"[In plotting earthquake measurements] the range between the largest and smallest magnitudes seemed unmanageably large. Dr. Beno Gutenberg then made the natural suggestion to plot the amplitudes logarithmically." Charles Richter

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Did you know? Mass of the Apollo program Lunar Excursion Module moon lander (15,200 kg) is 400 x Mass of an Emu (38 kg)

Land used for permanent crops in Andorra

Land used for permanent crops in Andorra (2018) (0 m km^2)

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