14 posts tagged with magnetic.
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Miniature Origami Robot Self-folds, Walks, Swims, and Degrades

Origami Robot Folds Itself Up, Does Cool Stuff, Dissolves Into Nothing [yt] - "At ICRA 2015 in Seattle yesterday, researchers from MIT demonstrated [yt] an untethered miniature origami robot that self-folds, walks, swims, and degrades. That's the title of their paper [pdf], in fact, and they delivered on all of those promises: from a flat sheet with a magnet on it, their robot folds itself up in just a few seconds, is immediately ready to zip around on land or water driven by magnetic fields, and then when you've run out of things to do with it, drive it into a tank of acetone and it'll dissolve. This is the first time that a robot has been able to demonstrate a complete life cycle like this, and eventually, it'll be doing it inside your body." (via; previously)
posted by kliuless on May 29, 2015 - 38 comments

In geologic terms it's imminent. In biologic, maybe within a lifetime.

Earth's Magnetic Field May Be About to Flip [summary] - "Earth's last magnetic reversal took place 786,000 years ago and happened very quickly, in less than 100 years -- roughly a human lifetime. The rapid flip, much faster than the thousands of years most geologists thought, comes as new measurements show the planet's magnetic field is weakening 10 times faster than normal and could drop to zero in a few thousand years." (via)
posted by kliuless on Dec 20, 2014 - 35 comments

How Fido Keeps in Alignment

If you've ever wondered why your dog dances back and forth before it squats and drops, now we know. A recent study in the journal "Frontiers In Zoology" has found that dogs align with north-south magnetic fields while pooping. "The researchers found that dogs prefer to point along the north-south axis when they do their business – as long as the magnetic field is stable. When the magnetic field shifts – say, because of an oncoming solar storm – it becomes more difficult to see the pattern.
posted by Xurando on Jan 4, 2014 - 74 comments

F*ing magnets, how do they work?

Magnetic resonance images of fruits and vegetables. And more MRI of more foods. Another 3D rendering of a broccoli MRI. [more inside]
posted by sararah on Oct 4, 2012 - 20 comments

September 1st, 1859: The Week the Sun Touched the Earth

Boston telegraph operator, (to Portland telegraph operator): "Please cut off your battery entirely from the line for fifteen minutes."
Portland operator: "Will do so. It is now disconnected."
Boston: "Mine is disconnected, and we are working with the auroral current. How do you receive my writing?"
Portland: "Better than with our batteries on. Current comes and goes gradually."
Boston: "My current is very strong at times, and we can work better without the batteries, as the Aurora seems to neutralize and augment our batteries alternately, making current too strong at times for our relay magnets. Suppose we work without batteries while we are affected by this trouble."
Portland: "Very well. Shall I go ahead with business?"
Boston: "Yes. Go ahead." — Ars Technica covers the story of the Great Auroral Storm of 1859, and the awe it inspired.
posted by Toekneesan on May 3, 2012 - 23 comments

Turns out we ARE hosting an intergalactic kegger down here

The twin Voyager probes launched by NASA in 1977 have discovered something new in the heliosheath at the edge of the solar system: it's frothy out there. Video. Press Release. Via. Voyager: Previously.
posted by zarq on Jun 13, 2011 - 33 comments

Reinventing Magnetic Core Memory

Magnetic core memory reborn is a project by Ben North and Oliver Nash implementing 32 bits of core memory using literal tiny core magnets on the Arduino board. The history and operation of core memory is explained and diagrammed. The Arduino has over 4,250 times this amount of memory standard.
posted by odinsdream on May 12, 2011 - 29 comments

'We've all been taught that this doesn't happen'

A dramatic and surprising magnetic effect of light discovered by University of Michigan researchers could lead to solar power without traditional semiconductor-based solar cells.
posted by Confess, Fletch on Apr 17, 2011 - 19 comments

Fiat Lux

I have no idea what you're talking about, so here's a French magneto-lamp.
posted by boo_radley on Nov 14, 2009 - 30 comments

Bad Maxwell

▼●B≠0
posted by Confess, Fletch on Sep 6, 2009 - 91 comments

Scream and Run Away

Lemony Snicket (Daniel Handler in real life), author of the 13 books in "A Series of Unfortunate Events" [Flash], has now released the album A Tragic Treasury [Sound] in which he plays the acordian. The CD also features Stephin Merritt, with whom Handler was in the band called The Magnetic Fields. Handler is touring the country to plug the album and latest book. [via NPR]
posted by niles on Dec 3, 2006 - 22 comments

The machine that makes you more smarter

The machine that makes you a savant. (NY Times, No registration copy here) Transcranial Magnetic Stimulation sounds sketchy at first, but there is growing evidence this device developed for brain mapping can change and maybe even enhance mental functions, and may (or may not) be especially useful against depression. The results of the first major US trials will come out in 2006, as discussed in this MIT Tech Review article (PDF). Are you ready for one at home?
posted by blahblahblah on Oct 24, 2005 - 43 comments

It's a poltergoost!

Sucked in! MRI scanners are hungry for any metal objects in the nearby vicinity, with hilarious and sometimes tragic results. The roughly 10,000 scanners in the United States are found not just in hospitals, but in storefront clinics and even mounted on trucks, making rounds of small hospitals or parking at malls to do scans for a fee.
posted by asok on Aug 20, 2005 - 50 comments

"Protrude, Flow"

"Protrude, Flow" A most amazing artistic endeavor - metallic filings dumped in oil to make magnetic liquid, and the fun that ensued afterwards. Make sure to check out the video as well! (from memepool)
posted by skinjob on Aug 23, 2001 - 11 comments

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