The Sand Motor - Passionate Research Idaho modern oldtimer builds 2 days ago   15:31

The Sand Motor is a large pilot project for natural coastal reinforcement. Wind and currents spread the sand along the coast, thereby strengthening the coast and creating new space for recreation and nature. The alterations in its shape have largely matched expectations so far. On the basis of the initial observations, researchers also notice that more habitats have been created for flora and fauna as a result of the arrival of the Sand Motor. The Sand Motor has proven appealing for arange of outdoor activities, especially kitesurfing.

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Paul Marado
It took fossil fuels to move the sand. Thus global warming climate change.
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Idaho modern oldtimer builds The Sand Motor - Passionate Research 2 days ago   24:16

Mike Oehler lived for over 30 years in an underground home that he built for $50 (and expanded for $500) on his land in Northern Idaho near the Canadian border. Now in his seventies his arthritis keeps him from hiking up to his home, but he continues to “write and proselytize”

In 1968 like thousands of other San Franciscans hoping to go “back to the land”, Oehler bought property and began to build a homestead. After spending a winter freezing in a small cabin, he designed a home that would use the earth as insulation. With his first attempt he fell into the easy errors of what he calls a “first thought house”: a hole cut into a hillside with south-facing windows.

Gradually he began to innovate with subterranean design, creating better ways for letting light in: among them “the Hollywood Wing”, “the Royer foyer”, gables and most-importantly the “uphill patio” (which also provides space for an earth-sheltered greenhouse). He also created an inexpensive, low-tech approach to basic design with what he calls PSP or Post/shoring/polyethlene.

Mike Oehler's "$50 & Up Underground House Book":