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Nuke EMP Turnoff elctrical items

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posted on Oct, 11 2009 @ 09:33 PM
Who remembers the movie Broken Arrow with John Travolta and Christian Slater, were Travolta steals the nukes, Cult Classic movie must see if you haven't.

Ok the part when thier in the Hummer and the helocopter is hovering above them and they say to give up and Travolta tells everybody in the Hummer to turn thier elctrical equipment off and the NUKE goes off and takes out the helocopter and they start the Hummer and leave.

Is his true or will it fry everything even off?

[edit on 11-10-2009 by slipknotrules2009]

posted on Oct, 11 2009 @ 09:44 PM
This site has everything you need to know concerning EMPs-


posted on Oct, 11 2009 @ 10:05 PM
The following is my opinion as a member participating in this discussion.

The EMP is actually an immensely strong wave of concentrated electromagnetic energy. Since a magnetic flux change in a conductor creates an electrical voltage (based on the amount of flux change per time unit), the EMP creates such a voltage and corresponding current in every wire it comes across. This voltage can easily exceed what the circuit is designed to handle, and thus fry it.

Turning off the power does nothing. The conductors in the circuitry are still there and still subject to the magnetic flux change.

The only way to protect electrical equipment is to use something like a Faraday Cage. Such cages are made for laboratory use using a material like Permalloy which is not only a conductor, but also a magnetic medium with a very high permeability (meaning it acts like a very good magnetic 'conductor'). The problem is that Permalloy and it's cousins are not only extremely expensive, but also hard to find. I have spent that last ten years at least trying to find a source for such materials, and only recently came across this one surplus source. And it is an unusual limited stock offer.

Certain types of circuits are designed to tighter restrictions on acceptable voltage and current, and thus are more susceptible to EMP damage: computers, low-power circuits such as in portable devices (cell phones, iPods), and pretty much anything using digital logic (remote-controlled anything) are the most susceptible. Older technology using more sturdy components (older auto ignitions, for example) are far from immune, but are better at withstanding EMP than most circuitry.

So short answer: no, that is what Hollywood needed to make the movie 'work'. It has no basis in reality.


As an ATS Staff Member, I will not moderate in threads such as this where I have participated as a member.

posted on Oct, 11 2009 @ 10:22 PM
Nuclear Weapon EMP is not our only worry.

In 1859 we had a Solar EMP.

On Sept. 2, 1859, an incredible storm of charged particles sent by the sun slammed into Earth's atmosphere, overpowered it, and caused havoc on the ground. Telegraph wires, the high-tech stuff of the time, suddenly shorted out in the United States and Europe, igniting widespread fires. Colorful aurora, normally visible only in polar regions, were seen as far south as Cuba and Hawaii.

Earth's magnetic field normally protects the surface of the planet from some storms. In 1859, the planet's defenses were totally overwhelmed. Over the past decade, similar but less powerful storms have likewise busted through, giving scientists insight into what will eventually happen again.

The outlook is not rosy.

The solar storm of 1859 was three times more powerful than one that cut power to an entire Canadian province in 1989. Experts say if it happened today – and it could – the result might be unthinkable.

If a storm that severe occurred today, it could cause up to $2 trillion in initial damages by crippling communications on Earth and fueling chaos among residents and even governments in a scenario that would require four to 10 years for recovery, according to a report earlier this year by the National Academy of Sciences.

For more information on EMP attack and the risks, check out this government report:

Page 40 is very scary

EMP can damage or disrupt the infrastructure that supplies food to the population of the United States. Recent federal efforts to better protect the food infrastructure from terrorist attack tend to focus on preventing small-scale disruption of the food infrastructure, such as would result from terrorists poisoning some food. Yet an EMP attack could potentially disrupt the food infrastructure over a large region encompassing many cities for a protracted period of weeks to months.
Technology has made possible a dramatic revolution in US agricultural productivity. The transformation of the United States from a nation of farmers to a nation where less than 2 percent of the population is able to feed the other 98 percent and supply export markets is made possible only by technological advancements that, since 1900, have increased the productivity of the modern farmer by more than 50-fold. Technology, in the form of knowledge, machines, modern fertilizers and pesticides, high-yield crops and feeds, is the key to this revolution in food production. Much of the technology for food production directly or indirectly depends upon electricity, transportation, and other infrastructures.
The distribution system is a chokepoint in the US food infrastructure. Supermarkets typically carry only enough food to provision the local population for 1 to 3 days. Supermarkets replenish their stocks on virtually a daily basis from regional warehouses that usually carry enough food to supply a multi-county area for about one month. The large quantities of food kept in regional warehouses will do little to alleviate a crisis if it cannot be distributed to the population in a timely manner. Distribution depends largely on a functioning transportation system.

[edit on 11-10-2009 by infolurker]


posted on Oct, 12 2009 @ 03:10 AM
I'm in the middle of reading the book "One Second After", and it gives a very harrowing description of how society would probably handle an EMP incident.

Not good for those not prepared.

When i say "prepared", i don't mean you live in a Faraday cage with all your stuff, i mean it would be handy to learn to live without electric for a while, how to barter with people, how to defend yourself, that kind of thing.

Just reading about the medical implications of an EMP was enough to raise the eyebrows.



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