Once the science club figured out that sound waves could be used to help Josie, they decided to use them on the laptop. But wouldn't Pr. Z. be a little upset at that? That laptop could have important information about a lot of things: class schedules, black hole related stuff, etc. Besides, you can't exactly buy a laptop at the 99cents store!
The dining room and the detentions room are the same room
Vaughn: (To Lucas) Whatever you have in your head about me, don't let it hurt Josie.
Corrine: Does something about this picture look wrong to you?
Marshall: Well they say the camera adds ten pounds.
(Corrine hits Marshall)
Nanotechnology first aired on Halloween weekend in the US, and since this episode aired on October 30 it was given special effect graphics and sounds to commemorate the Halloween season. Subsequent airings did not have these special effects.
A month has passed since Camoflauge in this episode ( Marshall and Lucas don't have detention wiht Tyler and they recieved a month's detention for spraying Durst with a hose in the last episode)
The jacket Michael Seater (Lucas) wears in this episode is the same jacket Jeff Douglas (Professor Z) wore in his Canadian-based movie "Touch & Go".
Janitor's secret message: "One rival reaches out to another. Deception leads to danger. The true enemy is revealed."
Lucas mentions in this episode his father had a kidneystone ( this is similar to in Radio in season 1 when Vaughn mentins his uncle Jeff had a kidney stone.)