Section2:OftheclimateandhousesinFlatland. Aswithyou,soalsowithus,therearefourpointsofthecompassNorth,South,East,andWest. Therebeingnosunnorotherheavenlybodies,itisimpossibleforustodeterminetheNorthintheusualway;butwehaveamethodofourown. ByaLawofNaturewithus,thereisaconstantattractiontotheSouth;and,althoughintemperateclimatesthisisveryslight—sothatevenaWomaninreasonablehealthcanjourneyseveralfurlongsnorthwardwithoutmuchdifficulty—yetthehamperingeffortofthesouthwardattractionisquitesufficienttoserveasacompassinmostpartsofourearth. Moreover,therain(whichfallsatstatedintervals)comingalwaysfromtheNorth,isanadditionalassistiance;andinthetownswehavetheguidanceofthehouses,whichofcoursehavetheirside-wallsrunningforthemostpartNorthandSouth,sothattheroofsmaykeepofftherainfromtheNorth. Inthecountry,wheretherearenohouses,thetrunksofthetreesserveassomesortofguide. Altogether,wehavenotsomuchdifficultyasmightbeexpectedindeterminingourbearings. Yetinourmoretemperateregions,inwhichthesouthwardattractionishardlyfelt,walkingsometimesinaperfectlydesolateplainwheretherehavebeennohousesnortreestoguideme,Ihavebeenoccasionallycompelledtoremainstationaryforhourstogether,waitingtilltheraincamebeforecontinuingmyjourney. Ontheweakandaged,andespeciallyondelicateFemales,theforceofattractiontellsmuchmoreheavilythanontherobustoftheMaleSex,sothatitisapointofbreeding,ifyoumeetaLadyonthestreet,alwaystogivehertheNorthsideoftheway—bynomeansaneasythingtodoalwaysatshortnoticewhenyouareinrudehealthandinaclimatewhereitisdifficulttotellyourNorthfromyourSouth. Windowstherearenoneinourhouses:forthelightcomestousalikeinourhomesandoutofthem,bydayandbynight,equallyatalltimesandinallplaces,whenceweknownot. Itwasinolddays,withourlearnedmen,aninterestingandoft-investigatequestion,"Whatistheoriginoflight?" andthesolutionofithasbeenrepeatedlyattempted,withnootherresultthantocrowdourlunaticasylumswiththewould-besolvers. Hence,afterfruitlessattemptstosuppresssuchinvestigationsindirectlybymakingthemliabletoaheavytax,theLegislature,incomparativelyrecenttimes,absolutelyprohibitedthem. I—alas,IaloneinFlatland—knownowonlytoowellthetruesolutionofthismysteriousproblem;butmyknowledgecannotbemadeintelligibletoasingleoneofmycountrymen;andIammockedat—I,thesolepossessorofthetruthsofSpaceandofthetheoryoftheintroductionofLightfromtheworldofthreeDimensions—asifIwerethemaddestofthemad! Butatrucetothesepainfuldigressions:letmereturntoourhomes. Themostcommonformfortheconstructionofahouseisfive-sidedorpentagonal,asintheannexedfigure. ThetwoNorthernsidesRO,OF,constitutetheroof,andforthemostparthavenodoors;ontheEastisasmalldoorfortheWomen;ontheWestamuchlargeronefortheMen;theSouthsideorfloorisusuallydoorless. Squareandtriangularhousesarenotallowed,andforthisreason. TheanglesofaSquare(andstillmorethoseofanequilateralTriangle,)beingmuchmorepointedthanthoseofaPentagon,andthelinesofinanimateobjects(suchashouses)beingdimmerthanthelinesofMenandWomen,itfollowsthatthereisnolittledangerlestthepointsofasquareoftriangularhouseresidencemightdoseriousinjurytoaninconsiderateorperhapsabsentmindedtravellersuddenlyrunningagainstthem:andtherefore,asearlyastheeleventhcenturyofourera,triangularhouseswereuniversallyforbiddenbyLaw,theonlyexceptionsbeingfortifications,powder-magazines,barracks,andotherstatebuildings,whichisnotdesirablethatthegeneralpublicshouldapproachwithoutcircumspection. Atthisperiod,squarehouseswerestilleverywherepermitted,thoughdiscouragedbyaspecialtax. But,aboutthreecenturiesafterwards,theLawdecidedthatinalltownscontainingapopulationabovetenthousand,theangleofaPentagonwasthesmallesthouse-anglethatcouldbeallowedconsistentlywiththepublicsafety. ThegoodsenseofthecommunityhassecondedtheeffortsoftheLegislature;andnow,eveninthecountry,thepentagonalconstructionhassupersededeveryother. Itisonlynowandtheninsomeveryremoteandbackwardagriculturaldistrictthatanantiquarianmaystilldiscoverasquarehouse.