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591projects close to Petrópolis in technology
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Design, Community, and Technology
Casanare
Das Frauenhaus von Getsemani
by Nikolaus Wyss

Agriculture, Technology, and Environment
Guatapé, Basel, and San Rafael
Biogasanlage für unter 100$
by Marlon

Community, Technology, and Environment
Conakry and Geneva
Solarnet
by Apprentissages sans Frontières

Startup, Community, and Technology
Ouagadougou
Metallwerkstatt Wendlassida
by Christian

Community, Kids / Youth, and Technology
Managua
SUN for kids in Nicaragua
by Deri

Science, Technology, and Education
Cape Town and Bern
Diabetes in South Africa
by DCB and bridgetmcnulty

Community and Technology
Las Palmas de Gran Canaria
PeerHere
by David Schlesinger

Community, Technology, and Environment
Bekoko
Grüne Energie für Kamerun!
by KamerunGO!

Science, Technology, and Education
Kinshasa and Lausanne
Congolese space rocket
by Christian Denisart, Daniel Wyss, and Jean-Patrice Keka

Community, Technology, and Environment
Basel, Zürich, and Havana
Solarfreeze-Kühlen mit Sonne
by Pierre Güntert, Simón Aurel Schwarz, and Ueli Künzi

Science, Technology, and Education
Belize City
Diabetes Supply for Belize
by Judith Mendez and DCB

Community, art, and Technology
Mexico City and Geneva
El Bosque de la Esperanza
by Aline Wani, Sergio Beltrán-García, and Maevia Griffiths