Other
Scientific paper
Apr 1913
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1913natur..91..137b&link_type=abstract
Nature, Volume 91, Issue 2267, pp. 137 (1913).
Other
Scientific paper
Is not the case mentioned by M. E. J. Gheury in NATURE of March 27 (p. 86) but a special case of the familiar fact that an object which is so like its background as to be invisible when at rest is commonly visible when it moves? In this case, as the telescope moved, the signal in its field of view was to the eye fixed to its eyepiece an object moving against the background of misty sky, which it so nearly resembled as to be invisible when at rest. Is not the explanation as follows? Visibility of the object, and in particular of its outline, depends on contrast between it and its background. There is commonly some contrast, but often so slight as not to attract attention when the object is at rest. When, however, the object moves, the brain receives successive impressions of contrast as the image of the object falls on one part of the retina after another. Thus the brain receives a cumulative impression of contrast between the object and the background, and the object becomes ``visible.''
No associations
LandOfFree
On the Gain of Definition obtained by Moving a Telescope does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with On the Gain of Definition obtained by Moving a Telescope, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and On the Gain of Definition obtained by Moving a Telescope will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1860584