EMS SANDBOX · TIER I
◈ AUDIO 40% CLICK ENABLE FIRST Not the actual frequency. Nothing on this spectrum is audible. This is what it would feel like if it were.
THE ELECTROMAGNETIC SPECTRUM · DRAG CURSOR TO EXPLORE · SOUND FOLLOWS
RADIO MICROWAVE INFRARED VISIBLE UV X-RAY GAMMA
BAND
—
FREQUENCY
—
WAVELENGTH
—
PHOTON ENERGY
—
Hover the spectrum to explore
Right now, passing through your body: WiFi · Bluetooth · 5G · AM/FM Radio
On your skin, invisible: Infrared heat radiation · Ultraviolet from the Sun
Blocked above you by atmosphere: X-rays · Gamma bursts from dying stars

You can see almost none of it.
The visible band is 0.042% of the full spectrum.
Drag the bar. Listen to what you've been missing.
SPEED OF LIGHT
299,792,458 m/s
All electromagnetic radiation.
In vacuum. Always.
FUNDAMENTAL RELATION
λ = c / f
Wavelength = Speed of Light ÷ Frequency.
They are inversely proportional.
SPAN OF THE SPECTRUM
10²⁴ Hz
From ELF radio waves (3 Hz) to
gamma rays (3×10²⁴ Hz). 24 decades.
THE SEVEN BANDS · SELECT TO EXPLORE
— ELECTRIC FIELD (E)
— MAGNETIC FIELD (B)
PROPAGATION DIRECTION →
WAVE PROPERTIES
FREQUENCY
3.0
AMPLITUDE
0.70
POLARIZATION
0°
λ = 2.09  |  E ∝ f²=9.0
Polarization: 0° — Vertical
MODULATION
Pure carrier wave. Constant amplitude. Constant frequency. The baseline signal.
INTERFERENCE
Add a second wave to observe interference. Constructive where peaks align. Destructive where they oppose. The physics behind noise-canceling headphones.
WHAT YOU'RE SEEING
E field (blue) — electric. Drives charge. What your eyes detect as light.

B field (orange) — magnetic. Always perpendicular to E. Always perpendicular to the direction of travel.

They oscillate in phase. Together they carry energy through space at c.
ELECTROMAGNETIC WAVE · 3D · DRAG TO ROTATE
MEDIUM: VACUUM
WAVE CONTROLS
FREQUENCY
4.0
AMPLITUDE
0.60
POLARIZE
0°
TRANSMISSION MEDIUM
No resistance. Maximum speed. Zero attenuation. Infinite carry distance.
MODULATION
LIVE DATA
POWER
—
WAVELENGTH
—
PERIOD
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CARRY DIST
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PENETRATION
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ATTENUATION
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