Years of traditional chisel sharpening give way to a faster, permanent setup. A variable-speed grinder and CBN wheel replace stones and jigs. The goal shifts from perfection to repeatable sharpness.

A 7,000-year-old wood-lined well discovered in eastern Germany was removed from the site in a single, enormous block and transported to a lab in Dresden for study.(Courtesy Rengert Elburg, Landesamt ...

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Abstract: Pan-sharpening aims to seek high-resolution multi-spectral (HRMS) images from paired multispectral images of low resolution (LRMS) and panchromatic (PAN) images, the key to which is how to ...