What is this close-up picture? (WotsThat: Light bulb filament)

Question

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

CinnabarLine · Accepted Answer

Light bulb filament. Thomas Edison's original light bulb filaments were made from carbonized cotton thread, which only lasted a few hours. Modern tungsten filaments can glow for thousands of hours because tungsten has an incredibly high melting point of 3,422°C.

Answer: Light bulb filament

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