Chronology | Current Month | Current Thread | Current Date |
[Year List] [Month List (current year)] | [Date Index] [Thread Index] | [Thread Prev] [Thread Next] | [Date Prev] [Date Next] |
At 12:11 PM 4/23/2006, Mike M., you wrote:
A former student emailed me to inquire about why a fair amount of
silverware in restaurants seems to be magnetized. (He lives in the
Seattle area now.) I'm not sure how he noticed, except perhaps
balancing a fork on a spoon and seeing it attracted to a knife, or
something like that.
He thinks perhaps some new type of commercial dishwasher might be
responsible.
Any ideas (I don't have any) would be welcome.
Mike
--
Mike Moloney, Physics & Optical Engineering Department
Rose-Hulman Inst of Tech, 812 877 8302
moloney@rose-hulman.edu http://www.rose-hulman.edu/~moloney
Percussion, thermal cycling and induction are the usual ways of
providing remanent magnetism in magnetic materials.
I am not sure whether this effect exists in new utensils or
appears with use though.
Brian Whatcott Altus OK Eureka!
_______________________________________________
Forum for Physics Educators
Phys-l@carnot.physics.buffalo.edu
https://carnot.physics.buffalo.edu/mailman/listinfo/phys-l