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Could An Airplane Fly By Magnets On The Roof?  
User currently offlineBirdwatching From Germany, joined Sep 2003, 3807 posts, RR: 51
Posted (9 years 1 week 1 day 10 hours ago) and read 2984 times:

Ever since I've been a child, I've thought about this:

What keeps a plane from flying all by itself without any fuel, if you would have some kind of roof rack with magnets on top of it?

Please don't call me dumb or a nut or all that stuff. Apparently it DOESN'T work, otherwise it would have been done before. I thought about it when I was a little child. Children do make up funny things.


My point is, can anybody give me a physical explanation WHY it doesn't work? And dont thell me it's because the plane is not magnetic. (Aluminum?) They would have to make it from sheet metal then.

The magnets would pull up the plane, and at the same time rise at the same rate themselves, because they are attached to the plane. It would have to be one hell of a big magnet, I know that.

Please, can somebody shead some light on this matter. And please hold all the "You are stupid" posts. I know I am!


All the things you probably hate about travelling are warm reminders that I'm home
35 replies: All unread, showing first 25:
 
User currently offlineFlyAUA From Austria, joined May 2005, 4604 posts, RR: 56
Reply 1, posted (9 years 1 week 1 day 10 hours ago) and read 2966 times:

Quoting Birdwatching (Thread starter):
The magnets would pull up the plane

But nothing would pull up the magnets... that's why it wouldn't work  Wink



Not drinking, also isn't a solution!
User currently offlineBirdwatching From Germany, joined Sep 2003, 3807 posts, RR: 51
Reply 2, posted (9 years 1 week 1 day 10 hours ago) and read 2958 times:

Quoting FlyAUA (Reply 1):
But nothing would pull up the magnets... that's why it wouldn't work

Sure, nothing would pull them, but the fuselage would push the magnets up with it, wouldn't it?



All the things you probably hate about travelling are warm reminders that I'm home
User currently offlineFlyAUA From Austria, joined May 2005, 4604 posts, RR: 56
Reply 3, posted (9 years 1 week 1 day 10 hours ago) and read 2948 times:

Quoting Birdwatching (Reply 2):
Sure, nothing would pull them, but the fuselage would push the magnets up with it, wouldn't it?

Now you are confusing me. Do you want the magnets to pull the plane up or the fuselage to push the magnets away?

P.S. I can't believe I am even trying to discuss this  rotfl 



Not drinking, also isn't a solution!
User currently offlineAir2gxs From , joined Dec 1969, posts, RR:
Reply 4, posted (9 years 1 week 1 day 10 hours ago) and read 2944 times:

The magnets would need to be attracted to something.

Place a magnet on a hot wheels car (I assume they're still magnetic metal). Does it magically rise into the air? No. Why not? Because they is no force above the magnet that the magnet is attracted to.


User currently offlineFlyingTexan From , joined Dec 1969, posts, RR:
Reply 5, posted (9 years 1 week 1 day 10 hours ago) and read 2944 times:

Think about physics. And the phenomenon of trying to get more energy as an output verses input...

 spin 


User currently offlineBirdwatching From Germany, joined Sep 2003, 3807 posts, RR: 51
Reply 6, posted (9 years 1 week 1 day 10 hours ago) and read 2943 times:

Quoting FlyAUA (Reply 3):
Now you are confusing me. Do you want the magnets to pull the plane up or the fuselage to push the magnets away?

Okay, let's see. Let's say you were really big, like King Kong. Now you'd be holding a big magnet in your hands. The plane would cling to it, there's no doubt about that, right? OK, now before giving the plane a chance to actually cling to the magnets, you would rise the magnet at the same rate. The plane would fly, right? OK, now put King Kong onto the plane, and replace him by a roof rack. Technically it's the same, IMO.



