planet density kg/m = 7,820 planet density g/cm = 9060
etc. Surely those units should be "kilograms per CUBIC metre" and "grams per CUBIC centimetre". May I assume that the "m and the "cm" symbols were supposed to have "cubed" (superscript 3) after each?
He also wrote:
the famous 21.6 cm "water hole" frequency ... in ... searches for signals from other civilizations).
seti frequency water = 7,600 seti wavelength water = 2,340
The units on the frequency of 7600 is missing entirely. Are they hertz "Hz", or kilohertz "kHz", megahertz "MHz", Gigahertz GHz", or what? Similarly, the units on the seti wavelength are missing entirely, What are they? Are they metres, centimetres, or what?
And how are the seti frequency and wavelength related to the 21.6 cm frequency referred to previously? Surely the seti wavelength given as "2340" can't correspond to the 21.6 cm wavelength no matter what other "metric" units are used for the "2340" number.
Regards, Bill Hooper Fernandina Beach, Florida, USA ======================== SIMPLIFICATION begins with SI ========================
