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#1
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04-19-2019, 01:38 AM
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How to Find Out if a Wire is Still Live in New Jersey
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#5
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05-06-2019, 09:27 AM
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Re: How to Find Out if a Wire is Still Live in New Jersey
because the camera detected so much light so it had to auto adjust the brightness otherwise the wire would look like a sun
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#9
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08-03-2019, 06:01 AM
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| My Rank: LANCE CORPORAL Poster Rank:3386 Join Date: Aug 2009 Posts: 105 Mentioned: 0 Post(s) Quoted: 43 Post(s)
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Re: How to Find Out if a Wire is Still Live in New Jersey
As others have pointed out, this is due to the drastic change in brightness caused by the power line. In photography, the amount of light directly influences exposure time. Regardless of the medium being physical film, or a digital image through a charged coupled device, the exposure time dictates just how much light will make up the image. In a case like this, the exposure time was greatly reduced (happens automatically in many modern cameras) as the power line was producing so much light, that it would have been nothing more than a bright smear all over the image. As the background light doesn't change, this means that the reduced exposure time results in a darker image for these regions. This is also the reason for why images from the Apollo moon landings have no visible stars. The stars are there, but the ambient light is simply too bright for them to be captured on the image. You can see this effect pretty much every day. When you look up at the sky (using a camera, or the Mk1 eyeball) during the day, stars are not normally seen, but they're still there, they're simply not bright enough to compete with our sun. Does this help? |