Rangarira ndima iri pasi apa uye ipapo pindura mubvunzo gare gare mumutauro mumwe chetewo sechikamu:  Passage: Vaviri vezvenyeredzi veFrance vanonzi Pierre Bouguer naCharles Marie de La Condamine ndivo vakatanga kuedza kuedza, vachiita zviyero zvavo pagomo rinoputika reChimborazo riri muEcuador muna 1738. Rwendo rwavo rwakanga rwabva kuFrance rwuchienda kuSouth America muna 1735 kuti vaedze kuyera urefu hwechivharo chemeridian yechikamu chimwe chete chenzira yegungwa pedyo neequator, asi vakatora mukana wacho kuti vaedze kuedza kutsauka. Muna December 1738, mumamiriro ezvinhu akaoma zvikuru enzvimbo nemamiriro okunze, vakaita zviyero zviviri pakukwirira kwemamita 4.680 uye 4.340. Bouguer akanyora mupepa ra 1749 kuti vakanga vakwanisa kuona kupinduka kwemasekonzi 8 e arc, asi akarerutsa kukosha kwemigumisiro yavo, achitaura kuti kuedza kwaizova nani kuitiswa mumamiriro ezvinhu ari nyore muFrance kana kuti England. Akawedzera kuti kuedza kwacho kwakanga kwaratidza kuti Pasi harigoni kuva goko risina chinhu, sezvakanga zvataurwa nevamwe vaifunga panguva iyoyo, kusanganisira Edmond Halley.  Mubvunzo: Vakaita zvokuyerwa vari pakakwirira zvakadini?
4,680 uye 4,340 m