they just work they just work,work,work
the work a machine does is the work outputwhat it takes to do the work is the work inputSources;The_work_that_the_simple_machine_does_is_called_the_work
the work a machine does is the work output what it takes to do the work is the work input
The work done by a machine is called work output
work output
A backstaff is a an early navigational instrument for measuring the altitude of the sun and hence calculating latitude.
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"Captain John Davis invented a version of the backstaff in 1594"
John Davis invented the backstaff and the double quadrant. He is more famous for the double quadrant, which people actually called the Davis quadrant. However, he is more famously known for being an English explorer.
An Astrolabe. See the website www.astrolabe.org,or Wikipedia, or use Google books for a public domain encyclopedia. I own an old encyclopedia britannica, the 1903 edition and love it for answering questions such as this, or those related to woodworking, carpentry, masonry, or industrial machinery; e.g. what does an automatic pattern knitting machine or a jacquard loom look like?.historically several instruments were used to measure this angle, they include the quadrant, cross staff, the backstaff and the mariner's astrolabe.
They got their education by secretly learning it if their master didn't allowed because it was illegal. Sometimes, their masters tought the slave even though it was against the law. By secretly learning it, they could learn it off another slave or steal a book and educate themselves.
they just work they just work,work,work
the work a machine does is the work outputwhat it takes to do the work is the work inputSources;The_work_that_the_simple_machine_does_is_called_the_work
the work a machine does is the work output what it takes to do the work is the work input
Work , Work , Work , Work , Work , Work ! They do what You lazy Americans don't . Mexicans work hard . They do it all !
The verb in "you work late" is "work."
A calendar at your work, for your work, that has your work schedule on it, etc.