Thomas Edison tried two thousand different materials in search of a filament for the light bulb
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Answer:Thomas Edison tried two thousand different materials in search of a filament for the light bulb. ... Edison replied very confidently, “Oh, we have come a long way and we have learned a lot. We know that there are two thousand elements which we cannot use to make a good light bulb.”
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they felt solely a unified Germany will increase the expansion of their economy. • lt was believed that growth of economy and trade are often developed solely through unification of states. • It help to make unity among people's. • People are able to follow constitutions rule and it also give all rights to the people . • Now people can do any work without paying taxes or dues. • People can now able to protest against goverment if any wrong things happens.