منابع مشابه
Measuring overcast colors with all-sky imaging.
Digital images of overcast skies as seen from the earth's surface open new windows onto the angular details of overcast colors and visible-wavelength spectra. After calibration with a spectroradiometer, a commercial CCD camera equipped with a fisheye lens can produce colorimetrically accurate all-sky maps of overcast spectra. Histograms and azimuthally averaged curves of the resulting chromatic...
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The email from an unknown sender popped into my inbox 'Hi, we were at a conference recently and I'd like your advice ...' Something stopped me from hitting delete immediately and I read on: a Texan Professor of Family Medicine was seeking a UK GP academic to test his various hypotheses about the US healthcare system versus the rest of the world. That was 6 years and a hundred emails ago. Autumn...
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ژورنال
عنوان ژورنال: Scientific American
سال: 1921
ISSN: 0036-8733
DOI: 10.1038/scientificamerican03011921-231supp