of the plate through the fluid. “Two direct goals of the research are to better understand how birds and insects fly, and to develop unsteady aerodynamic models for advanced micro-aerial vehicles,” says Steve Brunton, a graduate student in Princeton’s department of mechanical and aerospace engineering.
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