i had a little argument with a friend at work. its about fundamental interaction. i do belive gravity is the weakest force on earth, but earth is the key word in the sentence. i know put a pin on a magnet and it will stay. but if you use the same pin and same magnet on Jupiter, i am positive that gravity will be stronger. why, the pin will be way heavier on Jupiter than earth and the magnet will keep the same magnetivity anywhere in the universe. i am not talking about electromagnetivity but a magnet in the nature. electromagnetivity will be as strong as the power behind it. what about black holes? any tough on this subject.

please lets be civilized about this question.
thank you

 

Gravity is the weakest force by far. Electromagnatism holds our atoms together LOL. I don't remember the other forces but I'm sure theire stronger too.

thewird

 

yeah, but when a black hole suck up a near by star, he's sucking up there atoms. i understand it works like that on earth, but on a planet where let say the gravity would be a 1000x stronger than earth, the magnet would keep is mass, so his magnetivity would stay the same. im talking about a natural magnet. not an electromagnet backed up by a power source. let say it you have a 1kg pin, even if the mass stay the same, the weight change because of gravity. i dough the same magnet would hold it when it feel like a metric ton.

 

I get a headache when I think about this stuff, but the pin will be way heavier (weight but it's mass stays the same everywhere). The electromagnetic force between the pin and the magnet will be the same everywhere as well, but on jupiter pulling apart the pin and the magnet on jupiter will be much harder.

"If it weighed 100lbs on Earth (where gravity is 9.8 m/s2), it would weigh about 254lbs on Jupiter, or be around 254% as heavy (or 154% heavier)."

"This is because, though Jupiter is 318 times the mass of the Earth, it is 11 times greater in diameter. Gravity increases with mass, but decreases with the distance from the centre of mass; the gravitational force g=m/r2 = gravitational constant x mass of Jupiter x mass of the object all over the distance between the centres of mass squared"

+1 Gravity is the weakest force in the universe it just looks strong to us wobbly bags of mostly water.
But I do believe our understanding of the universe at this point in time is basically flawed!

Read this it may help in your debate with the guy at work:
http://library.thinkquest.org/27930/forces.htm

But I beli

 

Controlling the experiment to suit your example isn't really a good comparison. On earth, you still need a magnet of sufficient size and strength to hold the pin up. A black hole defies the regular laws of physics at the point where density becomes infinite. So your trying to use something that I don't think we've even figure out yet lol.

How about this. 2 electrons will want to come together due to gravity however the their charges will repel and never allow for that to happen. Gravity is basically a non-force in that case as the strength difference is huge.

I haven't thought about this stuff since I left school lol.

thewird

 

In theory in a black holes electrons will come together under the enormous gravity of the the black hole. But only GOD really know what happens at that point or do they just get spit out the other end of the black hole in one of the infinite omniverses that occupies the same space as the black hole.

We as human beings occupy a 3 dimensional reality, so how can we ever understand a multi dimensional omniverse with more than 3 dimensions, it isn't going to happen.

My head starting to hurt again bye by b y y e . . . . . . . .

 

Strings vibrating and multiple dimensions is the answer! We don't understand black holes, so I dismiss that evidence lol.

Was our universe once a black hole? Some force acted on it and it exploded and time began. At least that's the theory?

thewird

 

Gravity is the weakest of the four fundamental forces - gravity, small, electromagnetic, strong

Strong force begin much stronger than the gravitational, however is limited to subatomic distances. But i assure you gravity is by far the weakest of the 4 forces.

A black hole, simply put is gravity gone mad. But again, is still weaker than the other three forces. The advantage of gravity in this case is it is able to exhibit its absolute force where again strong force is limited to subatomic distance.

When an object reaches its critical mass, the escape velocity required to escape exceeds the speed limit of light, and because you can't exceed the speed limit of light, nothing, including light, can escape. Thus a black hole. But thats a whole different topic.

garvity < small, electromagnetic, and strong by far.

 

thanks guys, its always fun to have nice gentlemen debates. i'll read more about it. i stop thinking about that since college, but that elechicken at work brough the subject. ( sorry for all the electricians in the forum, its just they always complain about us welding, thats why i call them elechickens).

out of the subject... i thinking about that. can we call a FD a mid-ship engine (MR)? why? the 13b kinda sit behind the Front wheels, like a MR2 who sit in front of the rear wheels

 

Mid-ship technically just means the engine is between the front and rear wheels. That generally was only achieved with rear engined cars and so has become almost assumed that MR means the engine is in the back end of the car. But as seen with the rx7 you can still be MR without the engine being behind the driver. Though people still always think of an rx7 as FR anyways.