The Science of Roger Braddock
Science fiction is rarely scientific. As someone who’s going into astrophysics, I tried to add some science fact into Roger Braddock: Space Explorer, but given that this was supposed to be written by people in the early 1940s (when liquid-fuel rockets were considered the height of technological achievement and nuclear power was still, as far as most people knew, science fiction), there were some...challenges.
The Spaceship: In 1942, not even V-2 rockets existed yet. But even though it was still a relatively new field, it was becoming clear that rocketry was the way to get to outer space. So when you picture the Athena (Roger Braddock’s ship), picture something like the Saturn V (the rocket used for the Apollo missions in the 1960s) shown below:
The Laws of Physics: Force = mass times acceleration. We all learn that in high school physics. Some people (like me) feel dizzy just from being a car when someone floors the gas pedal. So accelerating a rocketship fast enough to travel slightly over 4 light years in about a week, like the Athena crew does...well, let’s just say it’d be a lot worse than a headache. So in order to prevent the crew from dying horribly just from the sheer force of acceleration, the Athena is outfitted with a device called an “intertia negator”. This completely made-up invention is something I’ll never describe in depth because I have no idea how it could possibly work (or if it would ever even be possible to build, even 250 years in the future), but it does exactly what the name implies: it negates inertia, allowing the crew to, in Eris’s words, “go from zero to oh-one in under ten seconds.” Without dying.
Gotta Go Fast: When discussing faster-than-light travel, the normal vocabulary used to describe speed - miles or kilometers per hour - becomes basically useless. Instead, the crew discusses speed in relation to the speed of light. “Oh-one,” for example, is shorthand for .01 lightspeed, or 1% lightspeed. (Which sounds slow, but it’s actually about 6.7 million miles per hour!)