11_4cont_05.SPE

	Slow moving waves appear to pass through white to red and yellow to purple boxes smoothly.
Fig.1 Location of boxes for wave speed determination.

	Distance between yellow and purple is 2.582. The distance between red and white is 2.265.
Fig.2 Distances between boxes.

	Yellow->Purple 1.25 s V(y>p)=2.06 mm/sec. White -> Red 1.25 s V(w>r)= 1.8 mm/sec.
Fig.3 Velocity measurement.

	T(y->p) 1.35 s V(y>p) 1.91 mm/sec T(w->r) 1.3 s V(w->r) 1.74 mm/sec
Fig.4 Second Velocity measure.

	The spiral reenters on the order of 1.4 mm (its a two armed spiral, with both arms rotating in oposite directions). This is an example of 'micro reentry.'
Fig.5 Measure of small spiral in upper left corner.

	The period of the spiral is hard to estimate but is close to 1.2 seconds. It is hard to estimate as there are several broken wavefronts near the spiral. I should try to get a better measure.
Fig.6 Period of micro spiral measured by boxes near the spiral.

	The boxes are sometimes hard to see. There is a grey box in the upper right left corner.
Fig.7 location of boxes for spiral wave measure.