https://padlet.com/ktie_gonzalez/3d28b65p6gqu Inventions and Innovations en-us 2017-11-14 15:11:38 UTC 2023-05-08 19:42:49 UTC hello@padlet.com ktie_gonzalez https://padlet.com/ktie_gonzalez/3d28b65p6gqu/wish/206759402 Electronics is a branch of physics that deals with the emmisions and effects of electrons and with the use of electronic devices]]> 2017-11-14 15:13:50 UTC https://padlet.com/ktie_gonzalez/3d28b65p6gqu/wish/206759402 ktie_gonzalez https://padlet.com/ktie_gonzalez/3d28b65p6gqu/wish/206766394 2017-11-14 15:22:39 UTC https://padlet.com/ktie_gonzalez/3d28b65p6gqu/wish/206766394 ktie_gonzalez https://padlet.com/ktie_gonzalez/3d28b65p6gqu/wish/206771275 Peter L. Jenson was one of three who invented the loud speaker. Speakers have always been a popular electronic that is very useful to people. The standard dynamic loudspeaker that we know of today was first built in the 1920's and uses a magnetic field to move a coil or magnet which is connected to a diaphragm. 

]]> 2017-11-14 15:28:50 UTC https://padlet.com/ktie_gonzalez/3d28b65p6gqu/wish/206771275 ktie_gonzalez https://padlet.com/ktie_gonzalez/3d28b65p6gqu/wish/207716649 Horns were the earliest type of amplification. These were used and built from the 1880's to the 1920's. Horns did not use electricity. Since they did not use electricity the problem with them was that they couldn't really amplify sound like people wanted.]]> 2017-11-16 15:27:39 UTC https://padlet.com/ktie_gonzalez/3d28b65p6gqu/wish/207716649 ktie_gonzalez https://padlet.com/ktie_gonzalez/3d28b65p6gqu/wish/207721468 http://www.edisontechcenter.org/speakers.html]]> 2017-11-16 15:35:00 UTC https://padlet.com/ktie_gonzalez/3d28b65p6gqu/wish/207721468