Thomas Edison tried two thousand different materials in search of a filament for the light bulb. When none worked satisfactorily, his assistant complained, "All our work is in vain. We have learned nothing."
Edison replied very confidently, "Oh, we have come a long way and we have learned a lot. We now know that there are two thousand elements which we cannot use to make a good light bulb."n this helped them to make the giant step toward their innovation. so this shows that the more they made mistakes the closer they moved towards their achievement which came after many years of trial n errors which they used as stepping stones that elevated them to their desired heights.
Edison replied very confidently, "Oh, we have come a long way and we have learned a lot. We now know that there are two thousand elements which we cannot use to make a good light bulb."n this helped them to make the giant step toward their innovation. so this shows that the more they made mistakes the closer they moved towards their achievement which came after many years of trial n errors which they used as stepping stones that elevated them to their desired heights.
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