Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Experimental setup: the traction force of an actively walking beetle, being attracted by a small light, was recorded using a highly sensitive force transducer. AD, transducer amplifier and AD converter; PC, laptop for data acquisition; F, highly sensitive force transducer; H, hair; W, beeswax; B, beetle; S, plant surface; L, light source; ST, stage. (Online version in colour.)
