The resonant world
Everything that moves makes a frequency, and everything alive makes many. From an elephant's infrasound to a bat's ultrasound to the quiet orchestra inside your own body, it is all one continuous field of vibration — and you are woven into it. Here is some of what it sounds like.
Frequencies in nature
Move around the wheel, from the planet's slow pulse to a mouse's silent song. Most of this soundscape — whale to bat — plays entirely outside human hearing; where it falls within, you can hear it.
7.83 Hz – 33 Hz · Electromagnetic
The Earth hums. In the cavity between the ground and the ionosphere, lightning strikes ring a standing electromagnetic wave — the Schumann resonance, fundamental ≈ 7.83 Hz, with overtones near 14, 20, 26 and 33 Hz. It is the same range as the brain's alpha rhythm, the pace of a calm, open mind. We are born inside this field and carry its tempo.
10 Hz – 40 Hz · Acoustic
The largest animal that has ever lived sings around 10–40 Hz — among the lowest, loudest voices on the planet, carrying across whole ocean basins. A blue whale in one sea can be heard by another an ocean away.
14 Hz – 24 Hz · Acoustic
An elephant's rumble falls around 14–24 Hz — below hearing, felt in the chest and the ground. These infrasonic calls travel for kilometres, letting herds speak to one another across a horizon, through the soles of their feet.
25 Hz – 150 Hz · Acoustic
A cat's purr lives around 25–150 Hz, strongest near 25 and 50 Hz — the same low band that some researchers and sound-therapy writers link to easing pain and bone strength. That link is their claim, not settled medicine. Either way, a cat carries its own low-frequency instrument, and lends it to anyone it curls up on.
85 Hz – 255 Hz · Acoustic
Your speaking voice vibrates around 85–180 Hz (lower voices) and 165–255 Hz (higher voices) — the true rate of your vocal folds opening and closing. Everything above it, all the colour and character people recognize as you, rides on overtones of that one fundamental.
200 Hz – 800 Hz · Acoustic
The whine is the wingbeat itself, around 200–800 Hz. When a male and female meet, they tune their wingbeats toward a shared harmonic — a tiny duet sung with the whole body, in flight.
1 kHz – 9 kHz · Acoustic
Most birdsong sings between 1 and 9 kHz, right where many birds hear best. A few reach past the ceiling of human hearing — so even a loud dawn chorus is only the part of the song we're built to catch.
7 kHz – 130 kHz · Acoustic
Dolphins whistle to one another around 7–15 kHz and click far higher — 40 to 130 kHz — to echolocate, painting their world in returning sound. They don't just hear their surroundings; they see them in acoustic relief.
11 kHz – 212 kHz · Acoustic
A bat's cries run from 11 kHz to over 200 kHz, most around 20–60 kHz — a whole bright soundscape above our hearing. It flies through total darkness reading the echoes of its own voice off a moth's wing.
30 kHz – 110 kHz · Acoustic
Mice court and comfort each other in ultrasonic song around 30–110 kHz — elaborate, structured phrases we never hear. A quiet room can be full of music pitched just beyond us.
Frequencies of the human body
You are not one note but a whole ensemble — electric rhythms in the brain and heart, mechanical resonances in bone and tissue, the sounds you make and the ones you emit without knowing. Explore the figure, and meet yourself as a set of frequencies.
You are an orchestra of frequencies.
Every part of you keeps a rhythm — the electric weather of the brain, the four-fold beat of the heart, the slow tide of breath, the hum of a steady hand. Touch any part of the figure, or a name below, to hear what it keeps time to. None of it is still; all of it is singing.
your inner weather
Billions of neurons rise and fall together in rhythm — delta below 4 Hz in deep sleep, theta 4–8 Hz in reverie, alpha 8–13 Hz in calm open awareness, beta 13–30 Hz in focus, gamma above 30 Hz in insight. Your state of mind is literally a frequency, and it shifts as you do. Alpha sits right at the Earth's own ~7.83 Hz pulse.
