you have to use a radiation machine
Hot things give off infrared radiation, which is a form of electromagnetic radiation that lies within the infrared region of the electromagnetic spectrum. This type of radiation is invisible to the human eye but can be felt as heat on the skin.
radiation
All cell phones give off varying degrees of radiation.
Radiation
All objects give off thermal radiation.
Yes, fire gives off radiation in the form of heat and light.
Many things give off electromagnetic radiation. Cell phones, the body, x-rays, and supposedly ghosts and spirits. EMF detectors (or electro-magnetic-field detector) are also supposed to pick up electromagnetic radiation given off by anything it's pointed at.
Yes - infrared radiation. If you're asking about nuclear radiation, then no.
Yes, the Earth does give off radiation in the form of heat. This radiation is primarily in the form of thermal infrared radiation emitted by the Earth's surface in response to solar energy absorbed during the day.
Microwaves emit electromagnetic radiation in the form of microwaves when they are turned on. This radiation is absorbed by food and causes water molecules in the food to vibrate, generating heat that cooks the food.
No, fans do not give off radiation. Fans simply move air around to create a cooling effect by increasing air circulation. They do not emit any harmful radiation.
A 'ray' is a term for a radiation. All objects with temperatures above 0 degrees Kelvin give off radiation called, "Heat".