▁Furthermore ▁they ▁provide ▁a ▁convenient ▁way ▁to ▁examine ▁stra ined ▁fl ames ▁and ▁fl ames ▁with ▁holes . ▁These ▁are ▁also ▁known ▁under ▁the ▁name ▁of ▁" edge ▁fl ames ", ▁character ized ▁by ▁a ▁local ▁ext inction ▁on ▁their ▁axis ▁because ▁of ▁the ▁high ▁stra in ▁rates ▁in ▁the ▁vic inity ▁of ▁the ▁st agn ation ▁point . ▁ ▁D iff usion ▁fl ames ▁have ▁an ▁entirely ▁different ▁appearance ▁in ▁a ▁micro gravity ▁environment . ▁ ▁There ▁is ▁no ▁con ve ction ▁to ▁carry ▁the ▁hot ▁comb ust ion ▁products ▁away ▁from ▁the ▁fuel ▁source , ▁which ▁results ▁in ▁a ▁spher ical ▁fl ame ▁front , ▁such ▁as ▁in ▁the ▁cand le ▁seen ▁here . ▁This ▁is ▁a ▁rare ▁example ▁of ▁a ▁diffusion ▁fl ame ▁which ▁does ▁not ▁produce ▁much ▁so ot ▁and ▁does ▁not ▁therefore ▁have ▁a ▁typical ▁yellow ▁fl ame . ▁ ▁See ▁also ▁ ▁Bur ke – Sch umann ▁fl ame ▁ ▁Li ñ án ' s ▁diffusion ▁fl ame ▁theory ▁ ▁Em m ons ▁problem ▁ ▁Prem ixed ▁fl ame ▁ ▁Ox id izing ▁and ▁reducing ▁fl ames ▁ ▁O xy - f uel ▁comb ust ion ▁process ▁ ▁References ▁ ▁External ▁links ▁D iff usion ▁fl ames ▁in ▁micro gravity , ▁NASA ▁D iff usion ▁and ▁edge ▁fl ames ▁in ▁opposed - jet ▁burn ers ▁ ▁Category : Fire ▁Category : Com b ust ion ▁engineering <0x0A> </s> ▁North am pt ons hire ▁County ▁Cr icket ▁Club ▁is ▁one ▁of ▁eigh teen ▁first - class ▁county ▁clubs