Your video, Tossing a Stapler into an MRI Machine, has made it into the Top 15 New Videos listing. Congratulations on your achievement. For your contribution you have been awarded 1 Power Point.

>> ^spoco2:

So, this is a decommissioned MRI, and they have a blog all about things to do with MRIs and safety. There are other videos of the same ilk which are obviously aimed for display at the hospitals themselves.
MRIs are very dangerous, and people don't necessarily know that, being that it's an 'invisible' danger.


MRIs aren't exactly roaming the wild. The only time you would be in close contact with one if you're not in the medical field is if you're in a very skimpy gown. I don't really think they're all that dangerous if you can't really play with them or anything.

>> ^dag:

Depends. Do you have balls of steel?>> ^mxxcon:
What if i put my balls in there?

Not steel but wolfram..

Comment hidden because you are ignoring dag. (show it anyway)

Depends. Do you have balls of steel?>> ^mxxcon:

What if i put my balls in there?

So, this is a decommissioned MRI, and they have a blog all about things to do with MRIs and safety. There are other videos of the same ilk which are obviously aimed for display at the hospitals themselves.

MRIs are very dangerous, and people don't necessarily know that, being that it's an 'invisible' danger.

Wow shit howdy. This vid is great.

Group think within the Sift -- how does this vid reflect "life" on the Sift?

It also made me wildly interested in seeing an MRI of a troll's brain when they post an egregiously awful troll that is way outside social norms. What parts of their brains are firing? How does it compare to my brain when I post something that I believe won't receive much support but I post it anyway because I think it is the right thing to do? Both of us are outside the norm -- but is the same part of the brain engaged?

Fascinating.

Anybody got access to an MRI machine?

The thumbnail image for this video has been updated - thumbnail added by vaporlock.

I got to play with a big aluminum bar in an MRI machine once. It is impossible to move quickly.

This is a really neat effect. Thanks @juliovega914 for some more info on the physics.

As aluminum isn't magnetic, in and of itself, the idea of using a magnet with aluminum can seem illogical. If it weren't for the eddy currents and Lenz's law it would make no sense.

I found a great real-world explanation of this same effect:

"A magnetic resonance imaging (MRI) machine uses an enormous and extremely strong magnet to study a patient's body. The magnet, which has its north pole at the patient's head and its south pole at the patient's feet, is actually a coil of superconducting wire through which electric charges flow.

Aluminum isn't normally magnetic, but as you carry a large aluminum tray toward the magnet, you find that the magnet repels the aluminum. Once again, Lenz's law. The magnet induces a magnetic field in the moving aluminum tray to oppose its own, effectively pushing it away.

You eventually manage to get the aluminum tray up to the magnet. As long as the tray doesn't move, it experiences no magnetic forces. But when you drop it, it falls past the magnet remarkably slowly. What slows down its fall?
That trickster, Lenz. When the tray is stationary, the magnetic field of the magnet is not changing, but as soon as it moves, the field begins changing and an opposing field is induced."

Tags for this video have been changed from 'qi, stephen fry, teenages, mri, emotions, language' to 'qi, stephen fry, teenages, mri, emotions, language, legally allowed, new band' - edited by calvados

What no MRI of her genitals?

>> ^geo321:

BomeRemamake is one manipulative motherfucker. try and remove this one of mry comments.


I cant, you made it. for the 3rd time, you have to make the post, to be able to edit it. I am not a hacker or phreaker, grow up. you have a ruby and you dont even know that basic information, go read the Faq or be clear before you go saying nonsense like that.

Those MRI pictures look like something Billy Bob Thornton would have on his walls.

>> ^Deano:

Er what? It's got MRI equivalent radiation levels? You can't bring metal near it? MRI machines have very high radiation levels, far greater than x-rays. Not sure about this at all. It looks cool though.


MRI doesn't have any radiation. It has large static magnetic fields and radio waves - that's not what most people would term radiation. It's very powerful but hasn't been shown to have negative effects like x-rays (which are an ionizing form of radiation).

I wonder how it took them 7 years to develop what appears to be a pair of large permanent magnets with some shielding. Probably costs a fortune too.

Er what? It's got MRI equivalent radiation levels? You can't bring metal near it? MRI machines have very high radiation levels, far greater than x-rays. Not sure about this at all. It looks cool though.