How do scientists film an insect flying too fast to follow?
A fly changes direction faster than an observer can follow by eye. Researchers reconstructed blowfly flights using one high-speed camera and mirrors that supplied several views. Explore how those images become a three-dimensional path, and what a laboratory flight can reveal about an animal's usual performance.
Questions you could explore
- Why are several camera views more informative than a single view of a flight?
- How do frame timing and spatial calibration affect an estimated speed?
- What might an enclosed arena change about a fly’s behavior?
Start reading
- Bomphrey, Walker, and Taylor / PLOS ONEThe Typical Flight Performance of Blowflies: Measuring the Normal Performance Envelope of Calliphora vicina Using a Novel Corner-Cube Arena
The researchers explain how they tracked blowflies in three dimensions using a mirrored arena. The method makes the work behind a speed measurement visible.
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