Thread: What can protect something against EMPS?

Well I wannted to make this "DOOM DAY DEVICE" that uses this "SUPER ELECTRO MAGNECTIC RING THINGY" that will fry every microchip in the world... but how do I protect my Device from getting Fry and still keep the 360* radius??


Also I know that lead works... but is there something lighter??

i doubt it, unless the wave is emmitted outside the device.
but if its a device that fry's EVERY microchip in the world then i would only need to be a one shot weapon right?

perhaps multiple devices will do.

good luck.

Yeah I know... But when it finish "Warming up" and it start to emit the EMP it fryies up the Box were I have all the electronics.

Oh yeah also I killed my phone and the computer of my car!!!

what can hold an electrogmagnetic field back?
cause if you get a field to hold the wave away from the electronics until the coils are 'warmed' up and then the off switch would signal a pulse of electromagnetism, :? no... sorry i read too much sci-fi. i can't help you.

good luck with the evil plans.
may i ask what you gain from this?

Why don't u make your device clockwork, like a watch, or a game of mousetrap

if you built an emp that big, would it not also kill you if you stood anywhere near it?

Well I want to sent the whole world back to the Stone Age... and then use my Humanoid Robots to Dominate the world...


and thanks for the Advice of protecting my self... Forgot about the way our body works and how EMP'S could disturb our body electrical signals...

so yeah... I need a strong Refuge...

do the hollywood thing and hide under an upturned satalite dish.

That is a good Idea... but you gave me a greater idea... You now the F-117 stealth plane. Well that plane has SHARP edges to reflect Radio waves... and EMP are kind of like Radio Waves... So all I need is the Material

EXCELLENT!!!

i've just assisted in bringing the world one step closer to its demise.

when your robots attack please think of poor me.

u cant die by a EMP, we are organic and isnt effected by magnetism

if its an EMP created by a nuclear weapon you will have many things to be worried about and they are the most effective EMP producers i know of.

An emp like in the Matrix? The ones they had there went in all directions I think but the ships were still protected from it. Also if you fry every microchip then wont your robots fail?


If you ask me, I would create an underground base on some deserted island. The walls of the base would be made of lead on the outer side and like concret on the inside. The lead would protect everything inside of the base and wouldn't be harmful to you as it would be stuck between concret and solid rock.

As for keeping the device safe... I would make a protective case on the electroninc part of it made of lead. then you could make something that allows the device to rise up out of your base, and the another shield will come up to keep the emp waves from entering the base in anyway.

Last thing is that emp waves kill all electroninc devices, not just microchips.

Something I just thought of that makes your plan so perfect is that all your plans for the world domination are on computers, which will all be destroyed in the process.. it's the perfect crime!!

So, i have been thinking and there is another way to get protection from the EMP waves, and it is lead paint. It is not a bad or as heavy as pure lead, but will still provide a lot of protection. Several coats should definately do the trick.

I think your plan will fail because mans best weapon against your robot army are guns... which are mechanical.

Surely a biological weapon would make much more sense (one for which only you have the cure).

"EMP" can mean a lot of things. The EMPs created by nuclear weapons are the result of the ionizing radiation from the bomb suddenly knocking a bunch of electrons from air molecules loose, which spiral in the earth's magnetic field and briefly create a large electromagnetic field.

EMP can also refer to things like a burst of microwaves or radio waves that fry electronics by inducing brief voltages in them.

Or you could just discharge a bunch of capacitors through an electromagnetic coil to mess with the junctions in nearby semiconductors.

In any case, it's very unlikely that you could build a device that could knock out the electronics for the entire world; it takes nuclear-weapon levels of energy to generate an EMP over even a relatively small area, so EMPing the world is probably not feasible.

Wouldn't a faraday cage protect against an emp?

Originally Posted by Scifor Refugee

"EMP" can mean a lot of things. The EMPs created by nuclear weapons are the result of the ionizing radiation from the bomb suddenly knocking a bunch of electrons from air molecules loose, which spiral in the earth's magnetic field and briefly create a large electromagnetic field.

