How did Tom Swift solve the oxygen supply problem?
As one might guess, keeping the space station supplied with oxygen is a very important task. Finding a cheap, efficient way to provide oxygen, however, can be very daunting. Tom Swift Sr., however, found a good way to solve this problem, as the following conversation reveals: “Having trouble, son?” he inquired sympathetically. Tom nodded. “It’s the air supply, Dad. I never realized until now the great amount of oxygen the crew of the space station will use up every day. The average man consumes about three pounds of air during a twenty-four-hour period. Even transporting oxygen in liquid form could mean a real supply problem.” “Perhaps it might be possible to manufacture your own oxygen,” Mr. Swift suggested. “Or, at any rate, enough to supply part of your needs. Day, by a process of photosynthesis.” “You mean, by using green plants to give off oxygen?” Tom asked doubtfully. “That’s the idea. Of course no ordinary plants would do, but I seem to recall reading somewhere–” The ender sci
