Many grown-up folks have fond memories (or not) of hot, sweltering summer days. Such hot days are usually the best time to grab a cool, soothing and tasty soft-serve ice-cream. But because it was so hot, the ice cream tended to melt too quickly and folks and their little ones had to slurp on the cone quickly to enjoy a few more divine licks before the whole ice-cream melted away to nothing. Perhaps the folks in Great Britain have endured one unusually hot summer too many. Scientists over there are developing a slow-melting ice cream. Greedy lickers may be asking...