#cal

From here, it becomes an engineering problem; the engineer considers the ground motion that will occur and evaluates the requirements of the proposed structure in the light of the local foundation conditions. ↗

— Charles Francis Richter

#conditions #considers #engineer #engineering #foundation

I repeatedly have to correct this belief. In a sense, magnitude involves steps of 10 because every increase of one magnitude represents a tenfold amplification of the ground motion. But there is no 'scale of 10' in the sense of an upper limit. ↗

— Charles Francis Richter

#because #belief #correct #every #ground

If one introduces the concept of energy of an earthquake then that is a theoretically derived quantity. ↗

— Charles Francis Richter

#derived #earthquake #energy #introduces #quantity

If the assumptions used in calculating energy are changed, then this seriously affects the final result, even though the same body of data might be used. ↗

— Charles Francis Richter

#assumptions #body #calculating #changed #data

Intensity like signal strength will generally fall off with distance from the source, although it also depends on the local conditions and the pathway from the source to the point. ↗

— Charles Francis Richter

#although #conditions #depends #distance #fall

There is another common misapprehension that the magnitude scale is itself some kind of instrument or apparatus. Visitors will frequently ask to 'see the scale.' ↗

— Charles Francis Richter

#apparatus #ask #common #frequently #instrument

This is very similar to astronomy where different magnitudes are assigned to the brightness of an astronomical object, depending on the range of wavelengths being measured. ↗

— Charles Francis Richter

#astronomical #astronomy #being #brightness #depending

What emerged, of course, was that the magnitude scale presupposed that all earthquakes were alike except for a constant scaling factor. And this proved to be closer to the truth than we expected. ↗

— Charles Francis Richter

#closer #constant #course #earthquakes #emerged

I have had an experience which might perhaps be described as being shot down. At the same time, I call shot down only when one falls down. Today I got into trouble but I escaped with a whole skin. ↗

— Manfred von Richthofen

#call #described #down #escaped #experience

I think church and state should remain entirely separate at all costs, and that the decision of religious marriage should be of each faith to debate and decide free of political influence. ↗

— Adam Rickitt

#costs #debate #decide #decision #each