Gravitational wave spectrum
10−18 Hz← log scale, 29 decades →1011 Hz
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Electromagnetic spectrum
103 Hz← log scale, 21 decades →1024 Hz
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LIGO / gravitational waves
Full spectrum: ~29 decades
LIGO sensitive: ~10 – 10⁴ Hz
≈ 3 of those 29 decades
Human eye / electromagnetic
Full spectrum: ~21 decades
Visible: ~4–7 × 10¹⁴ Hz
< 1 of those 21 decades