“If you want to find the secrets of the universe, think in terms of energy, frequency and vibration.” Nikola Tesla.
Spider webs are finely-tuned instruments and the information sent along the silken strands is controlled by adjusting tension and stiffness, very much like when we tune a guitar or violin.
Spider silk transmits vibrations across a wide range of frequencies. Spiders will pluck the threads of their web, like a guitar string, and the resulting sound carries information about prey, mates, and even the structural integrity of a web. Spiders have poor eyesight so they rely on the vibration of the silk in their web for sensory information.
Things aren't much different for us humans. Our sense of touch is very similar to the way we hear.
The timing and frequency of vibrations produced in the skin when exploring surfaces play an important role in how humans use the sense of touch to gather information, drawing a strong analogy to the auditory system.
Imagine you get out of bed at night and feel the wall for the light switch. You slide your hand along the wall, maybe feel the doorframe and then the rougher wall surface. Eventually, you find the plastic feel of the switch. During this process, you build up a picture in your mind of the wall's surface and it enables you to make a better guess about where the switch is.
Using our hands like this enables us to use our sense of touch to gather information about the objects and surfaces around us.
Our skin is also highly sensitive to vibrations, and these vibrations produce corresponding oscillations in the nerves which carry information from the receptors to the brain. The precise timing and frequency of these neural responses convey specific messages about texture to the brain, much like the frequency of vibrations on the eardrum conveys information about sound.
"There is deep wisdom within our very flesh, if we can only come to our senses and feel it." Elizabeth A. Behnke.