human
Are you there, Tom?
gpt
Yes Dad, is anything the matter?
human
No, but I thought I'd like to see what luck you have. Rad was saying you were going to have a test in the dark.
gpt
I'm about ready for it, replied Tom.
human
I'm going to blow up a box that I can't see. You know how it's done, Dad, for you helped me in perfecting the luminous charge, but it's going to be something of a novelty to the others. Here we go, now!