This is the first time that Bra'tac and Jacob/Selmak feature in the same episode.
Master Bra'tac states that he is 137 years old.
About 30 mins, Malek suggests raising the EM output of the base's Naquadah generator in the 400-700 nm wavelength range, in order to excite the phase particles "to make the invisible guy visible". 400-700 nm is the complete range of visible light so Malek is really saying "Make the light brighter."
This 400-700 nm range is also the "blue light" used to initiate & excite the polymerization process of resin-based, tooth colored, dental materials.
This 400-700 nm range is also the "blue light" used to initiate & excite the polymerization process of resin-based, tooth colored, dental materials.