Space roses, Cosmic Reindeer, Arctic space pendants, and more! ASTEROID FLYBY: Approaching from the direction of the sun, mountain-sized asteroid 2015 JO25 will fly past Earth on April 19th approximately 1.8 million km away. NASA says there is no danger of a collision. This unusually bright space rock is about twice as reflective as the Moon.
Broadcast Antennas. Radio and television broadcast stations transmit their signals via RF electromagnetic waves. Broadcast stations transmit at various RF frequencies, depending on the channel, ranging from about 550 kHz for AM radio up to about 800 MHz for some UHF television stations.
Microwave ovens use high power electromagnetic radiation (radio) at a frequency. close to 2.5 GHz to do the job of cooking. Much of the design of the appliance goes into making sure that very little of that. radiation is given off, and that it stays inside the cooking chamber where it belongs.icrowave radiation is electromagnetic radiation (waves) in the microwave portion of the electromagnetic spectrum. (An electromagnetic wave is a moving electrostatic and magne â¦ tic field. The fields are at right angles to each other, and they move through space in just this way-as moving fields.