Babu wani abu na gaba ko hasken wuta, da mizani hakika ne. Don haka me yasa na gaba da baya fogs launuka daban-daban? Wannan shine yadda ake daidaita da yanayin gida. A mafi yawan lokuta, fitilun fog na baya suna ja, don haka me zai hana fararen fitilu masu haskakawa? Tunda hasken wuta ya riga ya kasance "majagaba", an yi amfani da jan a matsayin tushen hasken don guje wa fage. Kodayake haske yana kama da hasken wuta. A zahiri, ka'idar ba ɗaya take da tasirin da ba iri ɗaya ba ne, saboda yanayin hangen nesa yana buɗe hasken wuta don ƙarin haske. Sanya shi sauƙaƙe motoci ya fito daga baya don ganowa.
