Some insects can use their antennae to detect sound.
Sounds are caused by vibrational energy.
Some insects can use their antennae to detect vibrational energy.
Some insects can use their antennae to detect

1. chemicals
2. scattered light
3. an area swollen with pus
4. bending light rays
5. vibrational energy
6. heat or cold
7. cloudy and rainy weather
8. that material's properties