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What kinds of signals travel without air?

people who have powers


Can RF signal travel in air medium without antenna?

Yes. An antenna is only used to receive or send a signal. A RF signal travels throughout any air medium independently of the existence or not of an antenna. Of course you will need an antenna if you want to receive the signal (which has to have, by the way, more or less the same lenght of the wavelength of the RF signal), but the propagation of a electromagnetic wave doesn't need a physical support. You can see an example with the radiotelescopes. They receive signals which come from the outer space without any physical support. Electromagnetic waves (and RF signal is one kind of them) doesn't need any physical media to travel (they travel in vacuum too!)


How fast are microwaves signals in air?

Microwave signals travel at the speed of light in air, which is approximately 299,792,458 meters per second. This high speed allows microwave signals to transmit data rapidly over long distances.


What kind of platform can a snail travel fastest?

mid air!


Why are thedifferent gases in air important to life on earth?

Without different gases there will be no air, if there is air, how can oxygen travel?


Can a permanent resident travel to Mexico via air without a passport?

No.


What kind of wave is detected by the ear?

Sound waves are detected by the ear. Sound waves are longitudinal waves that require a medium, such as air, to travel through. These waves cause vibrations in the eardrum, which are then converted into electrical signals that are interpreted by the brain as sound.


What is the speed of radar signals?

Radar signals travel at the speed of light, which is approximately 186,282 miles per second (299,792 kilometers per second) in a vacuum. In different mediums like air or water, radar signals may travel slightly slower due to their refractive index.


Can sound travel through a room with no air?

No, sound cannot travel through a room with no air because sound waves need a medium, such as air, water, or a solid, to propagate. Without a medium, there is nothing for the sound waves to travel through.


What sound cant travel through?

sound can't travel through a vacuum. or a place without air.


What travel faster a radio signal or sound in air explain?

Radio signals travel at (essentially) the speed of light, as they are electromagnetic waves like light. Sound waves travel at roughly 1200 km/h. Now you have enough information to answer your own question.


How do smells travel through the air and reach our noses?

Smells travel through the air as invisible molecules released from objects or substances. When we breathe in, these molecules enter our nose and bind to receptors in our nasal cavity, sending signals to our brain that we interpret as different scents.