A Scanning Electron Micrograph of Sweat on a Human Index Finger Tip (IMAGE)
Caption
A scanning electron micrograph of sweat on a human index finger tip. The ridges are what form our finger prints. Technically it is a replica made from the tip of an index finger. The replica is then placed inside a scanning electron microscope. Photo by Jim Swafford.
Credit
Courtesy: Arizona State University
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