1 9 6 9 ▁an . ▁It ▁was ▁repub lished ▁by ▁M IT ▁Press ▁in ▁ 1 9 7 1 ▁and ▁is ▁still ▁in ▁print . ▁ ▁It ▁is ▁one ▁of ▁the ▁sources ▁for ▁the ▁idea ▁- ▁considered ▁err one ous ▁by ▁modern ▁histor ians ▁- ▁that ▁Med ieval ▁Christian ity ▁had ▁returned ▁to ▁the ▁pre - s cient ific ▁notion ▁of ▁a ▁Fl at ▁Earth : ▁" In ▁medieval ▁times ▁there ▁was ▁a ▁return ▁to ▁the ▁concept ▁of ▁a ▁flat ▁Earth ▁and ▁a ▁dog mat ism ▁about ▁the ▁cry st all ine ▁cel est ial ▁spher es , ▁here ▁ep it om ized ▁in ▁a ▁wood cut ▁showing ▁the ▁mach in ery ▁responsible ▁for ▁their ▁motion ▁discovered ▁by ▁an ▁inqu ir er ▁who ▁has ▁broken ▁through ▁the ▁outer ▁sphere ▁of ▁fixed ▁stars . ▁Six teenth ▁century ." ▁- ▁Science ▁in ▁History , ▁vol . ▁ 1 , ▁The ▁Emer gence ▁of ▁Science . ▁ ▁The ▁Vol umes ▁Vol . 1 , ▁The ▁Emer gence ▁of ▁Science , ▁ ▁Vol . 2 , ▁The ▁Scient ific ▁and ▁Indust rial ▁Revolution , ▁▁ ▁Vol . 3 , ▁The ▁Natural ▁Sciences ▁in ▁Our ▁Time , ▁▁ ▁Vol . 4 , ▁The ▁Social ▁Sciences : ▁Con clusion , ▁ ▁External ▁links ▁Ker ry ▁Mag r uder ▁blog : ▁Is ▁this ▁a ▁medieval ▁flat - ear th ▁wood cut ? ▁ ▁Category : Book s ▁about ▁the ▁history ▁of ▁science ▁Category : 1 9 5 4 ▁non - f iction ▁books <0x0A> </s> ▁" Don ' t