161–170 of 222 posts
"The microwave auditory effect, also known as the microwave hearing effect or the Frey effect, consists of the human perception of audible clicks, or even speech, induced by pulsed or modulated radio frequencies. The communications are generated directly inside the human head without the need of any receiving electronic device." https://en.wikipedia.org/wiki/Microwave_auditory_effect
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I imagine a direct beam would cause visible burns, but something that never occurred to me is using beamforming to zap inside someone's head. Yikes. Disclaimer: I'm not a physicist.
Basic problem: How do you target this? Advanced problem: how do you avoid accidentally killing someone while targeting this? You're just talking about shooting "at" someone's head, you're talking about positioning their head in 3D space and shooting so precisely (through potentially layers of brick, metal brick ties, lath etc.) that you hit only inside their head and don't leave any marks or burns on the skin. We don…
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You can have two of the following three. Small size (less than thirty meters), low scatter, and power. If you're going to have a powerful microwave brain frying system radiating over a 50m^2 area there is no way you're not going to light up the neighborhood in EM. Just can't happen, sorry.
I don't know why you think a brain frying system needs to operate over a 50m^2 area or why you think it needs to be small. Buildings with windows exist as do building across from those windowed buildings. Maybe some day someone will invent phased array antennas and you'll be able to direct narrow beam emissions without having to physically move the antenna. I can dream I guess.
50m^2 is quite small. There is no reasonable way of knowing where your target will be across a wall.
But even if you made it only 5m^2 you'd still be dumping off-axis like a 100w omnidirectional antenna at the very best.
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Basic problem: How do you target this? Advanced problem: how do you avoid accidentally killing someone while targeting this? You're just talking about shooting "at" someone's head, you're talking about positioning their head in 3D space and shooting so precisely (through potentially layers of brick, metal brick ties, lath etc.) that you hit only inside their head and don't leave any marks or burns on the skin. We don…
Beamforming is a solved problem, using the interference of multiple antennas' energy to resonate at exactly the right location for maximum strength. Why do you think this technology isn't reliable?
That it could maybe be done under ideal conditions doesn't explain how you do it when the target is mobile (but let's be generous and say you assume they're in bed), and you need to accurately visualize where they are through an unspecified amount of intermediate interfering elements (people's bedrooms aren't glass boxes).
Foil wall insulation would disrupt an attempt at microwave beamforming - so how is targeting being achieved so precisely as to be undetectable and cause no other environmental effects?
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Have you noticed how microwave cooking is not warming up the skin any faster than the insides? The wavelength is selected so that it penetrates and warms water molecules. It would cook your insides according to their water content. Surface of the skin has less water than tissue inside, so you would feel pain beneath the skin.
MythBusters tested that, the outsides (of food) heat up first.
Note to self: pay attention when trimming HF transmitters about where you keep stray digits and where the locations of the tops of trimmers are relative to those digits.
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Beamforming is a solved problem, using the interference of multiple antennas' energy to resonate at exactly the right location for maximum strength. Why do you think this technology isn't reliable?
Because you are trying to hit a 15cm by 15cm sphere in 3D space that you cannot see . That it could maybe be done under ideal conditions doesn't explain how you do it when the target is mobile (but let's be generous and say you assume they're in bed), and you need to accurately visualize where they are through an unspecified amount of intermediate interfering elements (people's bedrooms aren't glass boxes). Foil wall…
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The math would be interesting to see. I haven't seen a directed energy antenna, but you can easily drop 9db with single digit degrees off target with a big dish.
9dB is really not a lot. If you're going to be sending 10kW+ of radiation 9dB of directionality still means you're gonna light up the whole neighborhood.
Earlier quoted context omitted.
Have you noticed how microwave cooking is not warming up the skin any faster than the insides? The wavelength is selected so that it penetrates and warms water molecules. It would cook your insides according to their water content. Surface of the skin has less water than tissue inside, so you would feel pain beneath the skin.
MythBusters tested that, the outsides (of food) heat up first.
Earlier quoted context omitted.
I imagine a direct beam would cause visible burns, but something that never occurred to me is using beamforming to zap inside someone's head. Yikes. Disclaimer: I'm not a physicist.
Basic problem: How do you target this? Advanced problem: how do you avoid accidentally killing someone while targeting this? You're just talking about shooting "at" someone's head, you're talking about positioning their head in 3D space and shooting so precisely (through potentially layers of brick, metal brick ties, lath etc.) that you hit only inside their head and don't leave any marks or burns on the skin. We don…