It’s summer. And nothing is worse than hauling home some 20-pound watermelons – only to find that they are mealy and tasteless. It has happened to me before. But it seems it’s time to end the misery – a new smartphone app named “pick a good watermelon”, developed by a group of Chinese university students, now tries to solve the ancient task of choosing a perfect watermelon, according to Chinese media reports…Full-text article: South China Morning Post June 2013

Key point

The “Watermelon App” works by analyzing the sound a melon makes when it is tapped by the consumer. If a hollow thumping sounds is detected, then the watermelon is determined to be ripe and ready for consumption.