Mapa mental
Gadgets and Inventions

Contenido del mapa
Gadgets and Inventions
Telephone transmitter
- This small device transmits through the commercial frequency-modulated band.
Photograph
- Technique of obtaining images by the chemical action of light on a surface with certain characteristics.
Gramophone
- The gramophone was the first system of recording and reproduction of sound that used a flat disk, unlike the phonograph that recorded on a cylinder.
long-lasting electric cube
- This invention is to clean and was used mostly in houses.
Imágenes y archivos del mapa
Información
- Descripción
- Mapa Mental sobre Gadgets and Inventions, creado por Mauricio Martinez el 15/02/2019.
- Creado por
- Mauricio Martinez
- Visitas
- 3
- Valoración

