Non-fiction novels can have both more or less words but most publishable novels for the adult market, again, should be at least 60,000 words. Young adult and children's market novels are considerably shorter. They run on average from 45,000 to 75,000 words.
a small downward deflection in the arterial pulse or pressure contour immediately following the closure of the semilunar valves, sometimes used as a marker for the end of systole or the ejection period. Called also dicrotic notch.
Rain, ice crystals, snow & fog will absorb some of the radio waves, they can also scatter the waves. This causes attenuation of the signal (drop in the strength of the signal). The higher the frequency, the greater the attenuation. Lower frequencies have longer wavelengths and are less likely to be affected.