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Posting new threads at the site has been fixed.
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| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
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http://www.lenardaudio.com/main/051_opal_const.htmlregardshorny...
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http://www.lenardaudio.com/main/051_opal_const.htmlregardshorny...
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The Valve Technology Milestone Timeline Courtesy to the National Valve Museum
1640
The first vacuum. Otto von Guericke's air pump
1643
The barometer first demonstrated by Evangelista Torricelli
1654
Magdeberg Hemispheres a d...
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