It can be difficult just by looking at apples to know when they've reached their ripest point,
and it's wasteful (not to mention disappointing) when you leave an apple out for so long that it becomes too mushy to eat. But now, technology may have a solution.
Scientists at MIT have developed a handheld device that can evaluate how ripe an apple is by measuring the glow of chlorophyll in the fruit's skin under ultraviolet light.
Such a gadget could make a big difference for apple distributors, who sometimes have to guess when deciding where to send their stock. Apples in grocery stores are available year-round, but they only grow in certain seasons, and so shipping has to be carefully coordinated. The ripest apples should ideally go to places where they are likely to sell out quickly, but that doesn't always happen, according to the scientists. [10 Technologies That Will Transform Your Life] https://www.livescience.com/56040-handheld-device-tells-if-fruit-is-ripe.html
