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Our suggestions

Sunrise/sunset hours, all year long

GPL-distributed Python software that draws sunrise, sunset and daylight graphs.

crepyscule

Don't know yet about Campino?

A Campino visit from the two ptaff.ca founders.

Campino [Fr]

“Volumes of air” project

Estimation of the air volume consumed by human activities.

Estimating volumes of air throughvarious engines in an urban setting
Estimate air consumption for youor for a group (family, city, etc.)

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