rattlebacks造句

Additional examinations of rattlebacks were published in 1909 and 1918, and by the 1950s and 1970s, several more examinations were made.
Some rattlebacks, however, exhibit " unstable behavior " when spun in either direction, and incur several successive spin reversals per spin.
This explains why, due to friction, most rattlebacks appear to exhibit spin-reversal motion only when spun in the pitching-unstable direction, also known as the strong reversal direction.
It's difficult to find rattlebacks in a sentence. 用rattlebacks造句挺难的