Homemade Science with Bruce Yeany | Simple siren disc build instructions // Homemade Science with Bruce Yeany @YeanyScience | Uploaded 3 years ago | Updated 2 hours ago
Here are ideas on how to build and demonstrate a simplified version of the Seebeck siren disc that has been a classic physics demonstration showing the relationship between frequency and pitch since the 1840's. Using simple materials, toy such as foam plates, cardboard or old CDs, to make the siren disc and toy DC motors to drive it the video shows the steps needed to complete a simple investigation.
CDs are meant to spin at 500 RPMs. and tend to explode around 30,000 RPMs,
I measured the the highest speed reached by a CD on this device, around 3,200 RPMs. However, the holes may weaken the discs I also found a few of them separated into two thinner discs. While I will still use the CD. discs, any future pieces will most likely be made out of the foam plate material.
Here are ideas on how to build and demonstrate a simplified version of the Seebeck siren disc that has been a classic physics demonstration showing the relationship between frequency and pitch since the 1840's. Using simple materials, toy such as foam plates, cardboard or old CDs, to make the siren disc and toy DC motors to drive it the video shows the steps needed to complete a simple investigation.
CDs are meant to spin at 500 RPMs. and tend to explode around 30,000 RPMs,
I measured the the highest speed reached by a CD on this device, around 3,200 RPMs. However, the holes may weaken the discs I also found a few of them separated into two thinner discs. While I will still use the CD. discs, any future pieces will most likely be made out of the foam plate material.
