richter scale, right? if you do something that cool in life, your grave stone is likely to be this cool after life. charles francis richter, he made the scale that determined the earthquakes. and this japanese researcher, mr. fujita, is the f in the ef-scale. when the tornado touches down, that is rated on the fujita scale. it gives us an idea of how bad the disaster is, one versus five, how seriously we need to react, and how to rank that disaster against the others. i always thought the granddaddy of the scales was this one, this is the nuclear disaster scale. when this scale is in the news, something is very wrong, going from one, all the way up to 7, which is a major accident. that is the red part at the top. in the history of this scale