What is this close-up picture? (WotsThat: Wire mesh (macro))

Question

What object is shown in this zoomed-in close-up photo?

ChrysocollaQ · Accepted Answer

Wire mesh (macro). Wire mesh was originally invented not for filtration or construction, but as a solution to a surprisingly mundane problem in the 1890s: preventing sparks from escaping coal furnace chimneys. The inventor patented the idea specifically to reduce house fires in industrial areas, and the technology proved so useful that it was quickly adapted for countless other applications we use today, from tea strainers to industrial screens.

Answer: Wire mesh (macro)

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