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Originally posted by Johnmike
If there was a "sonic boom," and then house and car alarms went off, don't you think people would have been awakened?
Originally posted by resistor
I haven't heard of an EMP that has only temporary effects like that, but who knows what tech they've got out there now. The EMP effects I've heard of are supposed to burn out chips completely, which is why I keep an extra CPU and coil for my car in a shielded spot.
Consider the baseline or constant field strength that is present across the membranes of all living cells when they are sustaining a "resting potential" of -60 mV. This voltage difference drops essentially entirely across the hydrocarbon layer of the lipid bilayer, which is 3 nm thin. This means that the "resting" field strength sustained across the cell membrane is 20 MV/m. EMP pulses will have to have to be significantly of this order locally -- that is, across the cell membrane -- to affect cells. For example, to change the membrane potential by 1 mV would require a field strength of 300,000 V/m directly across the membrane -- between the inside and the outside of the cell.
Originally posted by HaTaX
Originally posted by resistor
I haven't heard of an EMP that has only temporary effects like that, but who knows what tech they've got out there now. The EMP effects I've heard of are supposed to burn out chips completely, which is why I keep an extra CPU and coil for my car in a shielded spot.
Wouldn't you also need to keep a backup motherboard and memory and video card as well? Anything that would have a microprocessor or any small silicon gate would be cooked wouldn't it? Now the coil for a car would work as long as it was a pre-80s or so car. =)
Originally posted by Bhadhidar
I'm going to take a wild shot in the dark (sorry for the pun!) here and suggest that what you experienced was not an Electromagnetic Pulse (EMP).
But could it have been a localized EMD, an Electromagnetic Damping field?
Now, in truth I have no idea if such a thing even exists, or if the technology to generate such a thing could have the effects you described.
It just seemed to me that the effects you detailed were, in some ways, exactly opposite of what one would expect from an EMP. Electronic devices, especially those with microcircutry, such as PC's, cell phones and home/car alarm system should have been fried into a non-functional state by a wide area EMP.
But, if a damping field were to have been the cause of the power outage, the involved circuts would not have suffered any damage; they would simply have been de-energized in the presence of the field.
And many alarm systems are designed to activate if an unexpected drop in voltage is experienced, thus signaling a possible attempt to tamper with the system and warning of a potential security breech.
Could an EMD field be related to some sort of advanced gravitic propulsion system?
Originally posted by Harlowe JNkinz
There was a huge 'ball-shaped' light flash in the distance that seemed to radiate after it flashed... then all lights as far as I could see went out (I live on a third floor of an apartment complex on a hill)... then shortly after, I heard a loud "Buzz ZZt" electricity sound... none of the emergency lights that are set up around the complex came on... but the power came back after about 1-2 minutes after this outage... not sure about car alarms; I was a little freaked out - didn't pay attention...