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 -
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 -
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 -
MRI scanners are hungry for any metal objects in the nearby vicinity, with hilarious and sometimes tragic
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 -
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 -