Hello Michael, The general permitted use allowed in copyright laws is one copy can be made for any individual. This allows libraries to function. Posting to a forum requires specific permission and attribution. It is better to post a link to the original source.
Regards, Roger Bailey NASS Secretary From: Michael Ossipoff Sent: Thursday, July 02, 2015 7:40 AM To: sundial@uni-koeln.de Subject: Can I share Universal Analemmatic Sundial image? I know that often one shouldn’t share an organization’s printed materials. Is it alright to send, to individuals, a copy of one of NASS’s PowerPoint files with the image of the Universal Analemmatic sun compass? Taking the question a step farther, it it alright to post it at a forum discussion of methods for solar direction-finding? That’s an ingenious device, and I was surprised to find out that it was first introduced no later than 1660. The “N” at the noon direction puzzled me at first, until I realized that it was the direction of a shadow at noon, not the sun. That sun-compass is a particularly useful, convenient and versatile one, because it can be used even when it isn’t in the sunlight. If you’re in a car or train, and shadows of telephone poles are visible outside your window, then the device can give north, by showing the angle between north and a shadow’s direction. Thanks to NASS and to Fred Sawyer for those images of the Universal Analemmatic sun-compass. Michael Ossipoff 26N, 80W -------------------------------------------------------------------------------- --------------------------------------------------- https://lists.uni-koeln.de/mailman/listinfo/sundial -------------------------------------------------------------------------------- No virus found in this message. Checked by AVG - www.avg.com Version: 2015.0.6037 / Virus Database: 4365/10142 - Release Date: 07/02/15
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