All the things you probably hate about travelling are warm reminders that I'm home
User currently offlineTedTAce From , joined Dec 1969, posts, RR:
Reply 7, posted (9 years 1 week 1 day 10 hours ago) and read 2938 times:

Quoting FlyAUA (Reply 3):
can't believe I am even trying to discuss this

The end of this thread has "SUCKER" Written all over it... just for that Birdwatching.... do this...place a piece of steel (or Iron) in your mouth, then put an 'earth' magnet on your head... Make sure you can feel the two drawing together as you jump off the top of a 7 story parking garage... let us know how it goes!!


User currently offlineBirdwatching From Germany, joined Sep 2003, 3807 posts, RR: 51
Reply 8, posted (9 years 1 week 1 day 10 hours ago) and read 2933 times:

Quoting TedTAce (Reply 7):
let us know how it goes!!

Thanks a lot. I was trying to get enlightened by some physical explanation, and somebody had to come and trash the thread. You feel better now, right?



All the things you probably hate about travelling are warm reminders that I'm home
User currently offlineFlyAUA From Austria, joined May 2005, 4604 posts, RR: 56
Reply 9, posted (9 years 1 week 1 day 10 hours ago) and read 2930 times:

Quoting Birdwatching (Reply 6):
Okay, let's see. Let's say you were really big, like King Kong. Now you'd be holding a big magnet in your hands. The plane would cling to it, there's no doubt about that, right? OK, now before giving the plane a chance to actually cling to the magnets, you would rise the magnet at the same rate. The plane would fly, right? OK, now put King Kong onto the plane, and replace him by a roof rack. Technically it's the same, IMO.

Yes ok I understood that but if you want the aircraft to go higher (and fly like you called it) the magnets also have to go higher! And that's not just going to happen out of the blue. I think I'll stick with fuel!



Not drinking, also isn't a solution!
User currently offlineNewark777 From United States of America, joined Dec 2004, 9348 posts, RR: 30
Reply 10, posted (9 years 1 week 1 day 10 hours ago) and read 2919 times:

Okay, let's see. Let's say you were really big, like King Kong. Now you'd be holding a big magnet in your hands. The plane would cling to it, there's no doubt about that, right? OK, now before giving the plane a chance to actually cling to the magnets, you would rise the magnet at the same rate. The plane would fly, right? OK, now put King Kong onto the plane, and replace him by a roof rack. Technically it's the same, IMO.

No, it's not, since "King Kong" is supported by the ground, while the roof rack would be supported by the plane. In your theory, all the effort used to life the plane would just be pushed back down on the roof via the rack. Leaving you sitting still on the ground.

Harry



Why grab a Heine when you can grab a Busch?
User currently offlineFlyAUA From Austria, joined May 2005, 4604 posts, RR: 56
Reply 11, posted (9 years 1 week 1 day 10 hours ago) and read 2914 times:

Where's the DUDE YOU'RE DRUNK pic? Big grin


Not drinking, also isn't a solution!
User currently offlineFlyingTexan From , joined Dec 1969, posts, RR:
Reply 12, posted (9 years 1 week 1 day 10 hours ago) and read 2910 times:

Quoting TedTAce (Reply 7):

Ted –

Calm down. Bird started the thread to open some dialogue.

To paraphrase – he mentioned several times ‘children come up with crazy things’ and ‘hold the crap.’

My gawd!

  

[Edited 2005-07-15 23:25:42]

User currently onlineBraybuddy From Ireland, joined Aug 2004, 5626 posts, RR: 32
Reply 13, posted (9 years 1 week 1 day 10 hours ago) and read 2901 times:

I'm not sure if I have you right, but are you saying that if magnets were attached to the roof of a plane why wouldn't it fly? You would have to have something placed along the route to attract the magnets, which would work out very expensive.

There's nothing wrong about asking seemingly silly questions and you are right in thinking outside the box: that is how new inventions come about. The original thinking on monorail trains running above the rail by magnets was thought to be the future of rail travel, but then it was realised that it would be far too expensive having to magnetise whole railway lines. Then some bright spark realised that you could reverse the process and put the magnets on the trains instead. Obviously the technology hasn't improved enough to see maglev trains taking over from standard rail, but it'll probably happen in the future.

