Brian Thomas Smith credited as playing...
Zack Johnson
- Zack: Is that the laser? Bitchin'.
- Sheldon Cooper: Yes, in 1917 when Albert Einstein established the theoretic foundation for the laser in his paper "Zur Quantentheorie der Strahlung," his fondest hope was that the resultant device be bitchin'.
- Zack: Well, mission accomplished.
- Zack: One question. How can you be sure it won't blow up?
- Leonard Hofstadter: The laser?
- Zack: The moon!
- Sheldon Cooper: See, now this is a man for Penny.
- Leonard Hofstadter: That's a great question, Zack!
- Sheldon Cooper: No, it's not!
- Penny: Sheldon, play nice.
- Sheldon Cooper: Well, it's not a great question! How could someone possibly think we're going to blow up the moon? That's a great question.
- Leonard Hofstadter: [to Zack] Don't worry about the moon. We... , we set our laser to stun.
- Zack: That's your big experiment? All that for a line on a screen?
- Leonard Hofstadter: Yeah, but, uh, think about what this represents. The fact that we can do this is the only way of definitively proving that there are man-made objects on the moon, put there by a member of a species that only 60 years before had just invented the airplane.
- Zack: What species is that?
- Sheldon Cooper: I was wrong. Penny can do better.
- Leonard Hofstadter: Now, we'll be able to see the beam when it leaves, but it won't be strong enough when it comes back to be seen with the naked eye.
- Zack Johnson: [looking at Penny] Naked.
- [laughs]