Normally, levels of AST in the blood are low. Very high levels of AST (more than 10 times normal) are usually due to acute hepatitis, sometimes due to a viral infection. With acute hepatitis, AST levels usually stay high for about 1-2 months but can take as long as 3-6 months to return to normal.
A Baltimore mechanic named Charles Moncky invented the monkey wrench around 1858. The tool was originally named by using a âpurposeful misspellingâ of its inventorâs name, according to the Ferris State University Jim Crow Museum.
A wrench is a tool-the English call it a spanner-that is usually operated by hand, and is made for tightening or loosening bolts, nuts or anything that needs to turn. Solymon Merrick patented the first wrench in 1835.The physics of a wrench are that the tool works as lever. There are notches at the mouth for gripping.The wrench is pulled at a right angle to the axes of the lever-action and the bolt or nut.is design was then patented and Walworth manufactured the wrench. Stillson was paid about $80,000 in royalties during his lifetime. Jack Johnson. The world's first African American heavyweight champion patented a wrench (U.S.patent#1,413,121) on April the 18th, 1922.