Emf

[dilligaf2u2]

One area I think would make life interesting!

What if; for some reason there was EMF, rolling around the world. (Electrical Magnetic Force). Just a thought! But how would this affect you? It could be a meteor passing over or the right number of nukes in the right places, all going off at the same time? The world would shut down. Nothing would work.

Just think all the little computers in our cars and in our homes not being able to work. All money would be useless. No cash registers working. No gas pumps. My truck would run but without gas it is scrap metal. We would be moved back to 1900 over night. All production shut down and all transportation stopped. Hospitals and banks and stores would be at a stand still. It would be just like the fire sale, in the movie, Live free or Die Hard.

Can we all say Opps! Where did I put that crystal radio? Who hid the Coleman stove?

I know my rechargeable batteries would be near useless. No way to charge them. The car and truck other then the fuel for the Coleman would be scrap. At least 18 months or longer (can we say 7 years?) waiting on repair parts for everything! No heat and no running water, not to say, no flushing. No boats, planes or semi loads of good coming into the big box stores.

Inventory’s lost and have to be recounted by hand! Factories at a stand still and no jobs! No transportation and no tractors for planting. The control for our furnaces fried, and the frig and freezer no longer working.

Without computers how many would starve to death and or freeze to death? How many would survive and who would those people be?

Can we say, Bushcraft? Can we say, Daddy what was it like in the old days?

Don

[Rick]

Don - Not so far fetch of an idea. Actually, it's pretty common with regard to the sun. Here is a post I made in another thread.

High Altitude Electromagnetic Pulse (HEMP) can interrupt sat to sat, sat to plane and sat to ground communications over very large distances. Power grids and ground to ground radio would also be at risk. Interestingly, there has been work on a device to create a High Power EMP (HPEM) and even Non-Nuclear EMP (NNEMP) weapons.

Sun spot activity is responsible for a whole host of communication and power grid problems and is a relatively common occurrence. The sun is on a (more or less) 11 year cycle of sun spot activity. 2006 was the solar minimum when sun spot activity was at its lowest point. The solar maximum is when the sun spot activity is at its highest point and that's when things really go awry here on earth. The next solar maximum is thought to have started this month and will reach its peak in 2012. It is also predicted to be the most intense in 50 years and because of the wide range of electronics we have (and I'm sure will invent between now and then) we will notice this one.

You folks up north will see unprecedented northern lights that many of us in lower latitudes will enjoy and all of us may experience some interruptions in power and communications.

Here is a NASA article on the current solar maximum known as Cycle 24:

http://science.nasa.gov/headlines/y2...larcycle24.htm

Incidently, the sun is monitored by the NOAA for just this kind of reason.

[wareagle69]

hhmm 2012 you say like maybe dec 21 2012 just spitballing....

[Rick]

Yeah, just spitballing. It won't occur on one date but over a period of time during that year. It could start as early as 2011.

[wareagle69]

all i'm saying is that what if that is the day it is perticulary strong and does knock out the grid

[Rick]

That would be SHTF day. We wouldn't be able to log on to Wilderness-Survival.net!

[Beo]

