The four of them were sitting round a table covered in the pages of Spaceguard's calculations. It reminded Josh of being in Zack's bedroom where scribbled numbers always littered his desk.
I don't know what half of this means, Zack said,waving his hand at the sheets of paper. But look.This bit's about geometry
Josh's mum interrupted.
The rocket trajectory.
Yes.It's in metres, right?
Yes.
So,where does it get converted into imperial units : feet and inches?