Can Magnets Really Prevent Car Crashes? Debunking the Myth

In summary, Dave's idea of using magnets to prevent car crashes is flawed because the magnets do not scale up to the real world and would only cause damage to the car and the passengers.
  • #71
Arpiet said:
Stop behaving like small kids you don't have a very simple idea
you all mean that if we place a net of magnet over the cars then due to the force of repulsion the cars will not collide but on the same hand the another pole exposed to the another side will attract the different pole and that could be a cause for the accident but my sweet companions if you place two magnets in such a way that their same pole (south pole) will face to every internal face and due to this all the cars will only have the north pole exposed to the outer and that will only prevent accident not it'll going to cause it :-)

I highly advise you to re-read the thread. It has already been explained that this concept is fundamentally flawed and will not work.
 
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  • #72
Hi Arpiet, welcome to PF!
Arpiet said:
if you place two magnets in such a way that their same pole (south pole) will face to every internal face and due to this all the cars will only have the north pole exposed to the outer
No, this arrangement would be a magnetic multipole, not a monopole. Other similar magnetic multipoles would be drawn to the joint between the two south poles. It would cause collisions if strong enough, and it would make them into side impact collisions where there is less of a crumple zone available.
 
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  • #73
DaleSpam said:
Hi Arpiet, welcome to PF!No, this arrangement would be a magnetic multipole, not a monopole. Other similar magnetic multipoles would be drawn to the joint between the two south poles. It would cause collisions if strong enough, and it would make them into side impact collisions where there is less of a crumple zone available.

This is why we need to spend billions of dollars on research so we can find magnetic monopoles. We would then just super-glue quadrillions of them to the exteriors of our vehicles.

While we're waiting, why don't we just negatively charge all the cars, with some unknown number of coulombs of electrons.

Hmmm... That won't work. When the cars approach each other, the electrons will simply race to the opposite ends. Ah ha! But that's only with metal cars. If we make them out of some type of insulating material, it might work. Or electrically charged paint!

hmmm...

wiki on the coulomb said:
In everyday terms
...
According to Coulomb's law, two negative point charges of 1 C, placed one meter apart, would experience a repulsive force of 9×109 N, a force roughly equal to the weight of 920000 metric tons of mass on the surface of the Earth.

Well that sounds like plenty of force. But obviously, cars aren't point sources. I suppose we could model cars as spheres, just to make the math simpler.

skreeeeetch!

This isn't going to work at all. Half of the population is not going to get into these cars after they spent all that money on perms.

l.jpg

Never mind...

ps. People just need to learn how to drive, properly...
 
<h2>1. Can magnets really prevent car crashes?</h2><p>No, magnets cannot prevent car crashes. While they may have some impact on the car's performance, they do not have the ability to prevent collisions.</p><h2>2. What is the myth surrounding magnets and car crashes?</h2><p>The myth is that placing magnets on a car can somehow create a force field that will protect the car from collisions.</p><h2>3. Is there any scientific evidence to support this myth?</h2><p>No, there is no scientific evidence to support the idea that magnets can prevent car crashes. In fact, studies have shown that magnets have little to no effect on the performance of a car.</p><h2>4. Are there any potential dangers associated with using magnets on a car?</h2><p>Yes, there are potential dangers associated with using magnets on a car. Magnets can interfere with the car's electronic systems and cause malfunctions, which could actually increase the risk of a car crash.</p><h2>5. What is the best way to prevent car crashes?</h2><p>The best way to prevent car crashes is to follow safe driving practices, such as obeying traffic laws, avoiding distractions while driving, and maintaining a safe distance from other vehicles. It is also important to regularly maintain your car to ensure it is in good working condition.</p>

1. Can magnets really prevent car crashes?

No, magnets cannot prevent car crashes. While they may have some impact on the car's performance, they do not have the ability to prevent collisions.

2. What is the myth surrounding magnets and car crashes?

The myth is that placing magnets on a car can somehow create a force field that will protect the car from collisions.

3. Is there any scientific evidence to support this myth?

No, there is no scientific evidence to support the idea that magnets can prevent car crashes. In fact, studies have shown that magnets have little to no effect on the performance of a car.

4. Are there any potential dangers associated with using magnets on a car?

Yes, there are potential dangers associated with using magnets on a car. Magnets can interfere with the car's electronic systems and cause malfunctions, which could actually increase the risk of a car crash.

5. What is the best way to prevent car crashes?

The best way to prevent car crashes is to follow safe driving practices, such as obeying traffic laws, avoiding distractions while driving, and maintaining a safe distance from other vehicles. It is also important to regularly maintain your car to ensure it is in good working condition.

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