By the mid-1960s unilateral deterrence gave way to 'mutual deterrence', a situation of strategic stalemate. The superpowers would refrain from attacking each other because of the certainty of mutual assured destruction, better known as MAD. This theory is still a major part of the defense policies of the United States and Russia. This led to the foundation of the nuclear triad, or use of three different types of delivery systems (bombers, missiles, and submarines), to assure that a second-strike capability existed able to cause massive destruction to the attacking nation.
What costs do they measure? The difference between cost per thousand (CPM) and cost per rating point (CPRP) is that CPM measures the dollar cost of reaching 1,000 members of the media vehicle's audience. CPRP is a relative measure of the efficiency of a media vehicle to a firm's target market.
In the CGS measurement system, this proportionality constant of absolute viscosity is given the name âpoiseâ (P) named after Jean Louis Marie Poiseuille (pronounced Pwa-selli). It is more commonly expressed in ASTM standards as centipoise (abbreviated cP) and represents 1/100 of a poise. The centipoise is most commonly used because water has a viscosity of 1.0020 cP (at 20 Â°C) and, as with other physical measurements, the base fluid to which all others are compared is water.