That's a good SHTF scenario, EMF was and is being tested by the U.S. Military and waves pumped at a city can shut down all the electrical systems. The electromagnetic field is a physical field produced by electricall charged objects. It affects the behaviour of charged objects in the vicinity of the field. The electromagnetic field extends indefinitely throughout space and describes the electromagnetic interaction. It is one of the four fundamental forces of nature (the others are gravitation, the weak interaction, and the strong interaction). The field can be viewed as the combination of an electric field and a magnetic field. The electric field is produced by stationary charges, and the magnetic field by moving charges (currents); these two are often described as the sources of the field. The way in which charges and currents interact with the electromagnetic field is described by Maxwell's equations and the Lorentz Force Law. From a classical point of view, the electromagnetic field can be regarded as a smooth, continuous field, propagated in a wavelike manner, whereas from a quantum mechanical point of view, the field can be viewed as being composed of photons.
Although I think it would come in the form of EMP or electromagnetic pulse has the following meanings: Electromagnetic radiation from an explosion (especially a nuclear explosion) or an intensely fluctuating magnetic field caused by Compton-recoil electrons and photoelectrons from photons scattered in the materials of the electronic or explosive device or in a surrounding medium. The resulting electric and magnetic fields may couple with electrical/electronic systems to produce damaging current and voltage surges. See Electromagnetic bomb for details on the damages resulting to electronic devices. The effects are usually not noticeable beyond the blast radius unless the device is nuclear or specifically designed to produce an electromagnetic shockwave.
A broadband, high-intensity, short-duration burst of electromagnetic energy. In the case of a nuclear detonation or an asteroid impact, most of the energy of the electromagnetic pulse is distributed in the frequency band between 3 Hz and 30 kHz.
The worst of the pulse lasts for only a second, but any unprotected electrical equipment — and anything connected to electrical cables, which act as giant lightning rods or antennae — will be affected by the pulse. Older, vacuum tube (valve) based equipment is much less vulnerable to EMP; Soviet Cold War–era military aircraft often had avionics based on vacuum tubes. There are a number of websites that explore methods for protecting equipment in the home or business from the effects of an EMP attack.
Many nuclear detonations have taken place using bombs dropped by aircraft. The aircraft that delivered the atomic weapons at Hiroshima and Nagasaki did not fall out of the sky due to damage to their electrical or electronic systems. This is simply because electrons (ejected from the air by gamma rays) are stopped quickly in normal air for bursts below 10 km, so they do not get a chance to be significantly deflected by the Earth's magnetic field (the deflection causes the powerful EMP seen in high altitude bursts), but it does point out the limited use of smaller burst altitudes for widespread EMP.
If the B-29 planes had been within the intense nuclear radiation zone when the bombs exploded over Hiroshima and Nagasaki, then they would have suffered effects from the charge separation (radial) EMP. But this only occurs within the severe blast radius for detonations below about 10 km altitude. EMP disruptions were suffered aboard KC-135 photographic aircraft flying 300 km from the 410 kt Bluegill and 410 kt Kingfish detonations (48 and 95 km burst altitude, respectively) in 1962, but the vital aircraft electronics then were far less sophisticated than today and did not crash the aircraft.
Several major factors control the effectiveness of an EMP weapon. These are:
The altitude of the weapon when detonated;
The yield of the weapon;
The distance from the weapon when detonated;
Geographical depth or intervening geographical features.
Beyond a certain altitude a nuclear weapon will not produce any EMP, as the gamma rays will have had sufficient distance to disperse. In deep space or on worlds with no magnetic field (the moon or Mars for example) there will be little or no EMP. This has implications for certain kinds of nuclear rocket engines.

[Tony uk]

I have a lead lined house, 5 ft think reinforced concrete walls, 5inch think steel doors with 6 locking systems, My house in 2 miles underground with only 3 camouflaged entry points. All of which can be colapsed with explosives. MY shelter is a further 200meters down with a staircase leading to it, It is airtight and i keep it at 3+ normal pressure

[MedicineWolf]

In the UK, come on.

[Tony uk]

In the UK, come on.

THE UK

IN SCOTLAND !!!!!!!!!!!!!!!!!!!!

[trax]

I have a lead lined house, 5 ft think reinforced concrete walls, 5inch think steel doors with 6 locking systems, My house in 2 miles underground with only 3 camouflaged entry points. All of which can be colapsed with explosives. MY shelter is a further 200meters down with a staircase leading to it, It is airtight and i keep it at 3+ normal pressure

Yeah, you and marcraft on the same meds? that lead lined house you might want to discuss with people who have spent their lives in houses painted with lead based paints or lead pipes. Oh wait, you can't...it killed them!

