Engineering 305 (Engr 305), Appropriate Technology, is a course on appropriate technology at Humboldt State University taught by instructor Lonny Grafman. See past projects below.
Past Projects
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AEF greywater
Greywater system at the CSA, Arcata Educational Farm -
AEF food dehydrator
A solar dyhedrator to help preserve surplus crops -
AEF informational kiosk
An earthen informational kiosk -
AEF photovoltaic system
Modified off-grid photovoltaic system -
AEF solar water heater
Improved solar water heating system -
AEF spiral herb garden
Restored the existing herb spiral -
Air Ship Air City rooftop greywater filtration
A rooftop greywater filtration system -
Aleiha's parabolic solar cooker
Parabolic Solar Cooker -
Amal's ethanol still
A valved reflux ethanol still -
Bike trailer
A bike trailer from a converted baby stroller -
Blue ox earthen oven
The Blue Ox earthen -
Bottoms strawbale earthen plaster
Earthen Plaster and Natural Paint Recipes -
CCAT Cold Box
an energy efficient solution to a refrigerator -
CCAT Compost System
CCAT's comprehensive composting system -
CCAT Raised Garden Beds
Controlled beds of soil above toxic ground -
CCAT Retaining Wall
A retaining wall for slope erosion -
CCAT greenshed north wall
The cordwood and mortar wall of CCAT's Greenshed -
CCAT greenshed west wall
The clay-straw slip wall of CCAT's Greenshed -
CCAT Greenshed south wall
Cob wall of CCAT's Greenshed -
CCAT Clay-straw slip wall
The Clay-straw slip wall of CCAT's Greenshed -
AEF informational kiosk
An earthen informational kiosk -
CCAT Small Rainwater Catchment
A rainwater catchment system -
CCAT clothes drying
An efficient clothes drying system for CCAT -
AEF photovoltaic system
Modified off-grid photovoltaic system -
AEF greywater
Greywater system at the CSA, Arcata Educational Farm -
AEF food dehydrator
A solar dyhedrator to help preserve surplus crops -
AEF informational kiosk
An earthen informational kiosk -
AEF photovoltaic system
Modified off-grid photovoltaic system -
AEF greywater
Greywater system at the CSA, Arcata Educational Farm -
AEF food dehydrator
A solar dyhedrator to help preserve surplus crops -
AEF informational kiosk
An earthen informational kiosk -
AEF photovoltaic system
Modified off-grid photovoltaic system