https://padlet.com/josematosxd/21z598n9682rjed7 JOSE ALONSO MATOS - 5TO DE SECUNDARIA en-us 2020-10-23 00:19:40 UTC 2020-10-23 00:38:44 UTC hello@padlet.com josematosxd https://padlet.com/josematosxd/21z598n9682rjed7/wish/854575027 The first method of recording and playing back sound was invented by  Thomas Edison.]]> 2020-10-23 00:20:15 UTC https://padlet.com/josematosxd/21z598n9682rjed7/wish/854575027 josematosxd https://padlet.com/josematosxd/21z598n9682rjed7/wish/854590099 Lps (long playing records) were developed in late 1940s. Records are made of vynil, a type of plastic.]]> 2020-10-23 00:28:51 UTC https://padlet.com/josematosxd/21z598n9682rjed7/wish/854590099 josematosxd https://padlet.com/josematosxd/21z598n9682rjed7/wish/854596306 The first portable personal stereo was invented,the Walkman.For the first time,music fans could listen to their own music anywhere.]]> 2020-10-23 00:32:21 UTC https://padlet.com/josematosxd/21z598n9682rjed7/wish/854596306 josematosxd https://padlet.com/josematosxd/21z598n9682rjed7/wish/854600957 Cds could hold about 80 minutes of music.Over 200 billion CDs have been sold worldwide since 1982.]]> 2020-10-23 00:35:01 UTC https://padlet.com/josematosxd/21z598n9682rjed7/wish/854600957