Dynamo powered walkie talkies
Battery-powered walkie-talkies are good. However, they can run out of juice at... Read more

by Wendy Boat-Cumming Dec 24, 2022 2 Comments 2 Links
#adventure, #communication, #ecofriendly, #energy, #greenenergy, #outdoors, #radio, #walkietalkie,
by MeterMan Mar 17, 2022 4 Comments 4 Links
#communication, #language, #linguistics, #logic, #math, #maths, #physics, #science,
by sunnyjim Oct 20, 2020 2 Comments 2 Links
#communication, #education, #environment, #language, #nature, #wisdom,