Groovy sounds - Exploratorium Science Snacks

Got vinyl records, but no record player?
Try this activity to get into the groove.
By using a pin, paper and a pencil you can make a simple record player that actually works!
CAUTION...this activity might ruin your albums for future hi-fidelity use.

Records contain analog sounds encoded and etched into their vinyl. A needle or pin placed in the groove of a spinning record will vibrate due to the bumps and curves it encounters as the disc moves beneath it. Paper shaped into a cone can act as a sounding board for the pin. You can hear the sounds on the album as you turn it!!!

For more information go to:
www.exploratorium.edu/ti

Category:

Science & Technology

Tags:

• sound
• noise
• vibration
• waves
• frequency
• amplitude
• teacher
• institute
• exploratorium
• science
• hands
• on
• LP
• rotation
• diy
• make
• build
• stereo
• muller

[aleleonc]

Great team work!! I love the snacks in video. All the way from Australia. :-)

[TheAllBlackMan]

I have the exact opposite problem. I have a record player, but no vinyl!

[Techforlearning]

Nice and easy experiment and it's very interesting!