According to the first caller on this weeks AXP, you can detect God with them. Yep, real screw ball.

You have to be careful with neodymium magnets, they are super strong, I use them in my woodworking for door catches, they line up door wonderfully and there's nothing in the way like with regular door catches. I use them to hang tools on the metal cabinets of my machinery, they're amazingly strong for their size. I've gotten a blood blister or two with them also.

GC

(January 22, 2015 at 3:16 pm)Exian Wrote: Awesome! Great ideas.

I've just noticed your profile says Ohio. I'm travelling there next week to Mount Vernon for 2 days, are there any local customs I should be aware of before I land?

If you have a sandbox for your kids, or even access to dry dirt, you can collect metal filings simply by rolling the magnets in the sand or dirt. That in itself is a kind of science experiment.

(January 22, 2015 at 2:00 pm)vorlon13 Wrote: Get the kids a couple litres of liquid nitrogen and let them play with super cold magnets !!

You can make a cryogenic fluid by chilling down 99% isopropyl alcohol with dry ice.

Whatever you do, don't drink the cryogenic fluid.

(January 22, 2015 at 5:24 pm)TubbyTubby Wrote:

(January 22, 2015 at 3:16 pm)Exian Wrote: Awesome! Great ideas.

I've just noticed your profile says Ohio. I'm travelling there next week to Mount Vernon for 2 days, are there any local customs I should be aware of before I land?

Oh cool! That's a few hours southwest of me, so I'm not sure about the local scene, and it's kind of hard to pin down any social norms around here, we sort of vary by personality. I tend to notice we're nice people, but may seem rude or mean due to our private nature, like not staring or invading bubbles and what not. I think we're similar to a lot of European countries in this way. But you may just as easily run into super friendly and talkative people.

Oh, we're very proud of our sports teams. You'll be close to Columbus, so brushing up on some Buckeye's knowledge couldn't hurt.

And it's pop, not soda! Lol

Sorry I couldn't be more help, it's sort of hard to be aware of these types of things when you're so used to them. I hope you enjoy you stay! Actually you should tell me what sort of things you find odd when you get back.

Take you daughter to a goth festival of some sort (I'm sure they have them). Wander about until you find a knot of unusually heavily pierced people. Throw a handful of the magnets into their midst, then lecture your daughter about the dangers of rapid blood loss.

Boru

(January 22, 2015 at 6:25 am)Exian Wrote: So I want to set up some fun science experiments I could do with my daughter and I'm looking for some suggestions from all you smart people. I'm thinking of buying some ferrofluid, but I think that stuff works with common magnets. Any ideas?

Buy or find a small section of copper pipe and drop them though the hole.













These are fun..

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(January 22, 2015 at 3:16 pm)Exian Wrote: Awesome! Great ideas. I was thinking about the metal shavings thing but I couldn't figure a way to get the shavings. I don't have a bench grinder, but I'm pretty sure I have a few disc for the hand grinder left.

I just watched a video earlier of the contraption in that picture. These have pretty small holes, but I think I could find something small enough for the axle.

What happens with super cooled magnets? I know a heated magnet loses its magnetic properties, so my instinct is to guess it somehow gets stronger??

Idunno.

I just don't like kids.

(January 22, 2015 at 8:05 pm)Brakeman Wrote:

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(January 22, 2015 at 6:25 am)Exian Wrote: So I want to set up some fun science experiments I could do with my daughter and I'm looking for some suggestions from all you smart people. I'm thinking of buying some ferrofluid, but I think that stuff works with common magnets. Any ideas?

Buy or find a small section of copper pipe and drop them though the hole.













These are fun..

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