Find out how to preserve vaccines without refrigeration for months
Vaccines are not good if damaged by heat during storage when moving. Therefore, how to keep the quality of the vaccine always makes scientists have to calculate.Turn cockroaches into fuel cells
Case Western Reserve University experts (USA) have exploited the metabolic system in cockroaches to convert into electric current.Technology keeps the flavor of frozen vegetables
Researchers in Sweden have developed a method of freezing fresh vegetables, which helps preserve the flavor and toughness of vegetables after thawing.