the final episode of the Stargate: Atlantis three-parter
The Siege, which kicks
off Season 2, Rodney McKay contacts Elizabeth Weir and Major
Sheppard from the control room and informs them: "You're going
to want to get up here." Without asking him why, Weir and
Sheppard head straight for the control room. Why doesn't McKay
simply tell them the reason for his call (that twelve Wraith
hive ships are on their way) over the intercom, and why don't
Weir and Sheppard ask? Precious time is wasted while they
dash up to the control room to be told what is happening.
in this episode, Ford grabs a pistol from a guard in the infirmary
and demands that Dr Beckett hand over a bag of the Wraith
enzyme he needs to survive. To show that he means business,
he points the gun at one of the patients. Beckett gets the
enzyme and throws it to Ford. However, the gun starts off
in Ford's left hand, but then he uses that hand to catch the
enzyme and suddenly the gun has become a semi-automatic.
finally, in the same episode, I noticed a really silly weapons
design. When Sheppard is skulking around dark corners looking
for Ford, the fact that his gun has huge yellow glowing rings
down both sides of it sort of gives his position away! What
is the point of this design?
answer to your three questions...
Ah yes, they also do that sort of thing a lot in the Star
Trek series, because it's dramatically exciting.
the explanation within the context of the episode is that
the staff of Atlantis all wear headset earpieces and microphones.
Therefore Rodney could continue to relay information to Weir
and Sheppard while they are en route to the control room,
thus potentially saving - rather than wasting - precious time.
The fact that Weir and Sheppard seem to squander that time
on idle chitchat about McKay's recent lack of sleep is beside
Careful examination of the scene, by pausing the action, reveals
that the pistol is still in Ford's left hand when he catches
the enzyme. He is, in fact, holding two guns. The semi-automatic
is in his right hand.
Again, it's because it's exciting: it looks cool. This weapon
was probably designed by the same division that makes those
very conspicuous beeping LCD-display bombs for the James Bond
though, perhaps this is Ancient technology that emits a wavelength
of light that humans can see (so as to prevent friendly fire)
but the Wraith cannot.