How do spiders spin webs?
Spider's Nightly Blueprint
How do spiders spin webs?

You've walked face-first into a spiderweb. Again. How does a spider even DO that — build a perfectly geometric trap overnight, out of thin air?
First, the spider has to GET to the other side. She climbs to a high point, lifts her abdomen, and shoots out a single silk thread. The breeze catches it like a kite string, and when the far end sticks to a branch across the gap, she's built herself a bridge. She walks across, trailing more silk beneath her to make it strong.
