SpaceX's Elon Musk Talks Rockets, Moon Base and Colonization

Combs, Mike wrote:> Point to a scientific study detailing the harmful effects of microwave> exposure (below the level of cooking the organism, of course!)>> There aren't any. Federal regulations regarding "acceptable" exposure to> microwaves are not based on any scientific finding.The first is a list of over 100 studies done. You might question the validity ofthese studies, but that there are plenty of them is not in doubt.http://mercola.fileburst.com/PDF/123ReviewsNonthermalEffectsMicrowaveLowerFrequencyEMFs-MartinPall.pdfhttps://articles.mercola.com/sites/articles/archive/2010/05/18/microwave-hazards.aspxhttps://www.goodhealthinfo.net/radiation/health_efx_western.htm> Can you be more detailed? If you're just arguing that a person can't> literally string up chicken wire and convert microwaves to rectified DC, then> sure, but that's a straw man. (This reminds me of the guy who cautioned me> that getting useful elements out of regolith would never be as easy as just> shining some concentrated sunlight on it. Well, yes, but who literally said> that?) I don't think you can mean that a rectenna could never be designed> which would let water through, or even the bigger fraction of the sunlight,> given the vast difference in wavelengths between microwaves and visible light.> Again, could you please share your findings?No I did *not* suggest literally chicken wire, that is why I said "somethinglike".Maybe I could have stated it better by saying: something like a mesh thatcaptures microwaves but lets all, or almost all, the light through. Of therectennas I've seen, none of them look anything like this. They are all mostly,if not almost completely, opaque solid surface.Here is a google image search for "rectenna array element":https://www.google.com/search?q=rectenna+array+element&source=lnms&tbm=isch&sa=XHere is a NASA study done on rectennas. See the picture of the rectenna on page 10:http://www.nss.org/settlement/ssp/library/1987-NASACR179558-RectennaTechnologyProgram.pdfHere's a page, at the bottom of which is (small) picture of a rectenna surface:http://www.spaceset.org/p.solar.mmHere's another rectenna page and picture, from the Japan space program:https://www.ijser.org/paper/Renewable-energy-Spaced-based-solar-Power-transmission.htmlhttps://www.ijser.org/paper/Renewable-energy-Spaced-based-solar-Power-transmission/Image_007.jpgHere's another picture of an actual rectenna:http://www.solarsat.org/Bill%20Brown%20tuning%20Rectenna.png">