happened on 3 February 2012 <a href="http://eude.nl/">Edo Paulus</a> (NL) talks about <a href="http://eude.nl/projects/sonorb/">SonOrb</a>: a permanent, interactive sound installation for groups children aged 7 to 12 years old Edo Paulus (NL) talks about SonOrb: a permanent, interactive sound installation for groups children aged 7 to 12 years old.