STEM与日常科技·英语30篇（5）

21 / 30

STEM轻科普：蜜蜂如何探测花朵周围的电场（2026-D006）

Honeybees carry a slight positive charge as they fly due to friction with air particles.
Flowers often hold a weak negative charge, creating detectable electric fields near their petals.
Bees sense these fields using mechanosensory hairs that bend in response to electrostatic forces.
This ability helps them distinguish recently visited blooms, which temporarily lose their charge after pollination.
Experiments show bees choose charged artificial flowers over uncharged ones, even when scent is identical.
Electric field detection works alongside color and scent, forming a multi-sensory foraging map.
Researchers used laser vibrometry to measure hair deflection during controlled voltage exposures.
Understanding this sense aids development of bio-inspired sensors for precision agriculture.
Climate change may alter atmospheric electricity, potentially disrupting this ancient plant-insect dialogue.
It reveals how invisible physical forces shape ecological relationships we rarely consider.