1. Scientific ideas and gadgets in science fiction are either completely speculative (contrary to current scientific theory) or extrapolative (based on current scientific theory or practice, but extended beyond present-day reality).

Into which category does the discussion of scientific material in Have Space Suit—Will Travel belong?

2. Why do you think Heinlein's editors objected to the last scene of the novel, in which Kip throws a malt into Ace Quigley's face? Why do you think Heinlein left the passage intact?

3. Kip's trip from the Earth to the Lesser Magellanic Cloud, via the Moon, Pluto, and Vega V, takes only one day of Earth time. On what scientific speculation is this incredible feat based?

4. At the galactic trial, the Neanderthal is judged not to be a direct ancestor to Kip and Peewee. lunio, the Roman centurion, is judged to be only "a cousin." Does this...