IDMclean Posted July 21, 2006 Report Share Posted July 21, 2006 Interesting I had not heard of Haarp previously. (the criticism) Sounds similar to an ideabeing discussed on TOE Quest, regarding an idea that Tesla allegedly had. I doubt it's crediblity, but still. Tesla Weapons Thread, Posted by user: Tesla They sound similar. Quote Link to comment Share on other sites More sharing options...
hallenrm Posted July 21, 2006 Report Share Posted July 21, 2006 Really? Never heard of microwave radar then? Again , no. MICROWAVES So I gathered. So I hear.Speaking of heating the ionosphere, how about that HARP project up in Alaska? What damage do you suppose they may do?:hyper: Microwaves as you might know are used in microwave ovens too, the principle behind these ovens is that microwaves can excite rotational molecular levels (a la microwave spectroscopy) of water molecules in the foodstuff, that helps in cooking. There are water molecules in an animal body too. Any way aren't you aware of the hazards of microwaves? Any way the HARP project you are referring to and the link, This is the first line of the article: The High Frequency Active Auroral Research Program (HAARP) is an investigation project to "understand, simulate and control ionospheric processes that might alter the performance of communication and surveillance systems". Obviously even the project leaders do not envisage its utility for transmitting energy from the space to Earth. They are directing microwaves away from the Earth rather than the other way around.:eek2: Quote Link to comment Share on other sites More sharing options...
Turtle Posted July 21, 2006 Report Share Posted July 21, 2006 Microwaves as you might know are used in microwave ovens too, ...You stated "The major hurdle to put this idea to practice, is the fact, that all electromagnetic waves, are scattered by the atmosphere surrounding the Earth." I said no, you are mistaken. Microwave radiation does penetrate the atmosphere. This is why ESA has a microwave radar on their Venus probe.You might want to brush up on some basics.:hyper: Quote Link to comment Share on other sites More sharing options...
Turtle Posted July 21, 2006 Report Share Posted July 21, 2006 Any way the HARP project you are referring to and the link, This is the first line of the article: Obviously even the project leaders do not envisage its utility for transmitting energy from the space to Earth. They are directing microwaves away from the Earth rather than the other way around.:eek2:I did not mean to imply HARP is for genrating power in space & beaming it down. I brought it up as a germain & informative article on some general principles of atmospheric study. Let me summarize by saying that no matter the method, whether it's LASER, MASER, visible light mirrors, microwaves, dropping batteries, or plasma fairy dust, if you intercept energy in space that would otherwise miss Earth & redirect it to Earth then Earth is going to warm up as a result. Yes we can beam energy from space to Earth; no we should not actually do it.:hyper: Quote Link to comment Share on other sites More sharing options...
hallenrm Posted July 21, 2006 Report Share Posted July 21, 2006 That's it, indeed! :) Quote Link to comment Share on other sites More sharing options...
hallenrm Posted July 21, 2006 Report Share Posted July 21, 2006 You stated "The major hurdle to put this idea to practice, is the fact, that all electromagnetic waves, are scattered by the atmosphere surrounding the Earth." I said no, you are mistaken. Microwave radiation does penetrate the atmosphere. This is why ESA has a microwave radar on their Venus probe.You might want to brush up on some basics.:lol: Thanks for the advise! I did some research to brush up on the basics, and hit on an article about radars in encarta. Here is a paragraph from that article Radar relies on sending and receiving electromagnetic radiation, usually in the form of radio waves (see Radio) or microwaves. Electromagnetic radiation is energy that moves in waves at or near the speed of light. The characteristics of electromagnetic waves depend on their wavelength. Gamma rays and X rays have very short wavelengths. Visible light is a tiny slice of the electromagnetic spectrum with wavelengths longer than X rays, but shorter than microwaves. Radar systems use long-wavelength electromagnetic radiation in the microwave and radio ranges. Because of their long wavelengths, radio waves and microwaves tend to reflect better than shorter wavelength radiation, which tends to scatter or be absorbed before it gets to the target. Radio waves at the long-wavelength end of the spectrum will even reflect off of the atmosphere’s ionosphere, a layer of electrically-charged particles in the earth’s atmosphere. So, a radar works because of the reflected (say scattered) radiation from the molecules or ions, and definetly not because the radiation can penetrate deep through the layers.:hyper: Quote Link to comment Share on other sites More sharing options...
Turtle Posted July 21, 2006 Report Share Posted July 21, 2006 So, a radar works because of the reflected (say scattered) radiation from the molecules or ions, and definetly not because the radiation can penetrate deep through the layers.:lol: No, you have misconstrued the article. Not all microwaves are created equal, i.e. there are tuned. Further more, reflection of any kind is a function of the angle of incidence where the angle of reflection is equal to the angle of incidence. Here's some data & a link to the instruments on Venus Express. Radio sounding of the atmosphere and ionosphereThe sounding of the neutral and ionised atmosphere is performed in the periods just before the spacecraft enters occultation by the planet. The High Gain Antenna is pointed toward the Earth before the approach to occultation. The radio link is a two-way dual-frequency downlink with unmodulated carriers. The radio link passes through a vertical swath of the ionosphere and atmosphere. Bistatic radar investigation of planetary surfaceA bistatic radar configuration is distinguished from a monostatic configuration by the spatial separation of the transmitter (the spacecraft) and the receiver (ground station). The HGA is inertially pointed toward the surface of Venus and an X-band signal without modulation is transmitted. Several passes above specific targets will be made. The reflected and/or scattered signal is received by the ground station, for which the preferred choice is the Deep Space Network because of the higher signal to noise ratio that is available. http://sci.esa.int/science-e/www/object/index.cfm?fobjectid=33964&fbodylongid=1446 Quote Link to comment Share on other sites More sharing options...
Turtle Posted July 21, 2006 Report Share Posted July 21, 2006 No, you have misconstrued the article. Not all microwaves are created equal, i.e. there are tuned. Examples of tuned RADAR instruments:http://www.du.edu/%7Elconyers/SERDP/gprmethodandtheory2.htmhttp://www.nasa.gov/mission_pages/cloudsat/spacecraft/index.htmlhttp://www.space.com/news/spacehistory/srtm_russia.html http://en.wikipedia.org/wiki/Synthetic_aperture_radar Examples of tuned IR instruments:http://asterweb.jpl.nasa.gov/instrument.aspImage from the instrument:http://asterweb.jpl.nasa.gov/ :lol: Quote Link to comment Share on other sites More sharing options...
hallenrm Posted July 22, 2006 Report Share Posted July 22, 2006 Getting back to the context of the thread, we all know that tiny insects and some birds can often permeate through the so called impermeable installations, but that does not mean that huge objects like tanks and airplanes can be smuggled in too! :edizzy: Turtle 1 Quote Link to comment Share on other sites More sharing options...
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