Emergency broadcasting, for one. You cannot beat radio as the cheapest way to communicate to the masses. A radio can be portable, entertaining, and working in most locations. The radio is a mature technology and the device is very inexpensive. A radio does not require a lot of energy to run -- a hand-crank one can work too.
Radio waves are helpful for people as they allow for the transmission of information, such as news, music, and emergency alerts, over long distances, enabling communication and entertainment. They are also used for technologies like WiFi and cell phones, providing connectivity and access to information. Additionally, radio waves are used in various scientific and medical applications, such as MRI machines and radio telescopes.
They peole on telivision send waves to your t.v...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................
Keep going......................................................................................................................
You guys are stupid dumb asses if you think this was acutally right.
Radio waves are transverse waves. This means that the oscillations of the waves are perpendicular to the direction of energy transfer.
Electromagnetic waves used for communication include radio waves, microwaves, and light waves (in the form of lasers). These waves are commonly used in technologies such as radio communication, satellite communication, Wi-Fi, and fiber optic communication.
No, electromagnetic waves that are felt as heat are called infrared waves, not radio waves. Radio waves have lower frequencies and longer wavelengths than infrared waves.
Radio sound is heard through the use of radio waves, which are electromagnetic waves that can carry information from one point to another. These waves are transmitted from a radio station and received by a radio receiver, such as a radio or smartphone, which then converts the waves into sound waves that we can hear.
AM radio waves and radio waves in general are both electromagnetic waves used for transmitting information through the air. The main difference is that AM radio waves have a lower frequency and longer wavelength compared to other radio waves. This allows AM signals to travel longer distances but with lower audio quality compared to higher frequency radio waves.
Radio Waves! (:
Not very. As far as I know there's no real evidence that radio waves cause any measurable harm to people.
no, mechanical waves are not radio waves
Radio waves ARE electromagnetic waves.
Radio waves are transverse waves. This means that the oscillations of the waves are perpendicular to the direction of energy transfer.
Radio waves are harmful to people because they give off radiation. Radiation is known to cause cancer in humans.
No. Radar waves are one category of radio waves. Think of all the radio waves that are all around you right now . . . AM radio, FM radio, police and fire radio, highway patrol radio, taxi radio, television picture and sound radio waves, cellphone radio waves, garage-door-opener radio waves, bluetooth radio waves, WiFi waves, microwaves ... and you can't see any of them ! Radar waves can easily be there in the group.
People use radio waves to transmit and receive information wirelessly, such as in radio broadcasts, cell phone communication, and Wi-Fi connections. Radio waves are electromagnetic waves that travel through the air and can be encoded with data for various purposes, making them a versatile and essential tool in modern communication.
Light and heat are very helpful to human beings, and radio has become pretty important too.
That's like asking "What is different between children and people ?".Radio waves are electromagnetic waves.
by changing the amplitude or frequency of the radio waves.
Radio waves are electromagnetic waves occurring on the radio frequency portion of the electromagnetic spectrum.