Assertion: dragonfly | /r/CapableOf | flap its wings
Facets:
value: slower than many other insects
type: OTHER
value: at about 30 beats per second
type: TEMPORAL
value: during the flight
type: TEMPORAL
value: rapidly
type: MANNER
value: to warm up their bodies
type: PURPOSE
Source sentences:
text: A bee flaps its wings about 300 times per second, but a dragonfly flaps its wings at only about 30 beats per second.
text: Dragonflies will rapidly flap their wings to warm up their bodies.
text: They can flap each wing up and down, and rotate their wings forward and back on an axis.
text: A dragonfly only flaps its wings at about 30 beats per second, while the bee flaps its wings at about 300 beats per second.
text: What is mind blowing is the fact that it can do this while flapping its wings a mere 30 times a minute while mosquitoes and houseflies need to flap their wings 600 and 1000 times a minute respectively.
text: About 30 times the dragonfly flaps its wings during the flight.
text: A bee flaps its wings about 300 times per second, but a dragonfly flaps its wings at only about 30 beats per second.
text: Despite the fact that dragonflies flap their wings slower than many other insects (about 30 strokes per second), they fly very fast and change their direction of movement with lightning speed, so their victims have almost no chance of escape from them.
text: Dragonflies, unlike bees, are only able to flap their wings 30 times each second.
text: Dragonflies flap and pitch their wings at a rate of about 40 Hz, creating whirlwinds as illustrated in figure 2