A recent disturbing statistic says that Americans throw away almost 50 percent of the food they buy. The main reason for this is that food “goes bad” or no longer looks appealing to eat. What’s needed is a better way to store it so that it stays fresher longer. The National Award Winner from Spain of the James Dyson 2013 Award would do just that.   The OLTU, a system that uses the heat generated by refrigerators and uses the…