Earthquake Magnitude Scale Magnitude Earthquake Effects Estimated Number Each Year 2.5 or less Usually not felt, but can be recorded by seismograph. Millions 2.5 to 5.4 Often felt, but only causes ...

(Gravity is so weak as to be entirely irrelevant on these scales.) The fact that it is insignificant on larger scales is the paradoxical effect of an odd strong-force quirk. The photon, which ...

This means that the pH values of strong acids are lower than that of weak acids, which explains why the rate of reaction of strong acids with substances (such as metals, metal carbonates etc ...