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Safe and Sound

We are safe and sound.


  • Hypersonic is anything traveling at Mach 5 (five times of a speed of sound) or faster. - 18792
  • If a sound is too quiet, then no one will be able to hear it. - 34860
  Key words: Safe, Safe-And-Sound, Sound  

  Frequently Asked Questions (FAQ's)  

Question: What is noise?
  Answer: Noise is a sound, that is not desired to be heard. - 3340

Question: What audio frequencies can be heard by the human ear?
  Answer: The human ear can hear sound wave frequencies in the approximate range of 20 to 20,000 Hertz. - 166

Question: How fast does sound waves travel?
  Answer: At sea level, sound vibrations travel in the air at a speed of approximately 1087 ft. (331 m) per second. - 167


  External related links to the world ...  

Find Sounds
 Find Sounds

 Search for sample sounds and sound effects at this file search engine.

findsounds.com - 881
Sound America
 Sound America

 The largest sound file site on the internet - containing free downloadable sound files from movies, television, cartoons, comedy, and sound effects.

soundamerica.com - 882
Sound Dogs
 Sound Dogs

 Sounddogs is a online source for sound effects, production music, sound clips, free sound effects samples and loops.

sounddogs.com - 883
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  Words of Wisdom  

And he said unto him, Thy brother is come; and thy father hath killed the fatted calf, because he hath received him safe and sound.   Luke 15:27 

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  Comments and Quotes  

I would rather be safe than sorry later. I'm glad they take all the precautions they do to keep us all safe. - Joyce Dickinson - 166


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