Work in Progress: Sound, Frequency, Wavelengths

First of all, thank to our friend Dean Baird over at Blog of Phyz for sharing the Lincoln Physics blog with his readers. 

http://phyzblog.blogspot.com/2013/10/go-check-out-lincoln-physics.html

Next, I will post some photos from the video-making progress from AAPT Films. On Sunday, I filmed a video about sound and measuring wavelengths using tuning forks and other tools. Tuning Forks, Test Tubes, and Antinodes, Oh My!

The video will include many active demos that you as teachers can share with students. 

 How is the length of a wavelength measured? Using nodes and antinodes...