Standards labs like the NPL are interested in colorimetry — the science of measuring colour — because of its many useful applications. Brewers, for example, can judge the quality of their beer from its colour, while environmental scientists can monitor climate change by looking at the amount of green in satellite pictures. The collaboration has also helped to make the public more aware of what the laboratory does. The equipment consisted of a Hamamatsu spectrometer, a fibre optic cable to feed light into the device, and a tripod.
At each destination on her trip, Hohnbaum was asked to point the portable spectrometer at the sky to measure the spectrum of light at that location figure 2. All measurements were taken at 10 a. She also had to ensure the spectrometer was properly callibrated at each destination by shining a special LED torch onto the device from a fixed distance. Hohnbaum then sent the data to the NPL via e-mail before heading off to her next destination.
The data from Rio de Janeiro were found to be closest to the bluest part of this diagram — hence Brazil was deemed to have the bluest sky. NPL says that its measurements, which can be traced to the SI system of units, could provide a new standard for measuring the colour of the sky.
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The Bluest Skies
Enter e-mail address Show Enter password Remember me. Enter e-mail address This e-mail address will be used to create your account. Reset your password. Please enter the e-mail address you used to register to reset your password Enter e-mail address. Registration complete. I remember Colorado skies being less blue than floridas. High Plains Guy.
The most striking blue sky I've ever seen was the sky in the American southwest. I just went through photos from that particular road trip the other day, and it reminded me just how gorgeous those skies were. I'm speaking mostly of the Phoenix area, but I recall photos from Flagstaff, and the SLC area having the same cobalt blue hue.
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User Name. Remember Me. View detailed profile Advanced or search site with. Page 1 of 6. Advertisements I'm looking for the most gorgeous, bluest skies in the US.
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