ON the music festival circuit, now in full swing, head-to-toe fringe is encouraged (along with crochet and lace and teeny shorts, if the photos from Coachella are any indication).
To reduce the impact of swing on heading estimation, we use the second-order Butterworth digital low-pass filter to conduct heading correction.
With some colour patterns like their relatives the woodpeckers, barbets have similar displays, such as head swinging, head bobbing, bill pointing, and others.
We can imagine it now: Chris Martin's giant swinging head on the JumboTron screens and Brian Eno's voice fatefully intoning, "You are getting verrrry sleeeeepy..."...
"Many of the gestures indicate apprehensive and displacement behaviour – trunk twisting, trunk curled under, face touching, foot swinging, head-shaking, ear-cocking, displacement feeding, amongst others". Zimparks were approached but did not make a comment.
The swinging head motor provides a range of (-,90^{circ }) to (120^{circ }) and the pitch motor can provide a pitch angle from (-,80^{circ }) to (80^{circ }).
If you will mostly be turning spindles, then there's perhaps no need for a swinging head model, but rigidity of the bed and good between-centres capacity are important features.
Hard slamming can hurt, so bend your knees, twitch your head backwards, swing your head down to waist height and slow down your head (stopping it instantly can hurt).
The Sea Queen swung round, headed out to -- well, not exactly sea, but close enough for our purposes.
