Remember that the body requires food and nutrients to make heat, so going out without eating enough or being dehydrated can put you at risk.
When water changes from gas to droplets, this makes heat.
But lamps made heat, so for the most part people preferred the dark.
Three factors made sound travel faster: heat, pressure, and salinity.
The Sun makes light, heat and the solar wind.
There was undoubtedly a long lag between making heat and getting lift.
We will look at the parts of the sun, find out how it makes light and heat, and explore its major features.
Ninety percent of the electrical energy a light bulb uses goes to making heat.
A lamp is a device that makes light and heat.
You are squeezing the box containing a bouncing ball, and it makes heat.