The word of the day is "score" meaning group of 20
I first read this book as a child. This was a nostalgia purchase. For a book that was written before Pluto joined the list of planets (and well before..Show More » it was kicked off the list) it is a fun view into the nearly prehistoric days of science fiction. Never mind the science errors, never mind the paper thin plot, never mind the cardboard cutout characters, and never mind that I never caught the main character's name.
There are a couple of irritations. The perhaps nameless captain cried or exclaimed most of his dialog. There are scores of crew members, or scores of thousands of ships, or scores of hundreds of light years. Most of the time Hamilton expressed a number he gave it to you as a multiplication problem. After taking the time to explain three times why a problem couldn't be solved a particular way that was exactly the way it was resolved.
I did not like this book as much as I did as a child. I also don't regret the credit spent on it. It's a piece of science fiction history and I can respect it for that.
If you are considering delving into science fiction history here definitely listen to the sample clip. Lewis is not high on my list of narrators.