Spiderweb

Does this part of the spiderweb really show natural straight lines? In the upper right corner there seem to be some. Just as long as they are not touched by hand or wind. Then they sag, undulate, change form.

The spider effectively utilizes the wind to carry its initial adhesive thread. With some luck the silk is released from its spinners and carried by the wind to a suitable adherable surface. When it sticks to a surface the spider will carefully walk over the thread and strengthen it with a second thread. This process is repeated until the primary thread is strong enough to support the rest of the netting.