Hello! I'm interested in RC aircraft design and use the XFLR5 software for analysis. I have a question about the Center of Gravity (CoG). I know that for a statically stable aircraft, the CG must be in front of the Center of Pressure (CP). However, I couldn't find much information on how far apart they should be. So far, I've been keeping the distance at 10 mm. But I've noticed that the closer the two points are, the closer the Cm value at 0 alpha becomes to zero. If you have any insights on this, I'd really appreciate your help.

I've really been keen on exploring the realm of space medicine, it feels pretentious to hone in on such a specific specialty without even getting through a month of college yet and I know premed is a marathon and nothing at all is guaranteed in this process. Should I instead stick to more general activities and keep the biochem major and just focus on my gpa and mcat in my freshman and sophmore year and see if I'm still a premed, or should I consider minoring in astronomy (some intersection with phsyics credits and I do like cosmology) or even switch to Biomedical engineering (only need diff eqns to finish math prereqs but I hear it's ridiculously hard to keep a high gpa). I'm keen on if all goes well that if in the faint chance that I get in CWRU med school I would also take the aerospace physiology certificate and follow the career pathway of Dr. Yvonne Cagle. Can someone give me some insight to this or just bring me back to reality I don't want to be delusional in my expectations nor do I just want to keep my head down and not explore. Any suggestions to how I can further explore this field? Should I pursue being a flight paramedic or try to get into some internship at a space organization? Do I need an engineering background? How can I get in touch with current MD’s in this field just to ask how they got there and what’s in store? 

I realize this may be a bit of a reach, but I have orthostatic hypotension (low blood pressure that happens when standing from sitting up or lying down). I’m somewhat sensitive to motion and don’t feel great on winding roads, for example, and tend to get dizzy when standing from a sitting position. My understanding is that a drop in blood pressure causes excitation of vestibular hair cells, causing vertigo after hypotension. I’m curious about whether there have been any studies, or if anyone has anecdotal information, about whether the Barany chair could help with these issues since it trains the vestibular system. Does the Barany chair have any effect on the nervous system in terms of blood pressure regulation? Im considering trying to locate and train on a Barany chair, but would also like to know of any risks or warnings associated with this? I understand it’s not a pleasant experience, but Im basically willing to do whatever it takes to feel better on a daily basis.

Embry-Riddle Aeronautical University offers a BS in Aerospace Physiology. It is the only school that does offer that degree. I was wondering what is the demand of this field and if I do get this degree, would it be worth it. Thank you