Newson & Thiagarajan (2019), EEG frequency bands
tuned to stillness
The eye has its own resonances — vision smears under whole-body shaking around 4–20 Hz, and the eyeball itself answers near 60–90 Hz. It's why a resonance you can't consciously feel can still blur the world: your sight is a tuned instrument.
Lange & Coermann; Rasmussen
an ear that sings back
Your inner ear doesn't just listen — it sings. The outer hair cells of the cochlea emit their own faint tones, 500–4,500 Hz, a quiet song the ear projects back into the world. It's so reliable that newborns' hearing is tested by listening for it.
Kemp (1978); Probst et al. (1991)
your signature tone
Your vocal folds open and close 85–255 times a second to make sound — a mechanical vibration you feel in your throat and chest, and the acoustic note others hear as your voice. It is the one frequency you can reach out and touch another person with, directly, across a room.
Titze; Baken & Orlikoff
a field you can feel
The heart keeps four rhythms at once: it beats near 1 Hz, its sounds ring at 20–200 Hz, its electrical signal spans about 0.05–150 Hz, and it throws a real magnetic field — around 50 picotesla — out past the skin. It is the body's strongest field, the one others sense first as your presence.
AHA; Rangayyan; Kligfield et al.; Roth (2024)
the slowest rhythm
Breath is the body's slow wave — about 0.2–0.3 Hz at rest, 12–18 cycles a minute. Slow it on purpose and the heart, the brain and the nervous system fall into step behind it. It is the one rhythm you can take the baton of, and conduct the rest.
Respiratory physiology (clinical norms)
the body's string
The spinal column resonates around 10–12 Hz along its length — the central string of the body's instrument, from which the whole frame hangs and answers. Its own trunk response sits lower, around 4–5 Hz.
Rasmussen; Coermann
where you shake as one
Seated or standing, the whole body has a resonance around 4–6 Hz — the frequency at which you move most as a single mass. Engineers weight vibration-safety standards right here, because this is the band your whole being answers to most strongly.
Griffin, Handbook of Human Vibration; ISO 2631
a steady tremble
Even at rest the hand carries a fine tremor near 8–12 Hz, and resonates as a system from the grip (8–12 Hz) through the wrist (~20 Hz) to the fingers (100–200 Hz). The stillest hand is never truly still — it hums.
Elble & Randall (1976); ISO 5349
the walking rhythm
Walking settles into about 1.7–2 Hz — a hundred-odd steps a minute, the pendulum of the whole body swinging through the world. It's close to the resting heartbeat, and close to the tempo we reach for when we want music to move to.
Tudor-Locke et al. (CADENCE-adults)
You are a field
Step close to someone and you feel it before a word is spoken — presence, a charge in the air, a sense of who they are. That is not imagination. You are a radiant thing, and your field reaches past your skin.
We have caught its edges. The body gives off a real glow of light — ultraweak photon emission, photographed in the dark (Kobayashi and colleagues, 2009), too faint for the eye but unmistakably there. The heart throws a magnetic field, about fifty picotesla, out past the chest. The inner ear sings its own soft tones back into the room. You radiate heat, you radiate sound, you radiate electricity. The aura that sensitives have described for centuries, and that Kilner tried to photograph in 1911, is the lived name for this same luminous edge of what you are.
And because you are a field, you touch other fields. Every living thing near you is radiating too, and all of it overlaps. This is the heart of cymatics: vibration is not something that happens to us. It is what we are, and how we reach one another.
The color of a frequency
Sound and light are both vibration — the same idea, octaves apart. The site tints things by pitch, folding each octave onto one turn of the color wheel. Tune a tone and watch it find its color.
The rhyme is real physics; what some have built on it is belief. Walter Russell took it further — every chemical element a tone, with its own color — in his ten octaves of light. Integrating Light redraws that idea from his charts, as a study from inside his tradition.
Notes an octave apart land on the same hue — the ear hears octaves as "the same"; the eye has no such rule.
This is an artistic mapping, not physics. Sound is a mechanical wave (20 Hz–20 kHz); light is electromagnetic (~400–790 THz) — about forty octaves higher. No pitch truly is a color; we just borrow the octave to turn the color wheel.