On a dark night, from how many km away can your eyes spot a match being struck?
Question #17049. Asked by Exhausted.
Last updated Jan 11 2017.
Calpurnia
Answer has 3 votes
Currently Best Answer
Calpurnia 21 year member
75 replies
Answer has 3 votes.
Currently voted the best answer.
An amazing 80 kilometres apparently, if I have done my maths correctly.
'The sensitivity of the human eye is so keen that on a clear, moonless night a person standing on a mountain peak can see a match being struck as far as 50 miles away.
'Much to their amazement, astronauts in orbit around the Earth were able to see the wakes of ships.'
See: [ url needs to be updated ]
Response last updated by satguru on Jan 11 2017.
Mar 09 2002, 7:19 PM
