当夕阳没入荒漠一隅的村落而且太阳能电池板关闭的时候,该用什么能源提供夜间用电呢?是使用电池还是旧式的柴油发电机?也许,人们还可以使用某种新能源。哈佛大学工程与应用科学学院(HSEAS)的物理学家设计了一款设备,使用该设备可采集地球向外层空间发射的红外线能量。研究人员称,在太阳的照射下,地球的温度高于外层空间的温度。利 What energy is used to provide nighttime electricity when the sun sets in a desert village and the solar panels are off? Is it possible to use a battery or old-style diesel generator? Physicists at Harvard University’s School of Engineering and Applied Sciences (HSEAS) have devised a device that uses the device to capture the infrared energy that Earth emits into outer space. The researchers said that in the sun, the Earth’s temperature is higher than the temperature in outer space. Lee