The causes of heat stress include wearing heavy clothing, physical work or exercise, hot weather and high humidity.

VOA: special.2011.08.09

But it's a good story, Joule decided that there must be a direct relationship between work and heat.

所以说，这只是一个不错的故事而已，焦耳认为功和热之间,一定具有某种直接的联系。

麻省理工公开课 - 热力学与动力学课程节选

And the idea was that gravity did work on the water and falling, and that work led to the generation of heat.

焦耳的想法是,重力对水，做了功。

麻省理工公开课 - 热力学与动力学课程节选

Melting pots only work with a heat source and a stirring spoon.

FORBES: The Great Relearning

The discovery surveys done under the RCAHMW flying programme in extreme weather conditions - they carry out the work in the heat of summer too - mean "sometimes the story of Wales gets flipped on its head, " said Dr Driver.

BBC: Snow survey uncovers prehistoric sites in Wales

Conventional cooling techniques such as fans and heat sinks do not work as well with the 3D technology, particularly as heat has to be drawn away from between the individual chips.

BBC: IBM aims to cool chips with water