115 divided by 2 equals 57.5
As the temperature decreases, the rate of radiation goes down, but the radiation exists as long as the temperature is above the absolute zero, which is actually 0 Kelvin. 0 Kelvin equals -273°C or -460°F. All objects in the world radiate if above that temperature.
Latent heat, energy absorbed or released by a substance during a change in its physical state (phase) that occurs without changing its temperature.