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看到这个标题，很多人都会想，切蛋糕谁不会啊？然而伦敦一名数学家在YouTube视频中展示了最佳的切蛋糕方式。您别说，还真有那么点道理。 他认为传统的楔形切蛋糕方式容易让蛋糕变干，而最好的方法是从中间切并行线，取出中间长条段食用，这样剩下的蛋糕就能合并起来，如果是冰淇淋蛋糕，就能保持内部密封新鲜。 Forget everything you know about cake cutting; this new method could turn the seemingly straight-forward practice on its head. Although, using the word ‘new’ isn’t accurate, because the method is actually a 100-year-old trick unearthed by London-based author and mathematician Alex Bellos. In his latest YouTube video, Bellos describes how taking wedges out of cakes leaves them susceptible to drying - and we should instead be cutting them in lines so the whole cake can be sealed and stored. Known on YouTube as Numberphile, Bellos first explained the problems with modern methods of cutting cakes. Namely, he said that if a wedge is taken out of a cake but the rest of the food is then stored in the fridge, the edges of the cake open to the air will be ‘dry and horrible’, Bellos says. ‘You’re not maximising the amount of gastronomic pleasure that you can make from this cake.’ There is instead, he explained, a better way of cutting cakes that dates back more than a century. | 
