Dome or flat section? ----- Original Message ----- From: "Norm !" <inter.graphic@qc.aira.com> To: <personal_submersibles@psubs.org> Sent: Saturday, April 28, 2001 8:17 PM Subject: [PSUBS-MAILIST] Acrylic formula ? > Is anybody know a formula to calculate > > how thick the acrylic must be for a specific diameter and pressure ? > > > Thanks ! > > Norm .