I have a semi-related question to your NICAD question. How do you prevent the boiling away of the electrolyte in the vacuum of space? Are the spacecrafts sealed/pressurized? Are the batteries sealed? Thanks Kevin, WB5RUE el09vf ---- Via the amsat-bb mailing list at AMSAT.ORG courtesy of AMSAT-NA. To unsubscribe, send "unsubscribe amsat-bb" to Majordomo@amsat.org