Hello Wagner. Take a look at : www.magnetic-shield.com/labkit.html And if you build the "The world's first perpetual motion machine!!!" send us a picture. Ricardo S. Imbiriba :-) ----- Original Message ----- From: Nick Taylor To: Sent: Thursday, September 23, 1999 2:17 PM Subject: Re: [OT] Magnetic Field > Congratulations!!!! The world's first perpetual motion machine!!! > And all us PIC Listers will be able to say we knew him back in the > last century! > > Wagner Lipnharski wrote: > > > > What is the most positive way to block magnetic field using a 5mm *any > > material* board? > > Take a look at the picture and tell me why it doesn't work. > > http://www.ustr.net/jpg/moto1.jpg