"Sure. As we know, the amount of energy radiated from the sun upon a spot the size of our solar tube is a matter of peanuts compared to the stuff we get out of it. Ergo, our beam must go to Sol and collect the power and draw it back down the beam. Measure the transit-time, and we'll know."
"That's an idea. I've got a micro-clock in the lab. We can measure it to a thousandth of a second. Anyone like to get shook up?"
"How?" asked Jim.
"Snapping from zero to 1-G all to oncet-like isn't too gentle. She'll knock your eyes out."
"Sounds like fun. I'm elected."
"So am I," insisted Christine.
"That's out," said Jim. "I know what he's talking about."
"So do I," said Arden. "Don't do it."
"Well, what better have you to offer?"
"You and I are going down to the Mall."