Rake-and-scrape the hand saw became a constant playing style that is known as traditional Rake and Scrape, and the combination of these instruments used to produce this sound has without any doubt originated in the Bahamas. Quote from Smithsonian Folkways recordings on the origin of Rake and scrape music in the Bahamas states "The rake and scrape band hails back to the 1800s, when the Africans who were brought to the Bahamas looked to make music on whatever was available to them: a carpenter's saw, pork barrels with goat or sheep skin to make a drum, and the accordion which might
Pounds per square inch be added to any pressure reading made in air at sea level. The converse is pounds per square inch gauge (psig), indicating that the pressure is relative to atmospheric pressure. For example, a bicycle tire pumped up to 65 psig in a local atmospheric pressure at sea level (14.7 psia) will have a pressure of 79.7 psia (14.7 psi + 65 psi). When gauge pressure is referenced to something other than ambient atmospheric pressure, then the units would be pounds per square inch differential (psid). The kilopound per square inch (ksi) is a scaled unit derived from psi, equivalent to