A inference is a statement based on your experience.
There are similarly spelled words:inferred (verb) - suggested but not directly saidinfrared (light) - a longer wavelength than red visible light, radiated heat energy
All objects on Earth emit IR radiation, or heat, which can be detected by electronic sensors, such as those used in night-vision goggles and infrared cameras. A simple example of such a sensor is the bolometer, which consists of a telescope with a temperature-sensitive resistor, or thermistor, at its focal point
The heater does not blow air because it emits infrared rays that have heat molecules within them, thus releasing heat, not blowing it. A heater does not blow air becasue there is no moving air source within the heater. The heater emits infrered rays that cause heat to slowly flow out of the heater.
Radiation is photon or light. We give name for radiation by its' range of wavelength. Those with wavelength < 0.001 nm is called gamma ray, those below gamma to just about 0.1 nm is x-ray and those below x-ray are UV and visible light. Our visible light is light with wavelength 400-700 nm below that are infrered, microwave and radiowave.