Block and tackle sheave to change the direction of the pulling line, which increases friction losses without improving the velocity ratio. Situations in which reeving to disadvantage may be more desirable include lifting from a fixed point overhead; the additional pulley allows pulling downwards instead of upwards so that the weight of the lifter can offset the weight of the load. The formula used to find the effort required to raise a given weight using a block and fall: where formula_3 is the force applied to the hauling part of the line (the input force), formula_4 is the weight of the load (the
What a Terrible World, What a Beautiful World What a Terrible World, What a Beautiful World What a Terrible World, What a Beautiful World is the seventh studio album from The Decemberists, released on January 20, 2015. The album's title comes from a line in the song "12/17/12", a reference to the date of Barack Obama's speech in response to the Sandy Hook Elementary School shooting and lead singer Colin Meloy's conflicting feelings about the shooting and his happy personal life. "What a Terrible World, What a Beautiful World" received mostly positive reviews. It currently has a metascore of 77 and user score of 8.1 from Metacritic. "The