Kyle R. Mcallister wrote: > ----- Original Message ----- > From: "Harry Veeder" <[EMAIL PROTECTED]> > To: <vortex-l@eskimo.com> > Sent: Saturday, February 17, 2007 1:56 AM > Subject: Re: [Vo]: Lifters > > >>> I did it with a balance beam and a pointer, and saw nothing significant. >>> Also did it set up as a torsion arm. >> >> How did you calibrate your scale? > > You don't really "calibrate" a simple balance beam or torsion arm. There is > no scale, just beam, pointer, and a ruler positioned next to the pointer. A > laser pointer is unnecessary and inacurate as well... consider the spot size > of a red laser pointer compared the the thickness of a sewing needle. You > just make it long enough and rigid enough that if you drop a bit of lint on > one end of it, the pointer at the other end will give a visible indication > of movement.
ok. > An unshielded, open-air lifter will move a long balance beam undeniably. > Very easy to see. The torsion arm is even better, you can make the thing > spin complete revolutions. When the shield is added, nothing happens. So the lifter was oriented so it would move horizontally rather than vertically ? > I know it is going to be suggested that the added weight of the shields > increased the weight and swamped the "effect". This thought was not lost on > my, so I hung the shield just below the test Lifter, with the lifter exposed > to air, to see if it could visibly push the added mass of the shields. It > did with little difficulty. When the lifter was then placed within the > shield, no thrust. Very good. Did both tests rely on horizontal motion? > I suggest, if anyone else wishes to try this, to run one lead wire up from > the floor to the lifter, and one down from the ceiling to it, and make the > wires meet close to the pivot or axis of the balance beam. Otherwise, the > lead wires will give artifacts. > > --Kyle > harry
