An acoustic test in which a shopper knocks on six watermelons and buys the one closest to the cart.[1]
Method
Tap the melon twice, pause, and nod. The pause is essential. It lets nearby shoppers know you heard something they didn’t.
Interpretation
A hollow sound is widely considered promising. When all the melons sound hollow, researchers move on to the secondary test of looking at the prices.
Peer review
If a stranger asks what you’re listening for, hand them the melon and say, “Hear that?” The test is complete when they nod back.
See also
References
- ↑ Journal of Grocery Store Acoustics. “Listening for Something.” Summer issue.
- Six melons were consulted. One was purchased.