Is There a Speed of Darkness? And Other Questions About Light and Perception

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The discussion centers around the concept of "darkness" and whether it has a speed, with participants debating its nature as the absence of light. It is concluded that darkness does not have a speed of its own, as it is not a physical entity but rather a condition defined by the presence or absence of light. Some argue that the perceived speed of shadows can exceed the speed of light under certain conditions, but this does not imply that darkness itself moves. The conversation touches on the philosophical implications of darkness and its relationship to light, emphasizing that darkness is a human concept rather than a measurable phenomenon. Ultimately, the consensus leans towards viewing darkness as a lack of detectable light rather than a tangible force with its own speed.
  • #31
explorer2909 said:
I think I am supposed to give the link of the document I quote, here is the link, crackpot link deleted
I have two more questions after reading the article, 'How do we perceive light?' 'Why we cannot see the sun or any other light source even when our eyes can absorb the photons emitted by the sun?'

and, as shown in one of the experiment in the article, 'how can image in the mirror be formed even when path of the light between the mirror and the object is blocked?'

Since you have taken time to read, I assume in detail, a worst case web source you really should give equal time to a real physics text.

thread locked.
 

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