Where can you purchase a tuning fork?
One could purchase a tuning fork from Amazon. However if one wants to visit a more specialised web site, one would probably want to go to Indigo. They cater for science, engineering or music tuning forks.
How can exercise-related stress fractures be diagnosed with a tuning fork?
If an individual has increased pain when the tuning fork is placed on a bone, such as the tibia or shinbone, the likelihood of a stress fracture is high. Bone scans also are helpful in detecting stress fractures
the Weber test. For this test, the stem or handle of the vibrating tuning fork is placed at various points along the midline of the skull and face.
How do you tune a classical guitar without a tuning fork?
The best way to get those E notes is to use a piano. Another way, just as good, is to use another tuned guitar.
300Hz is the natural frequency of the tuning fork hence if a sound wave of same frequency hits the fork then RESONANCE occurs