historia de la electricidad

https://www.youtube.com/watch?v=OpQFFLBMEPI&list=RDRBumgq5yVrA&index=12https://www.youtube.com/watch?v=-2U0Ivkn2Ds&list=RDRBumgq5yVrA&index=13https://www.youtube.com/watch?v=FOjdXSrtUxA&index=15&list=RDRBumgq5yVrAhttps://www.youtube.com/watch?v=47dtFZ8CFo8&list=RDRBumgq5yVrA&index=17https://www.youtube.com/watch?v=PIh2xe4jnpk&index=19&list=RDRBumgq5yVrAhttps://www.youtube.com/watch?v=AtKZKl7Bgu0&list=RDRBumgq5yVrA&index=20https://www.youtube.com/watch?v=rtOvBOTyX00&index=27&list=RDRBumgq5yVrA&spfreload=10