Araceae (not to be confused with Arecaceae) is a family of monocots in which the flowers are borne on a spadix, with female flowers at the bottom and male flowers at the top, enclosed in a spathe. It includes the calla[?] and the largest flower in the world, Amorphophallus titanum. The taro (Colocasia esculenta) is also in this family.
... of the gyroscope is supported and amplified by wrist motion.
It takes a while until one finds the "rolling" point, but the gyro will also be accelerated to ...