Recent content by BilboBombadillo

Thankyou for your answer - I hadn't thought to consider the effect of cosmic radiation on evolution. Can somebody elaborate on what they might imagine the weather systems would be like? Lacking a coriolis effect, (but remembering that this situation is not analogous to a stationary Earth with...

Ahoy - so this is a rather multi-faceted question, but I need it properly answered for a creative project of mine. I could think of no better place to ask it, so forgive me if it's misplaced. I have on paper before me a fictional planet that does not rotate. It's general shape is a truncated...

How did you come to work there? What/where did you study? What first got you interested in all this, and at what age? (trying to decipher my chances of ever doing anything science related professionally) Thanks for your work, and for this great thread!

Thankyou. That is what I suspected. I think I need further explanation, however. You may underestimate my inproficiency at math. How precisely do go about doing as you've suggested? Where do I change the values?

Homework Statement Consider a satellite in circular low Mars orbit 300km above the planetary surface. R = 3396km M = 6.419 x 1023kg G = 6.674 x 10-11m3/kg/s2 Find the orbital velocity of the satellite (using the given values, I assume, as there is some inaccuracy in the real-life mass value...

Isp is part of the Exhaust velocity equation Vex = g0 Isp In fact, I think a better question would be - How does one input exp(-ΔV/Vex) on a calculator?

Apologies I forgot the actual equation. The rocket equation I figured was necessary anyway, as no mass information is provided. Here: Propellant Fraction: mprop/mi = 1 - exp(-ΔV/Vex)

Homework Statement Consider a cryogenic chemical propulsion system with Isp (specific impulse) = 450 s Enter the required propellant fraction as a proportion with at least two decimal places. The ΔVelocity is provided. ΔV = 9.6 km/s Homework Equations Rocket equation: ΔV = Vex x Ln (initial...

Ahoy there. I am twenty years old, and have (as a result of my interest in cosmology and astronomy, and the natural sciences) developed a keen appreciation for mathematics (in physics, primarily). I have always had an interest in the sciences, but lackluster teachers and personal disinterest...

Hey there - so I'm potentially going on a private tour of the jet propulsion laboratory here in California. It will be myself and two friends of mine, accompanying Nagin Cox, of the Curiosity rover. Is there anything you'd like to know?

I'm new, though I've stalked anonymously for some time. You best get used to me though, as I'll likely be using this site as my primary real-person-tutor, seeing as I haven't the time to engage in scheduled classes. Any and all of my learning has and will be independent for now, so if you see...

Ahoy. Two things ought to be known prior to your reading my terrible post: 1. This is my first post. 2. I don't know very much about this whole business (though time and passion suggests I should) Considering its my first post, let's start at the beginning: Now, I've been reading a whole...