Just stumbled upon this.
We know that humans need as close to 1G (Earth) gravity as possible, along with many other aspects of our unique home planet, in order to survive. Any deviations will negatively affect our physiology and may be deadly. The rotating environment seems to be the best solution at a certain RPM for the diameter.
Here's the problem I see with the development of any system, in my opinion, so PLEASE opine!
The future goals and efforts of our current space program, seem a bit misguided. By this, I mean focusing on Mars instead of our moon. I believe the best approach to developing living environments should be focused on using our moon as an intermediate, developmental launching pad to space. We're not that far away from the Moon, versus Mars, so resource supplies and rescues, if needed, would be more feasible.
We've seen the 'lava tubes' which would (theoretically) be ideal for establishing a lunar base, where we can develop and refine acquisition of the essential natural resources already present on the moon, like water and H3. The tubes can also protect against damage from space objects and radiation. Construction materials, equipment and tools can be developed on Earth and transported to the moon, where we can build and test prototypes for space travel, including ship parts or entire ships with rotating living environments. A rotating living environment must FIRST be constructed, tested and used for long-term living and working on the moon, before we can go any further into space. We must also determine what we can grow and harvest for food and also the best ways of waste management and recycling.
We must develop an extra-terrestrial resource acquisition program in order to venture far away from home. This may include setting up bases on other worlds in our solar system, such as the many moons of Saturn, for example. We must find resources and develop the techniques for mining them for fuel, water and food. Mining different elements and minerals, including those for whatever type of energy we'll need can't be ignored. This can help offset the cost by providing essentials. We certainly can't expect Earth to provide everything we'll need.
The core foundation for making all of this possible will be the rotating living environments and to make those environments simulate Earth as best as we can. At the same time, shielding our bodies from the destructive radiation which exists everywhere in space is ESSENTIAL. I've seen the coriolis effect mentioned in this forum. The only time the CE will be felt, is when ascending and descending. Slowing ascent and descent will minimize the affect perceived.
So many experiments, so many resources (including funding) and so much time will be needed, in order to make survival in space possible. This may take many generations to accomplish, but it may be well worth it.
ONLY when we can learn to survive and thrive on the Moon, can we even THINK about further ventures. Starting with Mars is a BIG MISTAKE. MOON FIRST, then Mars and then the Saturnian moons like Europa, Titan and Enceladus, for examples. Jupiter may simply be too dangerous to consider.
Human nature will drive us to explore and survive, maybe even beyond the death of our Sun. However, in order to preserve how we were created, we must understand ALL of the combined aspects of how our bodies have adapted and evolved and how all of the ecosystems on Earth have contributed to our existence and reproduction and we must simulate that environment to the best of our ability.
Even Earth's massive core and protective magnetic field, along with our large moon have an essential effect on most species on Earth, including us...on and on.... Everything must be considered and nothing can be overlooked.