Assertion: hummingbird's wing | /r/CapableOf | make a figure 8motion
Facets:
Source sentences:
text: The birds produced 75% of their weight support during the downstroke and 25% during the upstroke, with the wings making a "figure 8" motion.
text: #3: The hummingbird’s wings work in figure 8 movements giving them the ability to fly backwards, forwards, suspend themselves in mid-air and fly upside down.
text: Their wings make a figure of eight movement, and beat remarkably quickly (usually between 10 to 80 beats per second, with some species having been recorded at 200 beats per second).
text: The birds produced 75% of their weight support during the downstroke and 25% during the upstroke, with the wings making a "figure 8" motion.