With oil prices rocketing and eventually running out, other ways of flying planes will be needed, so who knows, planes suspended in the air by magnets or some other forces may come in time. As for your idea being ridiculous: who could have imagined 100 years ago that moving pictures of live events on the far side of the world could be sent up into space and beamed back down to a small glass box in your front room. Practically nothing is too far-fetched to be dismissed!

[Edited 2005-07-15 23:14:23]

User currently offlineNewark777 From United States of America, joined Dec 2004, 9348 posts, RR: 30
Reply 14, posted (9 years 1 week 1 day 10 hours ago) and read 2897 times:

I'm not sure if I have you right, but are you saying that if magnets were attached to the roof of a plane why wouldn't it fly? You would have to have something placed along the route to attract the magnets, which would work out very expensive.

Yes, the only way it would work is if some 30,000 foot high monorail track to attract the magnets was built. With that price, though, you may as well just build an ordinary monorail.

Harry

[Edited 2005-07-15 23:17:09]


Why grab a Heine when you can grab a Busch?
User currently offlineAerobalance From United States of America, joined Sep 2000, 4681 posts, RR: 47
Reply 15, posted (9 years 1 week 1 day 9 hours ago) and read 2887 times:

Are you saying the magnets are an energy source or a conduit for energy? Then, where would the energy come from? Like the bumper sticker says- Ass, Gas or Grass, nobody rides for free.


"Sing a song, play guitar, make it snappy..."
User currently offlineFlyingTexan From , joined Dec 1969, posts, RR:
Reply 16, posted (9 years 1 week 1 day 9 hours ago) and read 2877 times:

Quoting Aerobalance (Reply 15):
Like the bumper sticker says- Ass, Gas or Grass, nobody rides for free

I like that bumper sticker!  Wink

===
The support structure will exhort more force than the magnets!

 spin 


User currently offlineBirdwatching From Germany, joined Sep 2003, 3807 posts, RR: 51
Reply 17, posted (9 years 1 week 1 day 9 hours ago) and read 2865 times:

Ok. Now here's a similar idea which really would work. Imagine a room that has magnets on the ground, and then your bed, chair, and table have magnets on the bottom, but in a way that they push the other magnets.

Now your whole furniture would be floating, right? Like the monorail. Wouldn't that be cool? Or would it damage your brain?



All the things you probably hate about travelling are warm reminders that I'm home
User currently offlineNewark777 From United States of America, joined Dec 2004, 9348 posts, RR: 30
Reply 18, posted (9 years 1 week 1 day 9 hours ago) and read 2854 times:

Ok. Now here's a similar idea which really would work. Imagine a room that has magnets on the ground, and then your bed, chair, and table have magnets on the bottom, but in a way that they push the other magnets.

It would probably be better to put the magnets on the top, or they would probably flip upside down.  Wink

Interesting, but I don't think it would serve any practical purpose.

Harry



Why grab a Heine when you can grab a Busch?
User currently offlineAerobalance From United States of America, joined Sep 2000, 4681 posts, RR: 47
Reply 19, posted (9 years 1 week 1 day 9 hours ago) and read 2850 times:

Quoting Birdwatching (Reply 17):
Wouldn't that be cool?

There may be some heat build-up there, so it may not be cool...

Quoting Birdwatching (Reply 17):
Or would it damage your brain?

Damage whose brain?  Wink



"Sing a song, play guitar, make it snappy..."
User currently offlineYhmfan From Canada, joined Feb 2004, 607 posts, RR: 0
Reply 20, posted (9 years 1 week 1 day 9 hours ago) and read 2841 times:

Quoting Birdwatching (Reply 17):
Or would it damage your brain?

Please tell me you have not participated in this experiment!!!!!.... or may be.......  Wink

All kidding aside, I love your sense of humour. This is a funny thread.



If at first you don't succeed, skydiving is not for you
User currently offlineNewark777 From United States of America, joined Dec 2004, 9348 posts, RR: 30
Reply 21, posted (9 years 1 week 1 day 9 hours ago) and read 2839 times:

This reminds me of that old pigeons-in-a-747 thread from way back. Anyone have a link to that one?

