If you film a candle moving around with an old camera, the fire leaves a temporary trail behind itself. How does this work?
In: Technology
Do you mean old digital cameras or old film cameras? Do you mean a trail left in the actual photos, like [this](https://www.indiaphoto.org/fun/mix/soap_bubble_candle.jpg)? Or do you mean there’s a trail left behind on the digital viewfinder screen thing?
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