Quote:
Originally Posted by peacegirl
No, because it took time for the light to reach the photocells, but this is not the same thing as a camera with a lens. The clock has been running for 1 hour 81/2 minutes.
|
Quote:
Originally Posted by peacegirl
What threw me is that you said the Sun was turned on and then turned off. So what is the answer? If it took 81/2 minutes for the light to get here, the clock would start at 12:50:30. Am I right? 
|

You really have inherited your father's extraordinary mathematical abilities.
Quote:
Originally Posted by peacegirl
Lenses of all kinds point to objects which then focus the light.
|
Lenses can't do anything at all to light that hasn't yet had time to get to the lens.