Force Ten (song) worked with Rush on their song "Tom Sawyer", had sent Neil Peart some lyrics for the song, and Peart would add more verses to it. Lyrically, the song describes the "storms of life," making a reference to a very high level of the Beaufort scale ("force ten" is defined as a 'storm', being near the scale's maximum of 12) as an analogy, according to the book "Rush and Philosophy: Heart and Mind United". Musically, "Force Ten" is composed in A minor, with changes into A major scale occurring in the song. The song is set in common time at a
Fujita scale what was somewhat ambiguous. It also is thought to provide a much better estimate for wind speeds, and sets no upper limit on the wind speeds for the strongest level, EF5. Several countries continue to use the original Fujita Scale. Environment Canada has begun using the Enhanced Fujita scale in Canada as of April 18, 2013. Fujita scale The Fujita scale (F-Scale), or Fujita–Pearson scale (FPP scale), is a scale for rating tornado intensity, based primarily on the damage tornadoes inflict on human-built structures and vegetation. The official Fujita scale category is determined by meteorologists and engineers after a ground