Hi Frank,
A comment:
As Australia is in the southern hemisphere the satellite disc all face North
not South.
I have used the position of the sun to set the Azimuth of the satellite disc.
1st determine the time the sun has the same Azimuth. Then at that time adjust
the disc Azimuth so that the shadow of the horn is in the middle of the disc.
To finish, the altitude of the disc needs to be set. For correct adjustment you
1st need to make sure the arm holding the horn is at 90 deg to the disc.
Roderick Wall.
Frank Evans <[email protected]> wrote:
>AsImayhavementionedoncebefore,justlookatthesatellitedishesonthehouses.Theyareaimednotfarfromsouth.Youcangetthetimethatway,too.MaybeeventheAustralianAboriginalpeopledothatnowadays.Bytheway,ataBSSmeetingamemberonceshoweda(working)satellitedishtowhichhehadaddedasundial.Anevenbetterwayoftellingthetime!Frank55N1WOn08/03/201518:19,ArtKrenzelwrote:WhenIwasstationedinEnglandduringtheearly1970's,IhadaproblemorientingmyselfwhenIfirstgotoutofthesubway.SoIdevelopedamethodwherebyIaimedthehourhandofmywatchatthesunanddividedthearcbetweenthehourhandand12o'clockintotwoequalparts.Ithendrewanimaginarylinefromthecenterofthewatchtothecenterofthatarcandthatline,whenextended,pointedtotheSouth.ItwascrudebutquickandIdidnotneedanyotheritemstomakeitwork.Ofcourse,accesstothesunwasabitofaprobleminEnglandattimes.Iofferthisinformationasamoderndaycorollarytotheaboriginalsundialonhishand.ArtKrenzelToday'sTopics:1.Re:TellingtimeinoutbackQueenslandintheearly20thcentury(rodwall1234)2.Re:TellingtimeinoutbackQueenslandintheearly20thcentury(JohnPickard)3.RE:TellingtimeinoutbackQueenslandintheearly20thcentury(Schechner,Sara)----------------------------------------------------------------------Message:1Date:Sun,08Mar201509:56:10+1100From:[email protected]:[email protected],[email protected]:Re:TellingtimeinoutbackQueenslandintheearly20thcenturyMessage-ID:sdgpaeb27r5vrihvof195ugj.1425768970727@email.android.comContent-Type:text/plain;charset=utf-8HiJohn,Thanksthatisinteresting.IhavealwaysthoughabouthowourAustralianAboriginalsdeterminedtime.Doyouhaveanyinformationonthat?Regards,RoderickWall.---------------------------------------------------https://lists.uni-koeln.de/mailman/listinfo/sundial
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