The rock was then worked upon by fireplace-placing to warmth the rock, which might be quenched with a stream of drinking water. The ensuing thermal shock cracked the rock, enabling it to get eliminated by further streams of h2o from your overhead tanks. The Roman miners employed related techniques to operate cassiterite deposits in Cornwall and gui

moja skusenost so zlatym internetom. Mam idelane podmienky. som cca 700m vzdusnou ciarou od vysielaca. Medzi vysielacom a mojou antenou je len pole, ziadne stromy. Na antene plny sigfnal na dosahovanie maximalnej prenosovej rychlosti. Ping 18ms rychlost som nikdy nenameral cez 100Mbit ani vnoci od 1:00 do 4 rana. Rychlost sa pohybuje okolo 55Mbit.