And inevitably, the aliens do return. After a little fine-tuning, the countermeasures do work, but the aliens adapt, and humans adapt to the adaptations. Rinse, repeat.
In concept, The Ultimate Weapon bears some similarity to Clarke's Superiority -- only without the irony, wit, and characterization. Which, let's face it, is what makes Superiority a classic of the genre. The Ultimate Weapon is, instead, filled with enough technobabble about magnetic fields, element-90, and proton beams to fill an entire season of Star Trek: Voyager. About 40,000 words worth of technobabble, to be exact. It's a wonder Campbell found room for any plot.
Nor is the technobabble scientific, even by the standards of the Campbell Era. There are more howlers in here than the monkey-house at the zoo. For example, Campbell comments that gravity on Deimos is so light that a man can move a 100,000 ton spaceship by himself. Ignoring for a moment that Campbell is ignorant of the difference between weight and mass, such a ship would still weigh 40 tons on Deimos.
And that's nothing compared to the ending, in which Heisenberg's Uncertainty Principle allows the Earthicans to build an Infinite Improbability Drive.





