KIDS QUIZ
FAMOUS INVENTORS AND INVENTIONS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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It did not last but for a few days.
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It lasted for over a year.
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It was too expensive to make.
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It got too hot and burned people.
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It would turn off and on sporadically.
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Detailed explanation-1: -These early bulbs had extremely short lifespans, were too expensive to produce or used too much energy. When Edison and his researchers at Menlo Park came onto the lighting scene, they focused on improving the filament–first testing carbon, then platinum, before finally returning to a carbon filament.
Detailed explanation-2: -It worked by passing electricity through a thin platinum filament in the glass vacuum bulb, which delayed the filament from melting. Still, the lamp only burned for a few short hours.
Detailed explanation-3: -Edison developed hearing problems at the age of 12.
Detailed explanation-4: -Thomas Edison’s toughest challenge to create the electric light bulb was to maintain the incandescent filament during the electric current. History tells that more than 1, 000 attempts were made.