DARPA question.

[SergiusPaulus]

Can an electromagnet repel metal? If so could a ship repel an anti ship missile with an electromagnet. Same with a tank on the battlefield? Could that magnet redirect the object being fired at them, like a defensive tool?

Can you propel a bullet or larger object like a tank round using electromagnet instead of gunpowder....like a slingshot? Imagine weapons not making a booming sound of propellant. Or launch a small vehicle?

I imagine getting the magnet fired up at maximum power before releasing the object.

 

[Einstein]

The answer is yes if the metal conducts electrons. But the strength of the magnetic fields required are beyond the upper limit of our technology.

 

[SergiusPaulus]

Can electromagnet affect communication like WiFi or radio or radar signals? Can it boost signal or distort it?

 

[SergiusPaulus]

I was reading on internet that electromagnet can make a bullet tumble in flight but bullet still hits target. If u make a missile tumble maybe it would redirect its path thus possibly protecting target.

 

[Beholder]

Can an electromagnet repel metal? If so could a ship repel an anti ship missile with an electromagnet. Same with a tank on the battlefield? Could that magnet redirect the object being fired at them, like a defensive tool?

Can you propel a bullet or larger object like a tank round using electromagnet instead of gunpowder....like a slingshot? Imagine weapons not making a booming sound of propellant. Or launch a small vehicle?

I imagine getting the magnet fired up at maximum power before releasing the object.

Just like lasers are easy to reflect using mirrors and lightning can be diverted using a rod, a super strong magnet shield would easily be bypassed using stone or wolfram projectiles.

Radiowaves are electromagnetic waves at high frequencies. Just connect a long wire to + or - in pulses without draining and the electric charge will radiate as waves. Getting the signal just requires reading the voltage of an ungrounded cable and filtering out other frequencies using a band-pass filter of capacitors. But you need a license to send on restricted frequencies and jamming is usually not allowed for civilians.

The parabolic metal lid of a cooking pot can be used to focus radiowaves, which is how I share Wifi between cabins during summers.

A strong EMP might be able to fry the circuits of an incomming missile, but first it would destroy your own missile defence system.

 

[SergiusPaulus]

Okay smaller scale, say a BB gun. If the propellant was an electromagnet instead of CO2 or air pumped, how far could it propel a BB? Then scale up from there.

 

[Einstein]

Okay smaller scale, say a BB gun. If the propellant was an electromagnet instead of CO2 or air pumped, how far could it propel a BB? Then scale up from there.

Check it out on YouTube. There are guys building them.

 

[SergiusPaulus]

Ah. Yep. Navy uses EM for their rail gun. Seems they could apply it to tanks and artillery on the battlefield for maybe longer range

 

[SergiusPaulus]

Duh. They are. But as a defensive tool too would be cool.

 

[Einstein]

Duh. They are. But as a defensive tool too would be cool.

I know you could build your own electromagnetic pellet gun in you wanted to.