Sextants use stars and the visible horizon to navigate. Those navigational capabilities are used to detect LONGITUDE and LATITUDE,

Only an idiot such as yourself can manage to be wrong about every single thing you say, for weeks on end, about such a SIMPLE subject.

12 and 14 year old children learn to use sextants.

THEY'VE WORKED FOR 300 YEARS without FAIL. Entire navy groups sailing around the world successfully, accurately, using them.

You didn't even know navigation using the stars

is done TO FIND

LONGITUDE and LATITUDE.

Which only work on spheres, of a specific, and invariant diameter.

Military leaders, trade sailors, explorers have used sextants and the starts successfully for the past 300 years,

and today, even 12 and 14 year old children

are taught star navigation.

You didn't know people have been using these same Stars and sextants successfully for the past 300 years.

Sextants use stars and the visible horizon to navigate. Those navigational capabilities are used to detect LONGITUDE and LATITUDE,

You illiterate, innumerate hick.

Only an idiot such as yourself can manage to be wrong about every single thing you say, for weeks on end, about such a SIMPLE subject.

12 and 14 year old children learn to use sextants.

To your mentally retarded mind they don't work. THEY'VE WORKED FOR 300 YEARS without FAIL.

You're the hick who didn't know navigation using the stars

is done

TO FIND LONGITUDE and LATITUDE,

the planet's SPHERICAL COORDINATES.

Which only work on spheres,

of a SPECIFIC and invariant diameter.

You haven't managed to give ONE right answer,

about something you've blabbered incoherently about, for the past week.

When 12 and 14 year old children can be taught fundamentals of navigation.

Sextants use stars and the visible horizon to navigate. Those navigational capabilities are used to detect LONGITUDE and LATITUDE,

HicK.

Only idiots like yourself can manage to be wrong about every single thing you say for weeks on end.

You're a hick who didn't know navigation using the stars is done

TO FIND LONGITUDE and LATITUDE, the planet's SPHERICAL COORDINATES.

Which only work on spheres of a SPECIFIC and invariant diameter.

You haven't managed to give a right answer,

about a SINGLE thing you've blathered as an illiterate, for the past week.