Eyes as cold as ice were measuring her every word.
It became, in fact, essential to invent a " micrometer " for measuring the small angles which were thus for the first time rendered sensible.
But on account of experimental errors in weighing and measuring, and through loss of material in the transfer of substances from one vessel to another, such analyses are rarely trustworthy to more than one part in about Soo; so that small changes in weight consequent on the chemical change could not with certainty be proved or disproved.
Equatorial telescope, is the first position micrometer constructed capable of measuring position angles to 1' of arc.
Kangaroo Island, at the entrance of St Vincent Gulf, is one of the largest islands on the Australian coast, measuring 80 m.