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A story on social media claims that the African-American boxer Jack Johnson invented the wrench while in prison, and the wrench was named "monkey wrench" as a racial slur. However, both the first patent for a monkey wrench and the name predate Johnson's birth. Johnson did, however, receive a patent for improvements to it. [14] [15]
Hammer and Nails (1977) by Hans Godo Frabel.A "glass hammer" is a highly impractical object which an apprentice might be sent to fetch as part of a fool's errand. A fool's errand prank is a type of practical joke where a newcomer to a group, typically in a workplace context, is given an impossible or nonsensical task by older or more experienced members of the group.
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You are free: to share – to copy, distribute and transmit the work; to remix – to adapt the work; Under the following conditions: attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made.
English: Illustration of a left-handed, clockwise circularly polarized wave as defined from the point of view of the receiver. It would be considered right-handed if defined from the point of view of the source. Refer to Circular polarization Handedness conventions for clarification. Observe that the helix forms a left-handed screw.
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