Sun_compass History_of_the_compass

-


a sun compass uses position of sun in sky determine directions of cardinal points, making allowance local latitude , longitude, time of day, equation of time, , on. @ high latitudes, analog-display watch can used approximate sun compass. simple sundial can used better one. automatic sun compass developed lt. col. james allason, mechanised cavalry officer, adopted british army in india in 1938 use in tanks , other armoured vehicles magnetic field subject distortion, affecting standard issue prismatic compass. cloudy skies prohibited use in european theatres. copy of manual preserved in imperial war museum in london.








Comments

Post a Comment

Popular posts from this blog

History First_Bulgarian_Empire

-
1 history 1.1 establishment , consolidation 1.2 internal instability , struggle survival 1.3 territorial expansion 1.4 golden age 1.5 decline , fall history establishment , consolidation bulgaria @ turn of 7th century the bulgars of asparukh moved westwards bessarabia, subdued territories north of danube in modern wallachia, , established in danube delta. in 670s crossed danube scythia minor, nominally byzantine province, steppe grasslands , pastures important large herd stocks of bulgars in addition grazing grounds west of dniester river under control. in 680 byzantine emperor constantine iv (r. 668–685), having defeated arabs, led expedition @ head of huge army , fleet drive off bulgars suffered disastrous defeat @ hands of asparukh @ onglos, swampy region in or around danube delta bulgars had set fortified camp. bulgars advanced south, crossed balkan mountains , invaded thrace. in 681, byzantines compelled sign humiliating peace treaty, forcing them acknowledge bulgaria independ...
Read more

Discography Bruce_Driscoll

-
^ cite error: named reference blogspot1 invoked never defined (see page). ^ cite error: named reference apple1 invoked never defined (see page). ^ tamar kaprelian sinner or saint . rockmeeting.com. retrieved 2015-11-21.  ^ sleepy rebels - bah! humbug! (12/2/10) - stubbys house of christmas . stubbyschristmas.com. 2010-12-03. retrieved 2015-11-21.  ^ sleepy rebels still waiting rebellion . heave media. 2011-05-17. retrieved 2015-11-21.  ^ lana mir - lana mír | credits . allmusic. retrieved 2015-11-21.  ^ trouble, brent (2012-11-28). camera2: made . kick kick snare. retrieved 2015-11-21.  ^ blondfire discusses new record, 80s influences , sibling artistry | life+times . lifeandtimes.com. retrieved 2015-11-21.  ^ freedom fry - dark christmas . record stache. 2012-11-17. retrieved 2015-11-21.  ^ bruce driscoll | credits . allmusic. retrieved 2015-11-21.  ^ earthquake - single freedom fry on itunes . itunes.apple.com. 2012-02-14. retrieved 20...
Read more

Mediterranean_Privateer Ottoman_Algeria

-
purchase of christian slaves french friars (religieux de la mercy de france) in algiers in 1662. despite end of formal hostilities spain in 1580, attacks on christian , catholic shipping, slavery captured, became prevalent in algiers, , main industry , source of revenues of regency. in 17th century, algiers became, along other north african ports such tunis, 1 of bases anglo-turkish piracy. there many 8,000 renegades in city in 1634. (renegades former christians, fleeing law, voluntarily moved muslim territory , converted islam.) hayreddin barbarossa credited tearing down peñón of algiers , using stone build inner harbor. a contemporary letter states: infinity of goods, merchandise jewels , treasure taken our english pirates daily christians , carried allarach [ larache, in morocco], algire , tunis great enriching of mores , turks , impoverishing of christians privateer , slavery of christians originating algiers major problem throughout centuries, leading regular punitive expeditions...
Read more