One of mine while building a wind turbine was playing with the N42 grade 2" diameter 1/2" thick Ni-Cu-Ni plated NdFeB disk magnets that I ordered for it. They are rated at roughly 13,500 gauss, and if you get your fingers caught between two attracting magnets, the fingers will get broken and the magnets will strip the skin off of them or worse.
The only downside is that pulling them off of metal is a *****. We're talking 90 lbs of pulling force per 2" diameter magnet.
Anyway, I loved holding steel pipe about a foot above them and watching them jump up and *THWACK*. I'd also take a set of about 6 of them, let themselves adhere to a sheet of metal with all north poles facing outward, take a 2" diameter PVC pipe, shove a disk magnet down it with north facing the other magnets with a broom handle, drill a hole in the pipe above the magnet, shove in a carbide drill bit through both ends to hold the magnet in place, pull the broom handle out, aim, remove the carbide drill bit and *THWING* watch it shoot out 10-15 feet.
Throwing them up into mid air and watching them clack together from about 1.5-2 feet apart was pretty fun.
I did have to be a little careful though. They chip and crack easily, and two of them did have small 1mm chips on them. Nothing of consequence though; it was well worth it.
When I graduate college, I'm SO getting another hunting slingshot and a set of about 100 of these, only perhaps smaller in size. I'm just aching to do something risky and stupid with these things. They're so awesome.
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There's an unnamed Mod on an unnamed board who is the biggest PITA imo, banned me and some other posters (The Toecutter knows who I talkin'bout) because we didn't agree with 'em. I just love popping in every few months and trolling.
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I made an objective comment about how a member of that site was unfairly treated by the whole of the site itself and how he was banned for an offense that others committed just the same. Some of the mods(especially the one you refer to in particular) automatically assumed that I was specifically accusing them of being biased. I know accusing the mods of bias is a violation of the COC there, but that is not what I did.
But, since they automatically assumed that is what I was doing, then I have no reason to conclude after the fact that they are extremely biased, even though I did not hold that conclusion at the start and even though I actually agree with these people on a lot of issues(as much as they don't seem to understand technology too well).
If they were to hypothetically ban me and I really wanted to, it wouldn't be too complicated a matter to admin myself on that site. So many security loopholes it ain't even funny. But I'm not an ******* like that, so the odds of me doing it are zero. I still respect many of the people there, including the douche that accused me of violating the COC.
Unlike you, I wasn't banned from there, but left on my own accord. I might post there again some day; perhaps when I finish that wind turibine I'll post a report on it, a description of how others could replicate it for cheap, circuit diagrams, testing results, and other things, and give a progress update on my GT6 electric conversion. When it's drivable, I'm definately going to post videos of hooligan antics committed in that car.
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