home *** CD-ROM | disk | FTP | other *** search
- Path: sparky!uunet!digex.com!digex.digex.com!bdoa
- From: bdoa@digex.digex.com (Barry Adams)
- Newsgroups: sci.physics
- Subject: Home made monopoles
- Date: 23 Jan 1993 09:42:42 GMT
- Organization: Express Access Online Communications, Greenbelt, MD USA
- Lines: 23
- Message-ID: <1jr3uiINNcjk@mirror.digex.com>
- NNTP-Posting-Host: access.digex.com
- X-Newsreader: Tin 1.1 PL3
-
-
-
- Home made magnetic monopoles
- ============================
-
- Contrary to popular belief , magnetic monopoles exist and are easy to
- make . Take a Steel hemisphere and cut a concentric hemisphere cut of the
- middle , now magnetize the hemisphere such that the domains of the object
- are aligned with the north (south) pole pointing outwards. Now stick two of
- the hemispheres together forming a sphere (glue strong enough to resist
- the magnetic repulsion of the hemispheres is required) you now have your
- magnetic monopole :-) , since any observer will see the object having a north
- pole only (unless they cut it open).
- Of course the configuration is unstable and the domains will slowly try
- to rearrange themselves to a more stable state. And the magnetic force still
- decays like a dipole. Such objects might to useful as frictionless bearings.
-
- Barry Adams
-
-
-
-
-
-