Hi guys, I'm one of those physics buffs (MPhys(Hons) Physics with Astrophysics, PhD High Energy Astrophysics), and I have an idea. I'm used to the fast paced DDF needing post-and run-tactics, so apologies if I repeat anyone's ideas
- The main problem with sudden impacts etc. is the so-called impulse (force over time). The reason why high speed collisions are so devastating is that your speed changes drastically over an extremely short time; airbags work by making the deceleration slower (same force over a longer time = lower impulse).
- A moving body will carry on in a straight line so long as no forces are acting on it. Any change in speed or direction is acceleration, and requires force. However, it may be possible for some system to spread that force over longer times than they actually happen in.
- There could be two hulls, with a damping fluid/shock absorbers between the inner hull and the outer hull; this would be like silastoplaston for the whole interior. Maybe the some of the energy in the smashing fluidy bit could go towards powering the ship (on a side note, I'm in the US and suddenly pining for Jaffa Cakes).
- In the case of transparent cockpit windows, as seen in some concept art, the window would be in the outer hull; so long as you don't have anything connecting the window to the cabin, you'd be OK
- This would allow an open interior structure with movement between the cockpit and bunk etc, maybe connection to any passenger bits during normal flight. I can imaging uneventful space travel would involve long periods without acceleration

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- However, equipment, food etc would be in well-secured containers.
- Just like airlines however, it might be recommended for everyone to be belted into their seat just in case of sudden movements (such as pirate attack).
- In one of the DDF threads, someone from FD said this in reply to a question (I'm paraphrasing here): a person orbiting the Sun will never be in the same instance as someone orbiting the Earth. This suggests that we will be jumping between celestial bodies within a system (star, planets etc.) as well as between star systems. This allows for much slower real-space travel and less powerful thrusters.
- Even with an open interior, I would expect space to be at a premium, with every inch used
- There will be some up/down orientation when docked or planetside, and I am sure that this will be factored into designs of the interiors; however, there's nothing to prevent us from using the walls and ceilings.
- I hope this can be of some use
