less of heat

The bigger the animal is, the lower its surface-to-volume ratio; for every ounce of body mass, there is proportionately less surface through which heat can escape.

动物体型越大，其体表体积比越低；躯体每增加一盎司的重量，所能散发热量的表面就成比例减少。

Other kinds of corn have less water and do not pop. When you heat a seed of corn, the water inside makes the corn explode.

其他种类的玉米水分少，不易爆开。当你加热一粒玉米种子时，里面的水会使玉米爆炸。

He said that the bacteria should be less dangerous than those used in current lithium-ion batteries because they produce less heat, which reduces the chance of them catching fire.

这种可以附着在任何材料上的细菌电池能在室温下甚至在水里正常工作。与目前使用的锂离子电池相比，它们的危害性更低，因为发热少从而降低了着火的可能性。