However, the effect that global warming will cause on earth are extremely serious. There are many effects that will happen in the future if global warming continues. That includes polar ice caps melting, economic consequences, warmer waters and more hurricanes, spread of diseases and earthquake.
Term RMS refers to the mathematical Root Mean Square which is an average of peaks and valleys of a materials surface profile. Ra stands for roughness average. Ra is a average of only peaks; therefore, to get an Ra, multiple your 3.2 to 6.3 by 2 to get 6.4 to 12.4 Ra. AF Kenton.
R.M.S., or Root Mean Square. Basically, its mathematics, and the terminology RMS is very inaccurate. Back in the 70's, the F.T.C. (Federal Trade Comission) wanted to level the playing field and come up with a standard that everyone would somewhat understand when it came to rating stereo's and the likes power output.