Joule actually did this experiment, and he observed that for the gas expansions that he could do, that the temperature did not increase measurably.
事实上焦耳的确做了这个实验,他做到了,他能达到的最好实验要求,发现在可测量范围内没有观察到温度上升。
You ignite the food and burn it, and you see how many degrees centigrade the water gets raised, and that's the measure of calories.
点燃食物使其燃烧,然后观察水的温度上升了多少,就测量了这种食物的卡路里
Does the temperature go up?
温度上升了吗?
And so, we have this cartoon. Again, we have an open beaker and a candle, and we're putting only heat into this beaker, T2 and the temperature goes from T1 to T2.
好的,我们要再次利用这幅图,这有一个敞开的烧杯和一根蜡烛,我们对烧杯加热,温度从T1上升到。
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