6 more posts in this thread. [Missing image file: oceanography.jpg]
what does /sci/ think of oceanography?
I notice this board is mostly cs, math, and physics majors, and the more rigorous the more respect a specific subject gets around here. Oceanography sounds like a less competitiveness field, I noticed many of the textbook writers only have masters degree -- so I am guessing it's a neglected field and probably has few employment prospects. I've been thinking that might be a good reason to pursue it.
Any thoughts, is anyone here interested at all in studying the oceans, currents, and water salinity?
3 more posts in this thread. [Missing image file: ExoPlanet02.jpg]
Does anyone interested in distant-future energy sources know of any potential energy-harnessing method that would have a significant enough effect on the brightness of a star that the difference would be observable from light years away? The most obvious example would be solar energy collecting panels so large that they block a significant amount of the star's light, but I'm not sure if this could ever be feasible, even in a star system where the size of orbiting planets (and therefore the amount of building materials available) is a much higher percentage of the size of the star than in our solar system. I'm just wondering if it's possible that advanced alien civilizations might develop technology that would affect the brightness of stars in a way that's visible from Earth. Or the brightness of planets. I know artificial light on Earth is a teeny, tiny fraction of the light put out by our sun, but maybe an alien civilization might make lights much brighter? It just seems like at least SOME alien civilizations would, for SOME reason (weapons? energy?), develop technology that creates or blocks enough light that with the right observation methods we could detect it. The obvious problem would be telling the difference between normal light from stars and artificial light, but there might be some things to look for, such as a binary star in which one "star" moves very erratically or moves away from the other star entirely, or seems to appear and disappear. Bottom line is instead of looking for fancy signals in other parts of the spectrum, it seems like the best clues to the existence of alien civilizations might be found in good ol' visible light.