icle ID = 4 7 5 5 9 & R D RI ss ue ID = 0 & Art icle Title = V ision + Imp act s + S park le ▁ ▁How ▁diam ond ▁performance ▁attributes : ▁Br ill iance , ▁Sc int ill ation ▁and ▁Fire ▁depend ▁on ▁human ▁vision ▁features ▁http :// www . gem . org . au / ck find er / user files / files / G AA _ J ournal _ V 2 5 _ No 3 _ web 2 ( 1 ). pdf ▁ ▁External ▁links ▁ ▁H ollow ay ▁C ut ▁Ad vis er ▁( H CA ) ▁ ▁Ide al - Scope ▁ ▁www . H ollow ay D iam onds . com . au ▁ ▁Category : L iving ▁people ▁Category : Year ▁of ▁birth ▁missing ▁( l iving ▁people ) <0x0A> </s> ▁M ec y cl oth or ax ▁o val is ▁is ▁a ▁species ▁of ▁ground ▁be et le ▁in ▁the ▁sub family ▁Ps yd r inae . ▁It ▁was ▁described ▁by ▁Slo ane ▁in ▁ 1 9 1 5 . ▁ ▁References ▁ ▁o val is ▁Category : Be et les ▁described ▁in ▁ 1 9 1 5 <0x0A> </s> ▁Thor nt on - P ick ard ▁was ▁a ▁well ▁known ▁British ▁camera ▁manufact urer ▁established ▁in ▁ 1 8 8 8 . ▁The ▁company ▁was ▁based ▁in ▁Al tr inch am , ▁near ▁Manchester , ▁and ▁was ▁an ▁early ▁pione er ▁in ▁the ▁development ▁of ▁the ▁camera