Mark Main

This page lists questions and answers that were posted by visitors named Mark Main.

Questions

The following questions were asked by visitors named Mark Main.

Pretend our future colonists build a large round 2km diameter train track on the great plains of Mars that is sloped (angled) inward to artificially increase the gravity felt by the occupants living onboard the house sized train cars speeding along at the...

Answers

The following answers were posted by visitors named Mark Main.

Good sci-fi strives to limit itself to the laws of physic within the boundaries of future science and technology; within the relm of my future world of science, abundant clean energy is reality and so powering a railed community is possible. "Why bother?"...

I forgot to mention that can reduce the speed by making the radius smaller, but studies show that at a certain point it becomes uncomfortable for long-term living; it seems that nausia effects mildly increase below -.5 mile diameters and the nausia increa...

I searched around to find some links regarding the bone loss, but I'm not allowed to link it here. Just google this long sentence here: Tests indicate bone loss rates of up to 1.5% a month johnson space center and you'll find it right away. In just a few...

I see that 9.04 that you provided comes from SQRT(9.81^2 - 3.8^2). But I think that your velocity calculation is wrong because velocity should be the SQRT(R * 9.04) and that would be 67.25m/s, 242.09kph, 150.43mph. Please let me know if you concur. The an...

I am positive now; the correct answer to this problem is this: Extra Gravity Needed (X) =SQRT((9.81)^2 - (3.8)^2) = 9.044119637 V = SQRT(X * 500) = 67.2462624854992m/s = 242.0865449kph = 150.4256051mph Angle =DEGREES(ATAN(V^2/(500*3.8))) = 67.209679826226...