Or I could have a non-adiabatic, I could take the same temperature change, by taking a flame, or a heat source and heating up my substance. So, clearly q is going to depend on the path.

也能改变温度，绝热指的是没有热传递，在非绝热条件下，也同样可以升温,比如用火或者热源加热，这样，q也应当与路径有关。

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"It's a very reassuring feeling to turn on the stove, see that blue flame and know you had a part in bringing a stable energy source to your community, " Glenn says.

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The Olympic flame burning in a corner of the stadium seemed to be the only source of heat.

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