The following table gives the speed of sound in selected solids.

Most types of glass and ceramic have a speed of sound of about 5000 meters per 
second. In air it is about 340 m/sec which is 767 mph.

Diamond 
12000
Pyrex glass 
5640
Iron 
5130
Aluminum 
5100
Brass 
4700
Copper 
3560
Gold 
3240
Lucite 
2680
Lead 
1322
In Fresno, however they found a local crystal in which sound can apparently zip 
around much faster. A factor of over 4 times faster thanks to “phasons”.

https://www.ornl.gov/content/supersonic-propagation-lattice-energy-phasons-fresnoite

The crystal is named “fresnoite” which is probably the best thing to come out 
of Fresno since Slim Pickens. “A good place to be from” as they say, with the 
emphasis on from.

There are implications to phasons which are not mentioned… possibly even 
implications for LENR…


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