For every Tom Swift novel there are at least one or two inventions that just seem to be "there" as if they always existed. Or, they are important but they don't really get described as to how they came into being or how they function. This book, like the other five in this series, aim to fix that.The ten stories in this collection are individually shorter than previous novellas, but they don't need to be lengthy. These are about 6,000 words each and...