Harry



Why grab a Heine when you can grab a Busch?
User currently offlineBhill From United States of America, joined Sep 2001, 948 posts, RR: 0
Reply 22, posted (9 years 1 week 1 day 9 hours ago) and read 2839 times:

Actually...about the magnets in the floor...it's kind of how Maglev trains work


Carpe Pices
User currently offlineLogan22L From , joined Dec 1969, posts, RR:
Reply 23, posted (9 years 1 week 1 day 8 hours ago) and read 2809 times:

I haven't laughed this hard in a while. Thanks. Seriously Birdwatcher, I'm not sure whether you have the potential to become one of the most innovative engineers of all time or if your first project would be to construct a bridge out of Jell-O and Tampax.

Quoting Newark777 (Reply 21):
This reminds me of that old pigeons-in-a-747 thread from way back. Anyone have a link to that one?

Harry: I'll post the link if you swear you'll base your opinion of Ted Kennedy on what he's accomplished, not what Saturday Night Live parodies have been done on him.  Wink

http://www.airliners.net/discussions...neral_aviation/read.main/730650/4/

BTW, this pigeon thread pre-dates both of us, but nice use of the subjunctive in the thread title.


User currently offlineAloges From Germany, joined Jan 2006, 8680 posts, RR: 43
Reply 24, posted (9 years 1 week 1 day 8 hours ago) and read 2798 times:

Quoting Birdwatching (Reply 17):
Now your whole furniture would be floating, right? Like the monorail.

No, it would flip upside down and stick to the floor. If you put magnets on the ground that push your bed up and magnets on the ceiling that pull your bed up, it would still flip. You could of course try to prevent the bed from flipping, then it could work.

Quoting Birdwatching (Reply 17):
Wouldn't that be cool?

Only if you managed to not get squashed by the bed.  Wink

Quoting Birdwatching (Reply 17):
Or would it damage your brain?

Better not tell anyone undergoing an MRI if that's the case!

Quoting Logan22L (Reply 23):
I'm not sure whether you have the potential to become one of the most innovative engineers of all time or if your first project would be to construct a bridge out of Jell-O and Tampax.

That's so McGyver!  rotfl 



Walk together, talk together all ye peoples of the earth. Then, and only then, shall ye have peace.
25 Post contains images Newark777 : Harry: I'll post the link if you swear you'll base your opinion of Ted Kennedy on what he's accomplished, not what Saturday Night Live parodies have b
26 Logan22L : I found the link in "Site Related," in a thread started by TheCoz: "Thread of the Year." Somehow, I remembered it was in there. Even McGyver might ha
27 Birdwatching : I would install a sort of rail that would hold the bed, vertically. Imagine jumping into that bed. It would smoothly suspend the impact.
28 Post contains images Backfire : Birdwatching: Despite the smart-arse remarks, it's interesting that no-one here seems to have made a serious attempt to answer your original question.
29 Logan22L : "Oh, 'an aeroplane'. Oh, I say, we are grand, aren't we? (imitation posh accent) 'Oh, oh, no more buttered scones for me, mater. I'm off to play the
30 FlyingTexan : Check reply #16
31 Gary2880 : i have another one if i may chime in. for years i thought it would be faster to cross the atlantic by staying still, if the time diffrence between lon
32 Post contains images Newark777 : "Oh, 'an aeroplane'. Oh, I say, we are grand, aren't we? (imitation posh accent) 'Oh, oh, no more buttered scones for me, mater. I'm off to play the g
33 Logan22L : You'll have to thank Graham Chapman for that one, but you can't. He's dead.
34 Post contains images Backfire : Er...no it wasn't. Had you actually read the entire thread, you'd have realised that. Or perhaps you believed the earlier explanations?   "Oh, 'an a
35 Post contains images Newark777 : Er...no it wasn't. Had you actually read the entire thread, you'd have realised that. Or perhaps you believed the earlier explanations? Yes, I read it
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