Corrected entry: When Wesley demonstrates his miniature tractor beam, he looks over his shoulder. The controlling device in his hands shakes a little during it - but the model stays very calm in the air. (00:18:10)
Corrected entry: Even after La Forge wanders out of sick bay, the display above his bed continues to register his vital signs.
Correction: Not a mistake. As seen several other times in the series, the Enterprise's computer is capable of reading the life signs of it's crewmembers anywhere on the ship. That LaForge's signs appear on the medical display, is simply a matter of output chosen previously by the doctor.
Correction: Wesley is more than intelligent enough to design the device to compensate for minor movements by the user; he wouldn't want the object being tractored to be shaken unnecessarily.
Tailkinker ★