history: Are you familiar with phonograph records? I've never heard of them.
knowledge: A phonograph record (also known as a gramophone record, especially in British English, or record) is an analog sound storage medium in the form of a flat disc with an inscribed, modulated spiral groove.
response: Yes, I have heard of them. They are a medium to store analog sound which is known as Gramophone in British english, did you know about that ?
history: Are you familiar with phonograph records? I've never heard of them.
Yes, I have heard of them. They are a medium to store analog sound which is known as Gramophone in British english, did you know about that ?
I had no idea. What else do you know about them?
knowledge: The groove usually starts near the periphery and ends near the center of the disc.
response: Well, I also know that the grooves start close to the periphery of the disk and only ends close to the center
history: Are you familiar with phonograph records? I've never heard of them.
Yes, I have heard of them. They are a medium to store analog sound which is known as Gramophone in British english, did you know about that ?
I had no idea. What else do you know about them?
Well, I also know that the grooves start close to the periphery of the disk and only ends close to the center
Very interesting. Do you know what they are made of ?
knowledge: At first, the discs were commonly made from shellac; starting in the 1950s polyvinyl chloride became common.
response: I do know that. Starting in the 50's, the commom material used became polyvinyl chloride
history: Are you familiar with phonograph records? I've never heard of them.
Yes, I have heard of them. They are a medium to store analog sound which is known as Gramophone in British english, did you know about that ?
I had no idea. What else do you know about them?
Well, I also know that the grooves start close to the periphery of the disk and only ends close to the center
Very interesting. Do you know what they are made of ?
I do know that. Starting in the 50's, the commom material used became polyvinyl chloride
Nice to know that. Are they still common today ?
knowledge: The phonograph disc record was the primary medium used for music reproduction until late in the 20th century.
response: I am not sure about how common they are today, but I do know that thoses dics were used as the primary medium for the reproduction of music until the ending of the 20th century