As a "thermographer" I make heat and cold visible using infrared cameras. Obviously a nice thing within the film world, but there are many applications that can be imagined, especially in the fields of education, energy, food, real estate, science and innovation. In any case, it is important that there is a hot or cold story to tell. Instead of light, thermal images require thermal contrast. Examples of clips can be found at www.worldofwarmth.com.