Rainwater Harvesting for Drylands and Beyond by Brad Lancaster

Winter-Solstice Shadow Ratio Calculator

WSSR Sun-Angle Calculator 130117 Tucson p1

WSSR Sun-Angle Calculator 130117 Tucson p2

Would you be interested in having access to a usable version of this Winter-Solstice Shadow Ratio calculator? Does it seem like it would be a useful design tool? Send us an email with your comments and feedback.

Drops in a Bucket Blog

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Upcoming Events

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Umbrella Newsletter

The Umbrella: Spring Equinox 2017

THE UMBRELLA:
A catch-all of resources,
events, media, and more
from Brad Lancaster
Spring Equinox 2017
Around here we like to rhyme with the seasons whenever possible. In this case, that means welcoming the fast-approaching beginning of SPRING (the Vernal Equinox (in the northern hemisphere) is March 20 this year in Tucson, and marks one of only two […]

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