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Who built the sextant?
John Hadley and Thomas Godfrey independently built the octant (which became the sextant later)
How does a sextant work?
i guess planets
How a sextant work?
i guess planets
Where was the sextant invented?
Nobody knows where the sextant was invented... It is possibly invented where a English people live. like probably Great Britain or Europe. --..................................--
How did Lewis and Clark use a sextant?
by using it
How do you calculate readings of sextant?
first find out least count of main circular scale in degrees,then divide least count of main scale by total divisions on cylindrical scale(this cylindrical scale works as vernier scale for fist one,its least count will be in minutes) then further divide least count of cylindrical scale by total divisions of small vernier scale which touches it,(this small scale works as vernier scale for cylindrical scale and its least count will be in seconds).
Why sextant is named so?
as sextant consists a graduated circular arc that is of 60 degree so, arc forms one-sixth of a circle ,hence the name sextant
How do you find pitch of spherometer?
pitch is the linear progress made by the circular scale on the main scale in one complete rotation
What do you use vernier scales for?
It is an auxiliary device for making fine adjustment to an instrument, generally by means of a fine screw thread. Used in certain measuring instruments. It is a small moveable scale running next to the main graduated scale which indicates a fractional part of the main scale. An example would be a sextant or barometer
What came first Astrolabe Compass Scale mapsAerial photography?
atrolabe came first, the astrolabe was invented before the sextant, and the sextant was the model that made the compass
What is zero error of screw gauge?
When the anvil and spindle end are brought in contact, the edge of the circular scale should be at the zero of the sleeve (linear scale) and the zero of the circular scale should be opposite to the datum line of the sleeve. If the zero is not coinciding with the datum line, there will be a positive or negative zero error as shown in figure below. When the anvil and spindle end are brought in contact, the edge of the circular scale should be at the zero of the sleeve (linear scale) and the zero of the circular scale should be opposite to the datum line of the sleeve. If the zero is not coinciding with the datum line, there will be a positive or negative zero error as shown in figure below. When the anvil and spindle end are brought in contact, the edge of the circular scale should be at the zero of the sleeve (linear scale) and the zero of the circular scale should be opposite to the datum line of the sleeve. If the zero is not coinciding with the datum line, there will be a positive or negative zero error as shown in figure below.
Definition of Pitch of screw gauge?
Pitch is the distance from the crest of one thread to the next. the displacement of the circular scale due to a complete rotation of the screw, along the main scale is called screw pitch..
What are the main scale and vernier scale readings?
Vernier scale consists of main scale and vernier scale. The first line or the zeroth line coinciding with the main scale reading is the main scale reading. The vernier line except zeroth line coinciding with any line on main scale is the main scale reading.
What is pitch in micrometer screw gauge?
Diametres of various objects can be measured br using a micrometre screw gauge: Readings can be obseved by adapting following steps 1-Main scale reading;when one revolve the THIMBLE a scale appears with divisions 2-Circular scale reading;the digit apearing on circular scale conciding with the main scale. Main scale readind+(Circular scale reading into Least count) yields answer following link can be fruit ful for better techniques http://www.tutorvista.com/content/physics/physics-i/measurement-and-experimentation/screw-gauge.php Regards:MALLICK TAYYAB
What can you find out about sextant?
you can find sextant on history.com
What is the sextant used for?
you use a sextant to navigate.
What is main scale and vernier scale?
1)Main Scale is fixed(It does not move) Vernier scale slides along main scale.2)Least count of Mainscale is 0.1cmLeast count of vernier scale is 0.01cm
