Figure 1a shows the pulse of air emerging from the nozzle. In Figure 1b the pulse has moved away from the nozzle. Note the large velocity vectors associated with the vortices accompanying the SynJet formation. In Figure 1c the pulse has moved further away, and the entrained air can be seen behind it in the form of the large velocity vectors all pointing in the direction of the pulse. In Figure 1d the tail of the pulse is seen. Finally in Figure 1e the pulse has almost fully left the frame, and the air can be seen recharging the nozzle in preparation for the next pulse.