葡京现金游戏

Sound solution to the pistachio problem

作者:强趱    发布时间:2019-03-03 06:07:07    

By Anna Gosline GRAB a handful of pistachio nuts and you will usually find several with shells that are closed so tightly they cannot be eaten. But soon you might be able to enjoy the snack without this frustration. A gadget that listens to the distinctive pings made by nuts when they bounce off a surface could help to sort open-shell nuts from uncrackable closed ones. Ripe, open-shelled pistachios, which fetch top dollar as a snack food, have to be separated from sealed unripe ones,

 

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