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Death's cackle, your voice, anything not of Earth( science fiction doesn't count, even though it may be true).

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What is is radio sound heard through the use of?

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.


Why sound cannot be hear in vacuum?

Sound relies on particles of matter to transfer its energy. For instance, when you speak, that sound wave travels through the air particles, pushing each one towards the next with the message of sound to the ear of another person for example. Even in water, sound does travel, but it's harder to hear because water is so dense. In a vacuum, there is no air, so no air particles to carry the sound, and thus, no sound can be heard.


Does speed increase for an observer that stays in one spot when the source of a sound is moving?

No, the speed of sound is constant in a medium, so the speed of sound heard by an observer staying in one spot does not change if the source of the sound is moving. The frequency and wavelength of the sound may be affected by the motion of the source, but not the speed.


Does a sound have to be heard to be a sound?

Tough one. You're asking: Is the sound the vibrations in the material medium, or is the soundthe sensation in the brain of a person or animal ?I'm an engineer, and here's my personal opinion: To me, the sound is the vibration in the material medium,and it doesn't care whether or not there's anybody there to hear it.So when a tree falls in the forest and there's nobody there to hear it, yes, it still makes a sound anyway.And when a man speaks in the forest and there's no woman there to hear him, yes, he's still wrong anyway.


What the smallest amount of sound is that can be heard?

Zero dB is the quietest sound that may be heard by the average of a group of young men who have not been noise exposed. By definition, one half of these will be able to hear a quieter sound, and the other half will be less sensitive. Nowadays, these limits are more precisely defined in terms of physical units. Some animals hear at a different sensitivity to us, and over a different frequency range.

Related Questions

What is the sound heard here?

It is the sound of one hand clapping.


Who first heard of sound?

the first one to hear a sound is obviously the first man on the earth!


When was Stop Me If You Think You've Heard This One Before... created?

Stop Me If You Think You've Heard This One Before... was created in 2003-11.


When was the loudest sound of a volcanic eruption heard and in which year?

The loudest sound of a volcanic eruption was heard during the 1883 eruption of Krakatoa in Indonesia. The sound was heard over 3,000 miles away and is considered one of the loudest sounds in recorded history.


When was Stop Me If You Think You've Heard This One Before created?

Stop Me If You Think You've Heard This One Before was created on 2007-04-02.


How do you catch darkrai in Pokemon pearl without cheat or action replay?

There is a event or not i think i heard... no wait i think i heard that there is a event. and the people you have to go to gives you the key to the locked house in the town for the 6th gym leader. and there are 3 maps. i don't know which one you have to pick. that's all i know.


What is the name of the second spirit movie?

hi i know theres a lot of talk about one on youtube and everthing but i havent heard of an official one coming out i dont think?


Why is it said when a tree falls in the forest no sound is heard?

because no one is around to hear it!


Where can you download GTA SA Stories?

Well right now I don't think there is a SA Stories. But I heard there will be one soon. But I don't know how true it is.


Is bike one of the words with the short you sound?

Yes, the word "bike" has the short "i" sound. The short "i" sound is commonly heard in words like "sit," "lid," and "dig."


Who manufactured a car with the model name temptation?

Never heard of any model with that name. Pontiac Tempest is the closet one I can think of.Never heard of any model with that name. Pontiac Tempest is the closet one I can think of.


Sound heard in one ear but not in the other during bone and air conduction?

conduction deafness