Don Osborn

@donosborn.bsky.social

377 Followers 836 Following

Africa agriculture Baha'i China development environment food ict4d justice L10n language policy research rural security systems. JHU, MSU. RPCV. PhD.

Venn diagram of “renewables” in green circle and “burnable/combustible” in red circle. Various forms of bioenergy are in the brown overlap of the two. “Cleaner energy” such as solar and wind are in the pure green area, and fossil fuels in the pure red.

Venn diagram of two partially overlapping circles: 1. Science and engineering of indoor air quality (IAQ); and 2. Epidemiology of airborne viral transmission. Plus a third non-intersecting (or potentially intersecting) circle above, representing Cleanliness & refinement in Bahá'í teachings.

Venn diagram of two partially overlapping circles: 1. Science and engineering of indoor air quality (IAQ); and 2. Epidemiology of airborne viral transmission. In the overlap are listed: Corsi-Rosenthal boxes; UVC devices; improved HEPA filters; indor air quality (IAQ) evaluation apps; carbon-dioxide monitors; and devices to detect pathogens in real time (which are in development)

Venn diagram of two partially overlapping circles: 1. Science and engineering of indoor air quality (IAQ); and 2. Epidemiology of airborne viral transmission

Venn diagram of three partially overlapping circles: 1. Bahá'í teachings on cleanliness and refinement; 2. Science and engineering of indoor air quality (IAQ); and 3. Epidemiology of airborne viral transmission

Yin yang diagram with "work" and "leisure"

Cover of L. Arensdorff's Manuel pratique de langue peule (1913, reprint 1966)

Venn diagram showing “renewable” energy in a green circle, burned or combusted energy in a red circle, and bioenergy in the brown overlap of the two. In

World map with south up and north down

Two outline maps of North America, one traditional north south, and the other rotated south north, arranged like yin-yang

Portait photo of Joseph W. Mansur (1808-1892)

Clipping of Joseph W. Mansur's statement of his opposition to slavery "in whatever form it may exist," and his support for "suppression of the slave-trade." November 1838

Detroit Free Press item on an upcoming Adelphi debate, May 1870

Pen sketch of moon over water and shore with palm trees