Small, cylindrical Goa'uld device designed to project an enormous three-dimensional image, generally of a Goa'uld commander, summoning troops, giving orders, authorizing spokespersons, or dispensing other messages to battalions of Jaffa. Use of the vocuum during battle operations is strictly forbidden in the Rules of Engagement. KEY EPISODE(S) - Rules of Engagement - Carter successfully merges the vocuum with Earth-based technology, allowing a playback of the dying Apophis to be displayed to his unsuspecting human troops.  |
