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2. Body wave magnitude - Wikipedia

   en.wikipedia.org/wiki/Body_wave_magnitude

   The original "body-wave magnitude" – mB or m B (uppercase "B") – was developed by Gutenberg (1945b, 1945c) and Gutenberg & Richter (1956) [2] to overcome the distance and magnitude limitations of the M L scale inherent in the use of surface waves. mB is based on the P- and S-waves, measured over a longer period, and does not saturate until ...

3. Orders of magnitude (length) - Wikipedia

   en.wikipedia.org/wiki/Orders_of_magnitude_(length)

   Total length of DNA molecules in all cells of an adult human body [39] 21.49 Tm Distance of the Voyager 1 spacecraft from Sun (as of Oct 2018), the farthest man-made object so far [40] 62.03 Tm Estimated radius of the event horizon of the supermassive black hole in NGC 4889, the largest-known black hole to date 10 14: 100 Tm: 180 Tm

4. Seismic magnitude scales - Wikipedia

   en.wikipedia.org/wiki/Seismic_magnitude_scales

   The original "body-wave magnitude" – mB or m B (uppercase "B") – was developed by Gutenberg 1945c and Gutenberg & Richter 1956 [25] to overcome the distance and magnitude limitations of the M L scale inherent in the use of surface waves. mB is based on the P and S waves, measured over a longer period, and does not saturate until around M 8.

5. Far infrared - Wikipedia

   en.wikipedia.org/wiki/Far_infrared

   Far infrared (FIR) or long wave refers to a specific range within the infrared spectrum of electromagnetic radiation. It encompasses radiation with wavelengths ranging from 15 μm ( micrometers ) to 1 mm, which corresponds to a frequency range of approximately 20 THz to 300 GHz.

6. Electromagnetic spectrum - Wikipedia

   en.wikipedia.org/wiki/Electromagnetic_spectrum

   A diagram of the electromagnetic spectrum, showing various properties across the range of frequencies and wavelengths. The electromagnetic spectrum is the full range of electromagnetic radiation, organized by frequency or wavelength.

7. Sears–Haack body - Wikipedia

   en.wikipedia.org/wiki/Sears–Haack_body

   The Sears–Haack body is the shape with the lowest theoretical wave drag in supersonic flow, for a slender solid body of revolution with a given body length and volume. The mathematical derivation assumes small-disturbance (linearized) supersonic flow, which is governed by the Prandtl–Glauert equation .