Spider webs

Spider webs use electricity to catch insects

According to scientific results, a spider webs and positively loaded subjects, such as insects flying by, attract each other. After all, moving wings of insects not simply hold the owners in air, they develop electricity. Bees can develop electric charges up to 200 volts, which is quite enough to separate pollen from flower stamens. Within the research Victor Manuel Ortega-Jimenez and Robert Dudley studied sensitivity of a spider webs to electrostatic charges of insects and water drops.   In a basis of this work was defined earlier research as a result of which was necessary extent of deformation of a web from hit of victims in it. We know that for victim capture the spider webs is capable to change the form. But how? The researchers collected all web in the territory of a university campus in Berkeley. Scientists carried out a series of experiments to check reaction of a web to subjects flying by, more exact – a drop of water. As scientists noted, the threads of a web located radically and especially on a spirals, were quickly attracted to the electrified bodies.   In check experiments in which were used insects and drop of water without electric charges, it was not observed such change of a form of a web.  Thus that deformation of a spider web which was observed when carrying out experiment was considerable. On length it made nearly a half of length of insects. The experiments obviously showed that positively loaded insects cause a fast attraction of threads of a web of spiders. And, as scientists noted, it indirectly confirms the hypothesis made before that static charges which insects possess, increase ability of a spider webs of spiders to take production. If to speak more simple language, now it became even more terrible to present itself the victim of a spider, than earlier.

source:www.theatlantic.com