The strength, temperature and time for which the developer is allowed to act allow the photographer to control the contrast of the final image.

Already, early snows and cold temperatures have allowed some ski areas to open well ahead of schedule.

The low temperature allows the gas to be put to use more easily in many applications, particularly to drive turbines.

This time, night matches and cooler temperatures will allow the Europeans to apply constant defensive pressure.

Those higher temperature now allow tropical pet fish being abandoned by their owners to survive the cold Japanese winters.

"The star's low temperature allows the planet to survive so near to the star."

The small star's relatively low temperature allows the planet to exist.

The temperatures allowed the resort to make enough artificial snow to open on Nov. 7, two weeks earlier than usual.

Higher temperatures allowed the Eastern subterranean termites to remain close to the earth's surface during months when the cold usually forces them deep below ground.

The high temperature allows the steak to char in a short enough time that the inside remains uncooked.