{"Device hardware license":"CERN-OHL-S","Page SDG":"SDG08 Decent work and economic growth","Page URL":"https://www.appropedia.org/Non-electric_Megaphone","Page affiliations":"ENGR242, Category:Principia","Page description":"This megaphone is OSAT appropriate because there are practical uses for such a device in developing countries. A few examples would be alerting others to danger, or speaking to a crowd of people, or cheering during a sports match. Given how much electronic megaphones cost, my megaphone design is a preferrable alternative. The only way electric megaphones could be worth purchasing in developing countries would be if they were as cheap or cheaper to produce and sell than the 3D design I made.","Page image":"File:FreemanMegaphone2.png","Page keywords":"3D printing, megaphone, osat, voice projection, zero electricity, pla","Page language":"en","Page license":"CC-BY-SA-3.0","Page title":"Non-electric Megaphone","Page views":"562","Page year":"Monday, 01-Jan-18 00:00:00 UTC","Project authors":"User:Alan Freeman","Project cost":"1.5","Project thumb":"https://www.appropedia.org/w/images/thumb/8/8b/FreemanMegaphone2.png/330px-FreemanMegaphone2.png","Project was made":"","Project was replicated":"","Project year":"Monday, 01-Jan-18 00:00:00 UTC","Modification date":"Tuesday, 18-Jun-24 19:27:01 UTC"}