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The attraction of magnets

:: EPE Chat Zone ­:: ­Radio Bygones Message Board :: » EPE Forum Archives 2010 - » Archive through 21 February, 2011 » The attraction of magnets « Previous Next »

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alec_t
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Username: alec_t

Post Number: 511
Registered: 03-2009

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Posted on Friday, 11 February, 2011 - 10:39 am:   Edit Post Delete Post Print Post    Move Post (Moderator/Admin Only)

Kids (adults too!) can get hours of fun from playing with magnets, and junked electrical/electronic gear provides a good source of magnets of various types to keep the little monkeys busy (providing they're over the age when they're likely to swallow the magnets!!) :-

magnets

The 'eyebrows' were from a disk-drive motor, the 'eye' on the left from a stepper-motor, the 'eye' on the right from a loudspeaker, the 'nose' from an earpiece and the 'mouth' from a VCR motor.
The red 'tongue' is a length of mains cable core forming a handle, without which my grandkids couldn't remove the magnet from the fridge door!

Alec
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steerpike
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Post Number: 529
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Posted on Friday, 11 February, 2011 - 10:05 pm:   Edit Post Delete Post Print Post    Move Post (Moderator/Admin Only)

Ah, the young people of today have it so good. The horseshoe magnets I had in my childbearing days were barely able to lift the paperclip attached to a cardboard cutout of a fish.

Try that with a modern hard-disc-drive actuator motor magnet and you'll have all the fish in the bucket on your rod.
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muskrat
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Post Number: 349
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Posted on Saturday, 12 February, 2011 - 08:24 am:   Edit Post Delete Post Print Post    Move Post (Moderator/Admin Only)

Waaaaaaayy too much time on your hands!!!
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alec_t
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Post Number: 514
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Posted on Saturday, 12 February, 2011 - 11:47 am:   Edit Post Delete Post Print Post    Move Post (Moderator/Admin Only)

Not on those days when we baby-sit the grandkids!
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muskrat
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Post Number: 350
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Posted on Saturday, 12 February, 2011 - 11:55 am:   Edit Post Delete Post Print Post    Move Post (Moderator/Admin Only)

Maybe I should get lessons. I am about to become a grandfather for the first time - mid to late March. Really looking forward to it.

Won't be baby-sitting, though, I'm in Africa, son and family in UK.
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joe
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Post Number: 1043
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Posted on Saturday, 12 February, 2011 - 12:03 pm:   Edit Post Delete Post Print Post    Move Post (Moderator/Admin Only)

Brian, your not thinking 21st century.

You need one of those cheap robotic arms, PC, web cam and a PIC to control it all at your families location, and a joystick and PC at your end :-)

Remote controlled fishing...

Would actually make a cool project.

(Message edited by joe on 12 February, 2011)
Read my ramblings - www.techbites.com/joe-farr
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muskrat
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Post Number: 351
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Posted on Saturday, 12 February, 2011 - 03:52 pm:   Edit Post Delete Post Print Post    Move Post (Moderator/Admin Only)

OK Joe .... yet another hare-brained idea. The only difference is that this time it came from you!!

However .... I like it! They - yes .. twins, boy and girl - haven't even been born yet, so this is all a bit premature. BUT, a project of this magnitude will HAVE to fully tested for functionality, safety and fun factor.

My son and I are going to declare ourselves official testers of the remote magnetic fishing system. Could take several months .... hmmmm, where do I begin???

Thanks Joe - seriously inspirational post!
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twintub
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Post Number: 146
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Posted on Sunday, 13 February, 2011 - 12:40 am:   Edit Post Delete Post Print Post    Move Post (Moderator/Admin Only)

This thread reminds me of a simple 'party trick':

Parts list:
Powerful but small cylindrical magnet such as Maplin YA29G.
Steel woodscrew - e.g No8 35mm.
AA alkaline cell.
Wire circa 100mm. (insulated hook-up wire will do, with the ends bared and twisted).

Using these four items, find a way to make an electric motor!

I'm sure some (all?) of you may know the answer to this teaser already, but I'll hold off with the solution for now!
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muskrat
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Post Number: 352
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Posted on Friday, 18 February, 2011 - 12:56 am:   Edit Post Delete Post Print Post    Move Post (Moderator/Admin Only)

I know this has absolutely nothing to do with the thread - so apologies in advance.

At 02:25 I became the proud Grand Father to Harry and Niamh. Welcome to the world. Soldering irons and a bag full of useful components are in the post.
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terry
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Posted on Friday, 18 February, 2011 - 08:16 am:   Edit Post Delete Post Print Post    Move Post (Moderator/Admin Only)

Congrats ;)

Terry
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atferrari
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Username: atferrari

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Posted on Friday, 18 February, 2011 - 11:00 am:   Edit Post Delete Post Print Post    Move Post (Moderator/Admin Only)

Congratulations!

Is Niamh a girl?
Agustín Tomás - Buenos Aires - Argentina
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muskrat
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Post Number: 353
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Posted on Friday, 18 February, 2011 - 01:03 pm:   Edit Post Delete Post Print Post    Move Post (Moderator/Admin Only)

Yes. Niamh is a girl's name. It is of Irish origin, meaning 'radiant' or 'bright'. Really cool name! imho!
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alec_t
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Posted on Friday, 18 February, 2011 - 03:33 pm:   Edit Post Delete Post Print Post    Move Post (Moderator/Admin Only)

Congratulations, Brian. And to son and family, too, of course!

Alec
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ant
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Username: ant

Post Number: 769
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Posted on Saturday, 19 February, 2011 - 08:54 pm:   Edit Post Delete Post Print Post    Move Post (Moderator/Admin Only)

Hello all,

My party trick - for when they're a little older - is pre-sliced bananas. Take a sewing needle, stick it in the side of the banana and move it from side to side. Remove, repeat as required. Great fun!

Regards Ant

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