Would it be possible to use your footage of the tuning forks in my documentary film called Terrain? Reply
Yes you have my permission to use the footage of the tuning forks, as long as it is credited to xmphysics.com Reply
xmDemo 
Would it be possible to use your footage of the tuning forks in my documentary film called Terrain?
Yes you have my permission to use the footage of the tuning forks, as long as it is credited to xmphysics.com