Sii wadida faqradan-- Sanadkii 1881 Bandhigga Caalamiga ah ee Korontada
Shumacyada Yablochkov waxaa loo tixgeliyey mid ka mid ah waxyaabaha ugu soo jiidashada badan. Waqtigaas qiimahooda waxaa lagu qiyaasay inay hoos uga dhacday 66 senti (franc Faransiis ah) sanadkii 1877 illaa 10 senti oo keliya, taasoo ka dhigaysa inay aad ugu habboon yihiin sidoo kale laambadaha gaaska. Dhibaatada ugu weyni waxay ahayd in shumacyada loo baahnaa mashiin weyn oo awood leh si loo shido.