当夏天热得“不要不要”的时候,如果能吃个冰激凌,吹吹空调,该是一件多么惬意的事情啊。但你知道没有冰箱、空调的古人是怎样“制冷”的吗?下面就让小编给各位淀粉科普一下。人类“制冷史”人类最早的制冷方法是利用天然冷源(如冰、雪和深井水等)来防暑降温或冷藏食品。我国早在两千多年前,就有了储藏食品的“冰 What a pleasant thing to eat if you can eat ice cream and air conditioner when the summer is hot. But you know there is no refrigerator, air conditioning is how the ancients ”refrigeration “ below? Let Xiaobian starch science to you. Human ”refrigeration history “ The earliest human cooling method is the use of natural sources of cold (such as ice, snow and deep well water, etc.) to prevent summer cooling or chilled foods. As early as two thousand years ago in our country, there was a storage of food ”ice