They found that a city with only white rooftops could reduce the urban heat effect by thirty-three percent.

VOA: special.2010.03.02

By nineteen forty-five, there was a lot of heat in a lot of different areas -- professional baseball was certainly feeling that.

VOA: special.2009.04.05

But as if it depended upon that hot-blooded princess, her soul at a white heat under the fires of sadness and jealousy.

VOA: special.2009.04.18

This could be a serious problem. The shield protected the spacecraft from burning up from the extreme heat of re-entering the Earth's atmosphere.

VOA: special.2009.06.17

It would leave the atmosphere briefly, then return, testing the effects of the extreme heat of re-entry.

VOA: special.2010.07.07

The walls were built extra thick to save heat and energy-efficient appliances kept energy use low.

VOA: special.2009.10.27

A BTU is the amount of heat energy needed to raise the temperature of about one-half kilogram of a substance by one degree Fahrenheit.

VOA: special.2010.11.23

No-till keeps carbon in the soil and avoids the release of heat-trapping gases from motorized equipment.

VOA: special.2010.09.28

Now heat the dye for about forty-five minutes or until the wool is the desired color.

VOA: special.2010.08.02

Black-painted surfaces that receive the sun's heat become hotter than surfaces of any other color.

VOA: special.2009.04.20

What you want to do is heat your base bead until it's that honey-like consistency.

VOA: special.2009.05.18

The radio silence, caused by the heat of re-entry, lasted for seven minutes.

VOA: special.2009.06.17

Bring it to a boil, then immediately reduce the heat to eighty-two degrees.

VOA: special.2010.08.02

toward an eighty percent cut in heat-trapping pollution by two thousand fifty.

VOA: special.2009.07.11