John Hadley and Thomas Godfrey independently built the octant (which became the sextant later)
i guess planets
i guess planets
Nobody knows where the sextant was invented... It is possibly invented where a English people live. like probably Great Britain or Europe. --..................................--
by using it
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).
you can find sextant on history.com
you use a sextant to navigate.
least count of scale is 1mm
least count means L.C.
5 mm is the least count of theodolite.
for a levelling staff the least count is 0.01in and in m 0.005m
you draw a sextant by looking at googler in the images.
least count for micrometer is 0.01mm0.01 mm
The least count of the micrometer screw can be calculated using the formula given below: Least count = 0.01 mm
the least count of travelling microscope = 0.001 cm
digital micrometer least count calculation