Where does the iris go when it is open?
31815
Where does the iris on the SGC stargate retract to?
68494
Should ol/ul be inside  or outside?
85187
What happens if you reach the gold with both (blue and green) doors?
34288
Node access based on view mode
102041
Pinpoint the area light to object
135454
An open interval is an open set?
141771
What is the benefit of a wide-aperture lens if you stop it down?
154151
How do single photons travel from here to there
146857
Possible (but not serious) glitch in close/reopen
5901
What exactly happens with the button "Leave Open" (previously "Do Not Close")?
1524
Is There a Difference Between Entering an Active Stargate on One Side Or The Other?
5219
What happens to objects that enter a Stargate from the destination side?
3002
How to focus on the selected object?
32879
How does light speed up after coming out of a glass slab?
99236
Interior of closure of an open set
133184
Sauron's sight details?
112411
What happens when a photon reaches the "edge" of the universe?