[Beo]

Scotland is part of the UK bro,

[trax]

Scotland is part of the UK bro,

I kind of got a kick out of someone identifying himself as from the UK and then correcting another member about it (Scotland!). Shows a real talent for...no I better not say....

[Tony uk]

I kind of got a kick out of someone identifying himself as from the UK and then correcting another member about it (Scotland!). Shows a real talent for...no I better not say....

Tell us trax........... Come on.................

[Tony uk]

Scotland is part of the UK bro,

Not on my map

[crashdive123]

I have a lead lined house, 5 ft think reinforced concrete walls, 5inch think steel doors with 6 locking systems, My house in 2 miles underground with only 3 camouflaged entry points. All of which can be colapsed with explosives. MY shelter is a further 200meters down with a staircase leading to it, It is airtight and i keep it at 3+ normal pressure

Lead......tin foil.....not too much difference.

[Tony uk]

Lead......tin foil.....not too much difference.

I have a tin foil hat so ET cant read my brianwaves

[nell67]

I dont think that is an issue for you Tony.

[Tony uk]

I dont think that is an issue for you Tony.

Yeah im too sneaky fo ET anyway

[crashdive123]

Don - Not so far fetch of an idea. Actually, it's pretty common with regard to the sun. Here is a post I made in another thread.

High Altitude Electromagnetic Pulse (HEMP) can interrupt sat to sat, sat to plane and sat to ground communications over very large distances. Power grids and ground to ground radio would also be at risk. Interestingly, there has been work on a device to create a High Power EMP (HPEM) and even Non-Nuclear EMP (NNEMP) weapons.

Sun spot activity is responsible for a whole host of communication and power grid problems and is a relatively common occurrence. The sun is on a (more or less) 11 year cycle of sun spot activity. 2006 was the solar minimum when sun spot activity was at its lowest point. The solar maximum is when the sun spot activity is at its highest point and that's when things really go awry here on earth. The next solar maximum is thought to have started this month and will reach its peak in 2012. It is also predicted to be the most intense in 50 years and because of the wide range of electronics we have (and I'm sure will invent between now and then) we will notice this one.

You folks up north will see unprecedented northern lights that many of us in lower latitudes will enjoy and all of us may experience some interruptions in power and communications.

Here is a NASA article on the current solar maximum known as Cycle 24:

http://science.nasa.gov/headlines/y2...larcycle24.htm

Incidently, the sun is monitored by the NOAA for just this kind of reason.

Interesting topic. Back in the mid 70's one of my jobs onboard the submarine I was on was operating/repairing the satellite navigation equipment. During one particular period we had a very difficult time tracking the satellites and obtaining a navigation fix. Of course it had to be the equipment (that's what the captain kept telling me), and of course he couldn't understand why I couldn't repair it. He did not buy into my explanation of solar activity. Then one day I get woken up and told to see the CO. We're at periscope depth and he tells me to look at the sun through the scope (with the sun filter you can look at it - normally for taking azmuths). In one quadrant we were seeing very dark spots. Sun Spots!!!! He began to believe me. When we returned to port we asked about it since no messages were ever sent. "Oh yeah - the solar activity has been causing major problems world wide."

Ahhh. vindication.

Also - The thing that will cause the destruction of electronics isn't the EMF (which is always around us and when high conditions exist will cause disruption but rather the EMP. The EMP is very short lived, and causes the most disruption if it is a HEMP as you described. HEMP can induce large voltages and currents in power lines, communication cables, radio towers, and other long conductors serving a facility. Some other notable collectors of EMP include railroad tracks, large antennas, pipes, cables, wires in buildings, and metal fencing. Although materials underground are partially shielded by the ground, they are still collectors, and these collectors deliver the EMP energy to some larger facility. This produces surges that can destroy the connected device, such as, power generators or long distance telephone systems. An EMP could destroy many services needed to survive a war.