Stalls

Degrees of freedom: 2*

In this trick, the poi moves in a half circle within the X-Y plane, so there are 2 degrees of freedom

*Assuming poi is a point mass. For more information on planes and this assumption, see the technical info page here

Expected and observed frequencies:

One fundamental frequency is observed at ~½ the normal spinning rate, so ~.5 Hz. This can be attributed to the fact hat only ½ the circle is traversed before stalling

Equations to characterize trick:

• X = t
• Y = -t⁴
• Z = 0