…………..were eventually completely iron-clad, and played a role in the opening of Japan and China to trade with the West.

Related MCQs

• The polished axes were used for forest clearance and the establishment of crop farming, and were effective as to remain in use when bronze and ………………..appeared.
• ……………. engineers were also the first to devise automaton such as vending machines, suspended ink pots, automatic washstands and doors, primarily as toys, which however featured many new useful mechanisms such as the cam and gimbals.
• Architects and engineers were inspired by the structures of Ancient Rome, and men like ……………created the large dome of Florence Cathedral as a result.
• During …………………period, polished stone tools were made from a variety of hard rocks such as flint, jade, jadeite and greenstone.
• Military technology developed rapidly with the widespread use of the cross-bow and ever more powerful artillery, as the city-states of ………….were usually in conflict with one another.
• The later Stone Age, during which the rudiments of agricultural technology were developed, is called…………………...
• The …………….were the first inventors of hydroponics.
• ……………were well known in the 1940s although they are now uncommon.
• ……………..founded the Tabulating Machine Company in 1896 which later became the popular IBM (International Business Machines Corporation.A variety of machines were developed during the WWII.
• ………….concept of three major stages of social evolution (savagery, barbarism, and civilization) can be divided by technological milestones, such as fire, the bow, and pottery in the savage era, domestication of animals, agriculture, and metalworking in the barbarian era and the alphabet and writing in the civilization era.