Figure 1. A sound machine near a wine glass. Taken from [17]

From

Does Temperature Effects Tpropagation and Growth of Cracks in aWine Glass Tuning Nearest to a Sound Machine

M. Tsili, D. Zaxaropoulos

American Journal of Mechanical Engineering. 2017, 5(3), 91-93 doi:10.12691/ajme-5-3-4