And if the soft tonal differences are not enough to take your attention away from where the hands are pointing, think about how it was made — via an original tanning method, which exposed the leather face of the clock to different intensities of sun exposure. (idealhome.co.uk)
As a comparison, the intensity of the sun on the earth is approximately 100 watts per m2. (sciencedaily.com)
«Glacial and interglacial cycles are driven by the sun and Earth orbital parameters that impact solar insolation (intensity of the sun's rays) as well as by changes in the continental ice sheets and greenhouse gas concentrations.» (sciencedaily.com)