Posted on 10/04/2012 9:46:47 PM PDT by LibWhacker
A team of astronomers is now looking for Dyson Spheres, massive star-scale solar power plants that extraterrestrial hunters hope alien civilizations employ
In 1960, mathematician, physicist, and all-around genius Freeman Dyson predicted that every civilization in the Universe eventually runs out of energy on its home planet, provided it survives long enough to do so. Dyson argued that this event constitutes a major hurdle in a civilization's evolution, and that all those who leap over it do so in precisely the same way: they build a massive collector of starlight, a shell of solar panels to surround their home star. Astronomers have taken to calling these theoretical megastructures Dyson Spheres. Dyson's insight may seem like nothing more than a thought experiment, but if his hypothesis is sound, it has a striking implication: if you want to find advanced alien civilizations, you should look for signs of Dyson Spheres.
Last month a trio of astronomers led by Penn State's Jason Wright began a two-year search for Dyson Spheres, a search that will span the Milky Way, along with millions of other galaxies. Their project was just awarded a sizable grant from the Templeton Foundation, a philanthropic organization that funds research on the "big questions" that face humanity, questions relating to "human purpose and ultimate reality."
(Excerpt) Read more at theatlantic.com ...
Yeah, we’ve almost figured out fusion, it renders a massive engineering construct for energy purposes obsolete.
This is of course a ridiculous idea. Photovoltaic arrays are not efficient at all, unless compared with feeding oats to a horse which turns a generator by walking in a circle.
If one had to replicate such a situation to power Planet Earth, I wonder if the ring of solar cells would need to be wide enough that it would even be visible several light years away?
Political considerations are probably the only reason that there isn’t something like fusion/geothermal, in which a fusion bomb is set off underground, then the heat that was generated tapped.
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