Invention I chose was radio.

1. What's the made out of?

2. Describe it. (Details about the invention)

3. Has the need for this invention changed over the years?

4. Why was this invention so important and necessary?

5. Is there anything else that's interesting about your invention?

1. Today's radio consists of an antenna, printed circuit board, resistors, capacitors, coils and transformers, transistors, integrated circuits, and a speaker. All of these parts are housed in a plastic case. An internal antenna consists of small-diameter insulated copper wire wound around a ferrite core.

4 + 2. Whether it's hearing familiar songs, jamming out to today's latest hits, getting critical information during a disaster, the latest news, or learning about important events in the community, consumers trust their favorite radio stations and personalities to get them the information they need when they need it.

3. The Changes to Radios over the last 100 years. Radios have been one of the more important technological devices for more than a century ... For this era, the radio technology was limited to communications with ships in case of an emergency. In 1907, the first commercial transatlantic radio service was created.

5. Guiglielmo Marconi sent the first ever radio transmission in 1896, so he's considered "the father of radio."

AM stands for Amplitude Modulation and FM stands for Frequency Modulation.

KDKA in Pittsburgh, Pennsylvania was the world's first commercial radio station.