A low-cost (~$100), do-it-yourself (DIY) ultrasonic water level sensor/datalogger has been designed, constructed, and tested for use in education, citizen/community science, and research settings. The ...
We've all see those white canes that some people with visual impairments use. They click them on things and listen to, as well as feel, their environment. Denver Dias, as part of his undergraduate ...
Results that may be inaccessible to you are currently showing.
Hide inaccessible results
Feedback