EMP can also refer to things like a burst of microwaves or radio waves that fry electronics by inducing brief voltages in them.

Or you could just discharge a bunch of capacitors through an electromagnetic coil to mess with the junctions in nearby semiconductors.

In any case, it's very unlikely that you could build a device that could knock out the electronics for the entire world; it takes nuclear-weapon levels of energy to generate an EMP over even a relatively small area, so EMPing the world is probably not feasible.

What if the device were to be placed on the moon, and it could be used as some sort of 'Death Star'. Find a way to focus the rays in the general direction of Earth and since the same side of the moon is ALWAYS facing Earth you could just leave the machine on and wait for everything electronic to be destroyed. Also you could keep all of your robots on the Dark side of the moon along with your spaceship and then you're pretty much set... make sure you invite me to your 'end of the world' party

Originally Posted by river_rat

Wouldn't a faraday cage protect against an emp?

yes wrapping your unplugged electronics in alfoil that is without holes or gaps should protect against EMPs

EMP can also refer to things like a burst of microwaves or radio waves that fry electronics by inducing brief voltages in them.

Yesh I want to built something like that, and I got the guts to knock out sectors at a time...

But then the guy above me gave me a really good idea... Now I just got to build a rocket

Originally Posted by wallaby

Originally Posted by river_rat

Wouldn't a faraday cage protect against an emp?

yes wrapping your unplugged electronics in alfoil that is without holes or gaps should protect against EMPs

And be sure to ground the foil. Like wallaby said, if you unplug your electronics and wrap them in foil, then connect the foil to an electrical outlet's ground (or any other good ground) you should be fine. If the EMP is made of something with a relatively large wavelength like microwaves or radio waves, you could probably get away with a mesh screen like you find on a screen door.

Like the one that they made in MythBuster???

and I don't think that is any mesh.

Originally Posted by Zelos

u cant die by a EMP, we are organic and isnt effected by magnetism

Well are muscle and brain uses Electrical Signals... would a LARGE EMP discharge get you high??

Pig iron plate, if you can disperse the EMP around the inside contents you are good to go.

Well... I may have money to built a very powerful device... but I don't have money to buy 4x more metal to built a shelter... I still like the idea of the Upside down dish...

But any more ideas??

"u cant die by a EMP, we are organic and isnt effected by magnetism"

Have you seen the fun experiment in which you rub an inflated baloon (or plastic ruler) on in your hair to charge it with static and then make it come really close to a very fine and faint stream of water from the faucet? Its outlandish, the fine stream bends towards the baloon/plastic ruler.

I dont think a nuke magnitude EMP can kill you(unless in the nuke's blast), but I think a very powerful magnetic field(neutron star) would rip your cells and molecules appart.

Ruler of the world:
If I had the omnipotent power of a Jinni/god/twillight zone director and someone said "I want to rule over the earth or I want to have all the gold/money in the world" Id teleport everyone else but him on a duplicate planet where he would be the only one or thing missing.

The new master of the world back on the original earth would own everything on earth, all the gold, all the money and would be alone (sorry no robot army)
A few decades later, the master of the world and richest man on the planet would probably live more like a caveman in a post-apocalyptic landscape or robinson crusoe than as rich man. The master of the world would have spend most of his time toiling to get water, food, to wash, and would probably live a miserable life(unable to benefit from what we take for granted).

but that will take away the fun part...

what about magnetic sheilding stuff like in the speakers next to your monitor?
somthing like that mabey yes?

Hey... I never knew that there was a magnetic shielding... *goes and rips apart a speaker*

Originally Posted by icewendigo

quoting someone else: "u cant die by a EMP, we are organic and isnt effected by magnetism"

Consider the effect of dropping a ten ton magnet on someone's head. :?

Originally Posted by Ophiolite

Consider the effect of dropping a ten ton magnet on someone's head. :?

it will have the same effect as it does in cartoons.

But also... haven't they made SUPER POWERFUL ELECTROMAGNETCI MAGNETS that can raise things agaist earth gravity... I bet you that a increasing the streaght of that magnet by 10x it can easily shot the muscle system making your body numb for some time