Tamsin tests the speed of light through diamond (1.24×108 kilometers per second).

“You won’t find anything,” Sandy says helpfully. His eyes are earnest. “It’s not like you’re going to supplant Einstein, honey! Don’t get above yourself!”

Tamsin tests the speed of light through a cristobalite sphere suspension.

“I was hoping we could talk about your budget allocation.” Sandy’s a little firmer this week.

Tamsin tests the speed of light through Bose condensate.

“These results are faked,” snarls Sandy. “And when I prove it you’re going to be branded for exactly what you are–”

Tamsin tests the speed of light through Sandy.