ML622623207
作者
Paul Salaman 该用户提供的媒体文件 档案
日期
地点
Airlie Conference Center (Restricted Access)
Fauquier, Virginia, United States
该地点产生的媒体文件 配图名录- 年龄
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- 性别
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媒体文件注释
The mallard has sligh;y larger
观察细节
The forensic evidence was clear : using wave propagation, reflection, diffraction, and interference on the attached photo, plus free surface synthetic schlieren and optical techniques thereby the amplitude of waves generated from the duck in the foreground must be a Mallard, conversely the significantly different background surface height of the wave (using the inverse gradient operation on the displacement) conclusively indicate an American Wigeon. Then the birds appeared.... Further information on evidence and models available in "The Art of Forensic Birding" in press.
技术信息
- 尺寸
- 2075 pixels x 1624 pixels
- 原始文件大小
- 466.05 KB