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A backstaff is a navigational instrument used to measure the altitude of the sun. It consists of a graduated arc and two vanes, one of which is moved to block the sun's image as it is reflected onto a mirror. By aligning the shadow of the vane with the horizon, sailors can determine the sun's altitude and calculate their latitude.
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What are the types of mechanical work?
The types of mechanical work include static work, dynamic work, and intensive work. Static work refers to work done without motion, dynamic work involves movement, and intensive work focuses on the internal energy changes within a system.
How does input work and out put work affect the efficiency of a simple machine?
Input work is the work done on a machine, while output work is the work done by the machine. Efficiency of a simple machine is calculated as the ratio of output work to input work. The efficiency of a simple machine is high when the output work is close to the input work, indicating that the machine is converting most of the input work into useful output work.
What formula relates work and power?
The formula that relates work and power is: Power = Work / Time. Power is the rate at which work is done, which is the amount of work done divided by the time it takes to do that work.
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
What is the formula to finding the work output of efficiency?
The formula to find the work output of efficiency is: Work output = Efficiency x Input work. Efficiency is a ratio of output work to input work, so multiplying this ratio by the input work gives the work output.
What is a backstaff?
A backstaff is a an early navigational instrument for measuring the altitude of the sun and hence calculating latitude.
How do you determine longitude and latitude with a chronometer and backstaff?
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Who used the backstaff?
The backstaff, an early navigation instrument, was primarily used by sailors and navigators during the Age of Discovery in the 16th and 17th centuries. It allowed them to measure the altitude of the sun to determine latitude while avoiding direct sunlight, which could damage the eyes. The backstaff was an improvement over the astrolabe and was particularly popular among English mariners. It was eventually replaced by more advanced instruments like the sextant.
Who invented the back staff?
"Captain John Davis invented a version of the backstaff in 1594"
Is the backstaff still used today?
The backstaff is largely obsolete in modern navigation, having been replaced by more accurate instruments like the sextant and advanced electronic systems such as GPS. However, it may still be used in specific educational contexts or by enthusiasts of traditional navigation methods. While it played a significant role in maritime navigation during the 17th and 18th centuries, its practical application today is minimal.
What did john Davis invent?
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.
Is an instrument used to measure the position of stars.?
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.
How did African slaves get education?
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.
If a Mexican were to come and live in the US what do they do here?
Work , Work , Work , Work , Work , Work ! They do what You lazy Americans don't . Mexicans work hard . They do it all !
What is the verb in you work late?
Verb ' work. ( From To Work). Subject pronoun ; you Object ; late.
What is a work calendar?
A calendar at your work, for your work, that has your work schedule on it, etc.
Will American cd's work in Australia?
Yes it can work Yes it can work Yes it can work Yes it can work
